Operation and Installation Manual TR7750 VE

Part no.: 84496, v. E

Standards The equipment to the following directives: European Directive 552/2004 (SES) amended by 1265/2007 (8.33 kHz channel spacing) European Directive 1999/5/EC (R&TTE)

The equipment is tested to the following product standards: EMC:

Health and Safety: Radio specifications:

EN 301489-1, EN301489-22, IC RSS141 issue 1, FCC part 15 and part 87 IEC 60950-1 EN60950, CSA-C22.2 60950 EN300676 (AM), EN301842-1 (VDL mode 2)

For an updated list of approvals and statements of conformity, these are available on:

www.jotron.com

Jotron AS| TR7750: Operators handbook  P/N: 84496 (v.E)

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List of abbreviations and definitions 100Base-T 100Mbit/s physical Ethernet adapter to interface to twisted pair (copper wire) LAN. RJ45 connector is used and range is 100m. ACARS Aircraft Communications Addressing and Reporting System(ACARS), is a digital data link system for transmission of short, relatively simple messages between aircraft and ground stations via radio or satellite. AF Audio frequency Alarm Refer to section 9.1 Alert Refer to section 9.2 ARC MkII Audio Remote Control unit (ARC MkII), is a Jotron manufactured remote unit for operating up to 1 channel in main/standby configuration (2 transceivers). BITE Built In Test Equipment bps Bits per second. Cat5 Cable Category 5 cable is a twisted pair high signal integrity cable type often referred to as Cat5 or Cat-5. Most Category-5 cables are unshielded, relying on the twisted pair design for noise rejection. Category 5 has been superseded by the Category 5e specification. This type of cable is used in structured cabling for computer networks such as Ethernet and ATM, and is also used to carry many other signals such as telephony and video. CMS Control and Management System, usually a IP-based network to monitor and control radios and accessories DRC Data Remote Control unit, is a Jotron manufactured remote unit for changing frequency on the radios that are connected to an ARC MkII (1channel). The DRC can set frequency and store/recall preset frequencies. DSP Digital Signal Processor is a specialized microprocessor designed specifically for digital signal processing. Jotron AS| TR7750: Operators handbook  P/N: 84496 (v.E)

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E&M (4W E&M) E&M is a type of supervisory line signalling that uses DC signals on separate leads, called the "E" lead and "M" lead, traditionally used in the telecommunications industry between telephone switches. The “E” lead is normally used to signal PTT to the radio and the “M” lead is used to signal squelch back to the voice control system. A “4W E&M” consists of a total of 8 wires, 2W for audio in each direction, 2W for PTT signalling and 2W for squelch signalling. ETSI European Telecommunication Standardisation Institute Ethernet A family of standards for computer networking technologies for local area networks (LAN). The standards cover physical connection, addressing and data transfer and are covered in IEEE 802.3. ICAO International Civil Aviation Organization IEC International Electro-technical Commission. IETF The Internet Engineering Task Force (IETF) develops and promotes Internet standards, cooperating closely with the W3C and ISO/IEC standards bodies and dealing in particular with standards of the TCP/IP and Internet protocol suite. IF In communications and electronic engineering, an intermediate frequency (IF) is a frequency to which a carrier frequency is shifted as an intermediate step in transmission or reception. The intermediate frequency is created by mixing the carrier signal with a local oscillator signal in a process called heterodyning, resulting in a signal at the difference or beat frequency. Intermediate frequencies are used in super heterodyne radio receivers, in which an incoming signal is shifted to an IF for amplification before final detection is done. IP The Internet Protocol (IP) is the principal communications protocol used for relaying datagram (packets) across and internetwork using the Internet Protocol Suite. Responsible for routing packets across network boundaries, it is the primary protocol that establishes the Internet. LAN Local Area Network MIB Management Information Base is a virtual database used for managing the objects (parameters) in a communications network. Most often associated with the Simple Network Management Protocol (SNMP). The MIB database is hierarchical (tree-structured). The software that performs the navigation in the MIB database is a MIB browser. The MIB database is Jotron proprietary and contains descriptions and definitions for all parameters in the radio. The MIB database is updated each time a new radio parameter is added or changed. Jotron AS| TR7750: Operators handbook  P/N: 84496 (v.E)

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MDF KRONE connector KRONE LSA-PLUS (or simply KRONE) is an insulation-displacement connector for communication signals. With a dedicated tool, connections can be made without soldering, screwing or insulation removal. 1 KRONE connector holds 10 pair or 20 signal wires and bay be mounted on brackets for cross-wiring.

ORC Operators Remote Control unit, is a Jotron manufactured remote unit used to recall preset frequencies on the radios that are connected to an ARC MkII (1channel). PA Power Amplifier PSU Power Supply Unit. Separate unit to power the equipment. PTT Push To Talk RACS Remote access and control system for remote control and supervision of radio systems. The software provides the user with full access to all monitoring and control parameters on all radios on all sites connected via LAN. RF Radio Frequency RSSI Received Signal Strength Indicator is a measurement of the power present or level of a received radio signal. RTP Real-time Transport Protocol defines a standardized packet format for delivering audio(VoIP) and video over IP networks. SDR Software-Defined Radio is a system where components that traditionally have been implemented in hardware (e.g. mixers, filters, amplifiers, modulators/demodulators, detectors, etc.) now are implemented by means of software on an embedded computing devices, i.e. a Digital Signal Processor (DSP). SIP Session Initiation Protocol is an IETF-defined signalling protocol, widely used for controlling multimedia communication sessions such as voice and video calls over the Internet Protocol (IP). The protocol can be used for creating, modifying and terminating two-party (unicast) or multiparty (multicast) communication sessions consisting of one or several media streams. S/N SIGNAL- TO-NOISE RATIO

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SNMP Simple Network Management Protocol is a UDP-based network protocol. It is used mostly in network management systems to monitor and control network connected devices like the Jotron radios. SNMP is a component of the Internet Protocol Suite as defined by the Internet Engineering Task Force (IETF). It consists of a set of standards for network management, including an application layer protocol, a database schema, and a set of data objects. SNMP exposes management data in the form of variables on the managed systems, which describe the system configuration. These variables can then be queried (and sometimes set) by managing applications like a MIB browser or the Jotron proprietary Radio Controller Client. TCP Transmission Control Protocol provides reliable, ordered delivery of a stream of bytes from a program on one computer to another program on another computer or device supporting the protocol. TCXO

Temperature Compensated Crystal Oscillator. UDP User Datagram Protocol is one of the core members of the Internet Protocol Suite, the set of network protocols used for the Internet. With UDP, computer applications can send messages, in this case referred to as datagram’s, to other hosts on an Internet Protocol (IP) network without requiring prior communications to set up special transmission channels or data paths. VSWR Voltage Standing Wave Ratio VCO

Voltage-controlled oscillator is an electronic oscillator designed to be controlled in oscillation frequency by a voltage input VCS Voice Communications System VCCS Voice Communication and Control System VOGAD Voice Operated Gain-Adjusting Device, is a type of automatic gain control for microphone/TX line amplification. It is used in radio transmitters to ensure correct modulation and to prevent over modulation. VoIP Voice over IP (VoIP) is a general term for a family of transmission technologies for delivery of voice communications over IP networks such as the intranet/Internet or other packet-switched networks.

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VDL mode 2 The VHF Data Link or VHF Digital Link (VDL) is a means of sending information between aircraft and ground stations. Aeronautical VHF data links use the band 117.975 - 137 MHz assigned by the International Telecommunication Union (ITU) to Aeronautical Mobile Route Services. VDL Mode 2 is the only mode being implemented operationally to support Controller Pilot Data Link Communications CPDLC. The physical (RF) link of the VDL mode 2 consist of radios that communicate with a bit rate of 31500 b/s using differential 8 phase shift keying (D8PSK) modulation and carrier sense multiple access (CSMA) as the access method to the RF link. VME VHF management entity is a control unit used in a VDL system to control the VDL radio during transmission and reception of messages.

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Amendment Record NO

INIT

DATE

CHAPTERS

1

OH

31.01.08

All

2

OH

16.09.08

All

3

OH

11.11.08

2.1, 3.1.6, 3.2.5, 3.2.6, 3.2.7, 3.2.8, 3.3.5, 3.4.4, 3.4.5, 3.4.6

4

OH

10.11.09

3.4.5

5

SHS/ OH

25.11.10

All

VERSION

REASON FOR CHANGE

A

New layout and text

B

New version, includes changes up to SW release 2.05 New part number for the manual.

C D beta E

Information regarding frequency stability, hardware key and protection of I/O lines added Pin 8 Aux 2 is N/C Major revision due to new manual standard. Supports SW release up to RA: 3.0x, TA: 3.0x

6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

The information in this book has been carefully checked and is believed to be accurate. However, no responsibility is assumed for inaccuracies. Jotron AS reserves the right to make changes without further notice to any products or modules described herein to improve reliability, function or design. Jotron AS does not assume any liability arising out of the application or use of the described product.

Jotron AS| TR7750: Operators handbook  P/N: 84496 (v.E)

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SAFETY INSTRUCTIONS

This equipment contains CMOS integrated circuits. Observe handling precautions to avoid static discharges which may damage these devices.

Some RF semiconductor devices used in this equipment may contain Beryllium Oxide. If inhaled, dust from this oxide can be toxic. No danger will arise from normal handling but no attempt should be made to tamper with these devices. On no account must these transistors be destroyed or discarded with industrial or domestic waste, but should be returned to the manufacturer for subsequent disposal or to a suitable destination facility that can safely handle the electronic waste.

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TABLE OF CONTENTS AMENDMENT RECORD ............................................................................................................... VIII SAFETY INSTRUCTIONS ................................................................................................................ IX TABLE OF CONTENTS ......................................................................................................................X 1

INTRODUCTION ....................................................................................................................... 1-1 1.1 1.2 1.3 1.4 1.5

2

TECHNICAL SPECIFICATIONS ............................................................................................ 2-1 2.1 2.2 2.3 2.4

3

DESIGN ................................................................................................................................... 1-1 MODELS COVERED BY THIS MANUAL ..................................................................................... 1-1 OPTIONS (MUST BE ORDERED SEPARATELY) .......................................................................... 1-2 LAYOUT OF THE TRANSCEIVER .............................................................................................. 1-2 APPLICATIONS ........................................................................................................................ 1-2 GENERAL SPECIFICATION, TR-7750....................................................................................... 2-1 TRANSMITTER UNITS, TA-7650, TA-7625, TA-7610 ............................................................ 2-2 POWER SUPPLY UNIT, PSU-7002 ........................................................................................... 2-2 RECEIVER UNIT, RA-7203 ..................................................................................................... 2-3

FUNCTIONAL DESCRIPTION ............................................................................................... 3-1 3.1 FRONT PANEL CONTROLS, TRANSMITTER UNIT .................................................................... 3-1 3.1.1 Display ............................................................................................................................ 3-1 3.1.2 Scroll/Select switch and Navigation buttons A, B and C ................................................ 3-1 3.1.3 PTT button ...................................................................................................................... 3-1 3.1.4 ON/OFF button............................................................................................................... 3-2 3.1.5 LED Indicators -TX ........................................................................................................ 3-2 3.1.6 Mic/Headset connector - TX ........................................................................................... 3-3 3.2 TRANSMITTER, REAR CONNECTIONS ...................................................................................... 3-4 3.2.1 Antenna connector (50 ohm N-type) ............................................................................... 3-4 3.2.2 Receiver ant. Connector (50 ohm BNC) ......................................................................... 3-4 3.2.3 DC input connector (Amphenol MS 3106A 10SL4S)(Jotron P/N: 96715) ..................... 3-4 3.2.4 I/O signals – general information................................................................................... 3-5 3.2.5 LAN connector - TX (RJ45) ............................................................................................ 3-5 3.2.6 AUX1 CONNECTOR - TX (RJ45) .................................................................................. 3-6 3.2.7 AUX2 connector - TX (RJ45) .......................................................................................... 3-6 3.2.8 REM connector - TX (RJ45) ........................................................................................... 3-7 3.2.9 Rx connector - TX (RJ45) ............................................................................................... 3-8 3.3 FRONT PANEL CONTROLS, RECEIVER UNIT ........................................................................... 3-9 3.3.1 Display - RX.................................................................................................................... 3-9 3.3.2 Scroll/Select switch and Navigation buttons A, B and C - RX ........................................ 3-9 3.3.3 ON/OFF button - RX ...................................................................................................... 3-9 3.3.4 LED Indicators -RX ...................................................................................................... 3-10 3.3.5 Headset connector - RX ................................................................................................ 3-10 3.4 RECEIVER, REAR CONNECTIONS ........................................................................................... 3-11 3.4.1 Antenna connector - RX (50 ohm N-type)..................................................................... 3-11 3.4.2 DC input connector - RX (Amphenol MS 3106A 10SL4S)(Jotron P/N: 96715) ........... 3-11 3.4.3 AC Input connector - RX (IEC 60320 - C14)................................................................ 3-12 3.4.4 LAN connector - RX (RJ45) .......................................................................................... 3-12 3.4.5 AUX1 CONNECTOR- RX (RJ45) ................................................................................. 3-13 3.4.6 AUX2 connector - RX (RJ45)........................................................................................ 3-13 3.4.7 REM connector - RX (RJ45) ......................................................................................... 3-14 Jotron AS| TR7750: Operators handbook  P/N: 84496 (v.E)

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3.5 PSU-7002, POWER SUPPLY UNIT, FRONT-VIEW .................................................................. 3-15 3.5.1 LED Indicators - PSU................................................................................................... 3-15 3.6 POWER SUPPLY UNIT REAR CONNECTORS. .......................................................................... 3-16 3.6.1 DC input connector – PSU (Amphenol MS 3106A 10SL4S)(Jotron P/N: 96715) ........ 3-16 3.6.2 D C output connector – PSU (Amphenol MS 3106A 12S3P)(Jotron P/N: 93697) ....... 3-16 3.6.3 AC Input connector - PSU (IEC 60320 - C14) ............................................................. 3-17 4

INSTALLATION ........................................................................................................................ 4-1 4.1 INTRODUCTION ....................................................................................................................... 4-1 4.2 INITIAL INSPECTION ............................................................................................................... 4-1 4.3 INSTALLATION INTO EQUIPMENT CABINET ............................................................................ 4-2 4.4 ANTENNA CONNECTORS ......................................................................................................... 4-3 4.5 AC AND DC CONNECTORS ..................................................................................................... 4-3 4.6 REMOTE SIGNALS ................................................................................................................... 4-4 4.6.1 Transceiver cable – Transceiver operation .................................................................... 4-4 4.6.1.1 Transceiver cable- pin out ....................................................................................... 4-5 4.6.1.2 Menu parameters, transmitter - receiver interconnection ........................................ 4-6 4.6.2 Audio in/out and Line loop keying .................................................................................. 4-7 4.6.2.1 Menu parameters, Monitor output ........................................................................... 4-7 4.6.2.2 Menu parameters, Line input -TX ........................................................................... 4-8 4.6.2.3 Menu parameters, Line output - RX ........................................................................ 4-8 4.6.3 Other key signals ............................................................................................................ 4-9 4.6.3.1 Menu parameters, Key source -transmitter.............................................................. 4-9 4.6.4 Squelch and AGC signals, receiver unit ....................................................................... 4-10 4.6.4.1 Menu parameters, Squelch output -receiver .......................................................... 4-11 4.6.5 Alarm and Select signals, transmitter and receiver ...................................................... 4-12 4.6.5.1 Menu parameters, Alarm and Select -Receiver ..................................................... 4-13 4.6.6 RX BUSY, KEY OUT and TX LOW POWER (GAS ALARM) – (Transmitter unit)....... 4-14 4.6.6.1 Menu parameters, RX BUSY, KEY OUT and TX LOW POWER (GAS ALARM) 4-15 4.7 APPLICATIONS ...................................................................................................................... 4-16 4.7.1 Transceiver, Local operation........................................................................................ 4-16 4.7.1.1 Setup procedure ..................................................................................................... 4-16 4.7.2 Transceiver, 2 wire remote ........................................................................................... 4-16 4.7.2.1 Setup procedure ..................................................................................................... 4-17 4.7.3 Transceiver, 4 wire remote ........................................................................................... 4-17 4.7.3.1 Setup procedure ..................................................................................................... 4-18 4.7.4 Transmitter, Main/Standby ........................................................................................... 4-19 4.7.4.1 Setup procedure ..................................................................................................... 4-20 4.7.5 Receiver, Main/Standby ................................................................................................ 4-21 4.7.5.1 Setup procedure ..................................................................................................... 4-21 4.7.6 AM data operation (ACARS) – Option: AM MSK ........................................................ 4-22 4.7.7 VDL mode 2 data operation (part of a VDL Ground Station) ...................................... 4-22 4.7.7.1 Setup procedure: Transceiver, VDL mode 2 operation ........................................ 4-23 4.7.7.2 Menu parameters: Transmitter, VDL mode 2, Config. menu................................ 4-24 4.7.7.3 Menu parameters: Transmitter, VDL mode 2, Interface menu ............................. 4-24 4.7.7.4 Menu parameters: Receiver, VDL mode 2, Config. menu .................................... 4-25 4.7.7.5 Menu parameters: Receiver, VDL mode 2, Interface menu .................................. 4-25

5

REMOTE SYSTEMS USING IP ............................................................................................. 5-26 5.1 INTRODUCTION ..................................................................................................................... 5-26 5.1.1 SNMP (Simple Network Management Protocol) .......................................................... 5-26 Jotron AS| TR7750: Operators handbook  P/N: 84496 (v.E)

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5.1.2 RTP (Real Time Protocol) ............................................................................................ 5-27 5.1.3 SIP (Session Initialization Protocol) ............................................................................ 5-27 5.1.4 HTTP (Hypertext Transfer Protocol) ........................................................................... 5-27 5.1.5 Remote control protocol using TCP ............................................................................. 5-27 5.1.6 VDL mode 2 protocol using TCP.................................................................................. 5-27 5.1.7 DHCP (Dynamic Host Configuration Protocol) ......................................................... 5-27 5.2 APPLICATIONS USING THE IP INTERFACE ............................................................................. 5-28 5.2.1 Introduction – IP Configuration and planning ............................................................. 5-28 5.2.2 Controlling a transceiver using a Radio Remote Control (RRC) ................................. 5-28 5.2.3 IP configuration plan .................................................................................................... 5-29 5.2.3.1 VoIP system with separate antennas for main and standby................................... 5-30 5.2.3.2 Setup procedure, VoIP using RRC (RTP and SIP) ............................................... 5-30 5.2.4 Remote Access and Control System over LAN (RACS). ............................................... 5-31 5.2.4.1 System layout ........................................................................................................ 5-31 5.2.4.2 Setup procedure ..................................................................................................... 5-32 6

ADAPTOR KIT......................................................................................................................... 5-33 6.1 MAIN DISTRIBUTION FRAME (MDF KRONE) ....................................................................... 5-33 6.1.1 Transmitter standard wiring ......................................................................................... 5-34 Receiver standard wiring ............................................................................................................ 5-35 6.1.2 Transceiver wiring, Main/Standby, 4Wire E&M, ARC, DRC/ORC and ACU ............. 5-36 6.1.2.1 System layout ARC, DRC with two antennas (main and standby) ....................... 5-37 6.1.2.2 System layout ARC, DRC/ORC with one antenna + ACU ................................... 5-37 6.1.2.3 Detailed wiring diagram ARC, DRC/ORC + ACU using MDF Krone ................ 5-38 6.1.2.4 Setup procedure – Control using ARC, DRC/ORC, ACU .................................... 5-39 6.1.3 Transceiver wiring, Main/Standby, 4Wire E&M, VCCS and ACU .............................. 5-40 6.1.3.1 System layout ........................................................................................................ 5-40 Detailed wiring diagram transceiver + ACU using MDF Krone ............................................. 5-41 6.1.3.2 Setup procedure, main/standby transceiver connected to an ACU + VCCS ......... 5-42 6.1.4 Transceiver, Main / Standby, 4Wire +E&M, APM, ARC and DRC ............................. 5-43 6.1.4.1 System Layout ....................................................................................................... 5-44 6.1.4.1 Detailed wiring diagram transceiver + APM using MDF Krone .......................... 5-44 6.1.4.2 Setup procedure ..................................................................................................... 5-45 6.2 LEGACY WIRING ADAPTOR BOARD – P/N 82715 (OPTIONAL) .............................................. 5-46 6.2.1 Configuration of the interface board ............................................................................ 5-46 6.2.2 Radio Configuration ..................................................................................................... 5-47 6.2.3 Limitations .................................................................................................................... 5-47 6.2.3.1 Receiver: ................................................................................................................ 5-47

7

ADVANCED RADIO FUNCTIONS AND RECOMMENDED SETTINGS......................... 6-1 7.1 INTRODUCTION ....................................................................................................................... 6-1 7.2 TRANSMITTER ........................................................................................................................ 6-1 7.2.1 VOGAD function and use -TX ........................................................................................ 6-1 7.2.2 Line mute level ................................................................................................................ 6-2 7.2.3 Frequency Offset (Option) .............................................................................................. 6-2 7.2.4 In-band PTT signalling (Option in-band)....................................................................... 6-2 7.3 RECEIVER ............................................................................................................................... 6-3 7.3.1 Squelch system ................................................................................................................ 6-3 7.3.1.1 Squelch: Recommended settings ............................................................................. 6-3 7.3.1.2 Details regarding the squelch system to use ............................................................ 6-4 7.3.1.3 Details regarding the functionality of the Signal/Noise (S/N) Squelch................... 6-4 7.3.1.4 Details regarding the Level squelch (Carrier override) .......................................... 6-5 Jotron AS| TR7750: Operators handbook  P/N: 84496 (v.E)

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7.3.2 8

In-band Squelch signalling (Option) .............................................................................. 6-6

OPERATING INSTRUCTIONS ............................................................................................... 7-1 8.1 INTRODUCTION ....................................................................................................................... 7-1 8.2 TRANSMITTER ........................................................................................................................ 7-3 8.2.1 User menu – Transmitter (Restricted access level) ........................................................ 7-3 8.2.2 User menu – Transmitter (Default access level) ............................................................ 7-4 8.2.3 Settings, information and configuration menus – Transmitter ....................................... 7-5 8.2.3.1 Radio control group - TX ........................................................................................ 7-6 8.2.3.2 TX config group - TX.............................................................................................. 7-7 8.2.3.3 Interface config group - TX ..................................................................................... 7-8 8.2.3.4 Bite system group - TX ........................................................................................... 7-9 8.2.3.5 System info group - TX ........................................................................................... 7-9 8.2.4 Parameter details – Transmitter ................................................................................... 7-10 8.2.4.1 Radio control group - TX ...................................................................................... 7-10 8.2.4.2 TX config group - TX............................................................................................ 7-11 8.2.4.3 Interface config group - TX ................................................................................... 7-14 8.2.4.4 Bite system group - TX ......................................................................................... 7-17 8.2.4.5 System info group -TX .......................................................................................... 7-17 8.3 RECEIVER ............................................................................................................................. 7-19 8.3.1 User menu – receiver (Restricted access level) ............................................................ 7-19 8.3.2 User menu – Receiver (Default access level) ............................................................... 7-20 8.3.3 Settings, information and configuration menus – Receiver .......................................... 7-21 8.3.3.1 Radio control group - RX ...................................................................................... 7-22 8.3.3.2 RX config group - RX ........................................................................................... 7-23 8.3.3.3 Interface config group - RX .................................................................................. 7-24 8.3.3.4 Bite system group - RX ......................................................................................... 7-25 8.3.3.5 System info group - RX ......................................................................................... 7-25 8.3.4 Parameter details – Receiver........................................................................................ 7-26 8.3.4.1 Radio control group - RX ...................................................................................... 7-26 8.3.4.2 RX config group - RX ........................................................................................... 7-27 8.3.4.3 Interface config group - RX .................................................................................. 7-30 8.3.4.4 Bite system group - RX ......................................................................................... 7-32 8.3.4.5 System info group - RX ......................................................................................... 7-34

9

FAILURES AND CORRECTIVE ACTIONS ........................................................................ 8-35 9.1 9.2 9.3 9.4 9.5

10

ALARMS ............................................................................................................................... 8-35 ALERTS ................................................................................................................................. 8-35 SYSTEM COMPONENTS ......................................................................................................... 8-35 TRANSMITTER ERROR CONDITIONS ...................................................................................... 8-35 RECEIVER ERROR CONDITIONS............................................................................................. 8-40 MAINTENANCE..................................................................................................................... 9-1

10.1 PREVENTIVE MAINTENANCE .............................................................................................. 9-1 10.2 PC UTILITIES ....................................................................................................................... 9-1 10.2.1 Radio Controller client ................................................................................................... 9-1 10.2.2 MIB-browser ................................................................................................................... 9-2 10.2.3 IP-Ping............................................................................................................................ 9-2

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11 11.1 11.2 11.3 11.4 11.5 12

DIMENSION AND WEIGHT .............................................................................................. 10-1 TRANSMITTER UNIT .......................................................................................................... 10-1 POWER SUPPLY ................................................................................................................. 10-2 RECEIVER UNIT ................................................................................................................ 10-3 TRANSCEIVER (SUB RACK) ............................................................................................... 10-4 PACKAGING ...................................................................................................................... 10-4 SUPPORTING DOCUMENTS ............................................................................................ 11-5

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1 Introduction 1.1 Design

The Jotron Receiver and Transmitter are “State of the art” fully solid state design based on a Software-Defined Radio (SDR) concept with a Digital Signal Processor (DSP) as the core element. The DSP provide all signal handling between the IF signal format and the analogue audio signals and vice versa. This includes filtering, de-modulation, modulation signal leveling and more. The processor also handles all the control signaling within the RA and TA units, and externally. The units are fully software defined and easily upgradable with improved or new functionality. The units can be controlled either locally or remotely via several communication protocols including Ethernet (LAN). The RF frequencies are synthesizer controlled.

1.2 Models covered by this manual

The following models / variants are covered by this operator’s manual

Model TR-7750, Transceiver (VHF) TR-7725, Transceiver (VHF) TR-7710, Transceiver (VHF) TA-7650, Transmitter (VHF) TA-7625, Transmitter (VHF) TA-7610, Transmitter (VHF) RA-7203, Receiver (VHF)

P/N X-84700 X-84700 X-84700 X-84000 X-84000 X-84000 X-84500

Contain units RA-7203, TA-7650, PSU-7002 RA-7203, TA-7625, PSU-7002 RA-7203, TA-7610, PSU-7002 TA-7650, PSU7002 TA-7625, PSU7002 TA-7610, PSU7002 RA-7203

Output Frequency range 50 Watts 118-137 (156) MHz 25 Watts 118-137 (156) MHz 10 Watts 118-137 (156) MHz 50 Watts 118-137 (156) MHz 25 Watts 118-137 (156) MHz 10 Watts 118-137 (156) MHz N/A 118-137 (156) MHz

Modes AM, (D8PSK) AM, (D8PSK) AM, (D8PSK) AM, (D8PSK) AM, (D8PSK) AM, (D8PSK) AM, (D8PSK)

Table 1-1, Radio models

Throughout this manual, transmitter unit, TX, TA-7650 or TA-76xx refers to any of the three different power variants of the transmitter (TA-7650, TA-7625 or TA-7610) unless otherwise noted. The term transceiver, TR, TR-7750 or TR-77xx refers to any variant of the transceiver unless specifically noted in the text, and the term receiver, RX and RA-7203 is used for the receiver unit (RA-7203). The operating procedures for the different RX/TX models are equal, except the maximum rated output power.

Jotron AS| TR7750: Operators handbook  0BIntroduction P/N: 84496 (v.E)

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1.3 Options (must be ordered separately) Optionally the Transmitter can include the following functionality, depending on configuration. Optional functions Extended freq. 118144 MHz Extended freq. 118156 MHz Carrier Offset In-band signalling

Description Extended operating frequency to 144 MHz (Option 144 MHz) Extended operating frequency to 156 MHz (Option 156 MHz) CLIMAX offset of the transmitter frequency (ICAO standard) (Option offset) Audio line tone keying of the transmitter and/or squelch signalling from the receiver. (Option In-band) Voice over IP audio and keying (Option VoIP) Frequency modulation (Option FM) ACARS data link standard (Option AMMSK) The transceiver implements the media access control (MAC) and physical layer of the VDL mode 2 network. Communication to the VME is done using TCP/IP. (Option VDL 2)

VoIP FM modulation AM MSK VDL mode 2

1.4 Layout of the transceiver The receiver unit, RA-7203 operates as an independent receiver. The transmitter unit TA-7650 operates as an independent transmitter, but requires the power supply unit, PSU-7002 for operation on AC power. The receiver and transmitter units may be placed in entirely different locations or together and may also be configured as a transceiver with local operation from the front panel.

Figure 1.1, Complete Transceiver, RA-7203, TA-7650 and PSU-7002

1.5 Applications

The transmitter TA-7650 and the receiver RA-7203 can be used either as a standalone transmitter / receiver for ground to air voice or data communication, or combined as a transceiver with RX muting and common audio control via the interface of the Transmitter unit. The transmitter / receiver can be operated in the following modes: •

Locally as a Transceiver, with microphone and headphone connected to the front panel connector. Jotron AS| TR7750: Operators handbook  0BIntroduction P/N: 84496 (v.E)

Page 1-2

•

As a Transceiver, connected to a VCS (Voice Control System) using 600-ohm analogue lines for audio, together with keying in form of in-band tones, external voltages, ground or phantom keying.

•

As a Transceiver, connected to a VCS (Voice Control System) using Ethernet (LAN/WAN) for VoIP audio and keying.

•

Connected to a VME (VHF ground station) system as a data modem, using VDL mode 2.

•

Connected to a VDL (VHF ground station) system using 600-ohm analogue lines for audio containing AM-MSK data from an external ACARS modem.

•

In addition the transmitter/receiver has a large range of options for remote control using Ethernet, serial lines or front panel controls.

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2 Technical SPECIFICATIONS 2.1 General specification, TR-7750 Applicable Standards AM, AM-MSK VDL mode 2 Voice over IP EMC Shock Vibration

ICAO annex 10, ETSI EN 300676 ETSI EN-301841 - 1 EUROCAE ED-137 (RTP / SIP) ETSI EN-301489 part 1/22, FCC rule 15B and 87, IC RSS-141 Transport: IEC-721-3-2, Class 2M3 Transport: IEC-68-2-32, Class 2M3. IEC-68-2-6

General, all units

AM 25 kHz

Frequency range Frequency accuracy (stability) RF Modes Bit rate Audio frequency response Data ports Protocols

118-137 MHz (118-144MHz or 118-156 MHz optional) < ±1.0 ppm@ -20°C to +55 °C, 75 dBc >65 dBc >75 dBc up to 95% < 5% @95% modulation 600Ω, -40 to +10dBm – adjustable sensitivity 600Ω, -46 to 0dBm (Depending on input level. Relative to RX in and TX monitor level) -40 to +10 dBm on line input, threshold level is adjustable >40 dB ≤ -90 dBc (-43 dBm @ 50W output) ≤ -110 dBc (-63 dBm @ 50W output) Attack time: 110 dB

Squelch system Squelch RF level Squelch Signal/Noise Squelch activation time Squelch hysteresis Audio AGC (AAGC) Signal/Noise AGC range AGC attack time AGC decay time Differential group delay In-band squelch signal Line output Harmonic distortion Cross modulation rejection Blocking/desensitisation Dynamic range Spurious response rejection Permissible RF input level Power consumption Heat dissipation MTBF MTTR Dimension Receiver unit Weight

Combination of RF level and Signal/Noise (digital coherent squelch) -5 dBµV to +42 dBµV (-112 dBm to -65 dBm) 5 dB S/N to 20dB S/N @30% modulation 5VDC between pin 7 and 8 will key the transmitter

Level

Max Volt. [V]

Max Curr [mA]

15

50

O O O I

I

I

I

-46 to 0 15Vpp dBm +5 to +48V ref p5 -5 to -48V ref p4 +5 to +48V ref p8 -5 to -48V ref p7

± 50

± 50

Table 3-4, AUX2 connector, transmitter, pin out

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3.2.8 REM connector - TX (RJ45) This connector is normally connected to equipment used for remote control / remote supervision of the transmitter. It contains basic interfacing signals used for remote control, and will in many cases be the only connector used. When the Transmitter is connected together with a Receiver, using a standard Cat5E Transceiver patch cable between the units (RX: REM to TX: RX connector), the Transmitter REM connector will contain the basic functionality to control both the transmitter and the receiver. With this cable installed, the receiver line output will be connected to the transmitter line input to give a 2W interface to the transceiver. In addition there will be a squelch output signal available on the transmitter REM connector.

REM connector, transmitter – Remote control of the transceiver Name PIN Purpose Dir Level

RS485_Z RS485_Y LINE_P

LINE_N

TX_KEY_G

1 2 3

6

4

RX_BUSY_OUT 5

ALARM GND

7 8

RS485 (-) RS485(+) Balanced line input/output to TA/RA, 600 ohm Balanced line input/output to TA/RA, 600 ohm. (For unbalanced line input: Connect to GND, p8) Grounding this pin will key transmitter RX Busy indicator output – Open collector (squelch indicator) Low=Alarm (TA or TA/RA) Common ground

I/O I/O I/O

I/O

I

Max Volt. [V]

Max Curr [mA]

±5V ±5V -40 to +10 dBm

± 48 (Key -40 to input) +10 dBm GND

5

O

15

10

O -

15

50

Table 3-5, REM connector, transmitter, pin out

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3.2.9 Rx connector - TX (RJ45) This connector is normally connected to the REM connector on a co-located receiver when operated as a transceiver. When connected to a receiver, it will make functionality such as: • Common Rx/Tx 2 wire remote audio line interface • Receiver audio in the local headset interface on the transmitter unit • Rx & Tx audio on the Tx monitor output • Transceiver alarm signalling • Receiver squelch information in the transmitter to be used on the transmitter interface or when operated as a VDL mode 2 radio Rx connector, transmitter. Interface to RX (transceiver config) Name PIN Purpose Dir Level

RS485_Z RS485_Y LINE_P

1 2 3

LINE_N

6

TX_BUSY

4

RX_BUSY

5

INT_ALARM 7

GND

8

RS485 (-) RS485(+) Balanced line input from Receiver unit, 600 ohm Balanced line input from Receiver unit, 600 ohm TX Busy indicator output Open collector (Mute output) RX Busy optocoupler-input (Repeater key input) This internal alarm signal is a combined I/O signal that is connected to a co-located receiver for receiving alarm signalling from the receiver (for display on the transmitter and to signal alarm from the transmitter (for display on the receiver). Input or output Low=Alarm Common ground

I/O I/O I I

Max Volt. [V]

Max Curr [mA]

±5V -40 to +10 ± 48V dBm

O

5

10

I

48

32

I/O

48

1

-

Table 3-6, Rx connector, transmitter, pin out

Jotron AS| TR7750: Operators handbook  2BFunctional description P/N: 84496 (v.E)

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3.3 Front Panel Controls, Receiver unit Navigation button A

Display

Scroll / Select Switch

Navigation button B Sq / Navigation button C

Indicators: SQ: Squelch open (yellow) AL: Alarm active (red) REM: Remote ready (green) STBY: Standby (yellow)

ON/OFF button

Headset connector

Loudspeaker

Figure 3-4, Front view, receiver unit, RA-7203

3.3.1 Display - RX The default display screen shows the most important operational parameters; Frequency and modulation. In addition, the display will show several menus, submenus and operational parameters when entering into the menu using Navigation button A. The default display also indicate if the receiver operated on AC or DC power, by “AC” or “DC” in the upper part of the display.

3.3.2 Scroll/Select switch and Navigation buttons A, B and C - RX The navigation buttons, A, B and C, together with the Scroll/Select switch are used to navigate through the menus. The Scroll/Select switch has three actions: It can be turned clockwise, counter-clockwise, or momentarily pressed in. In general the use of the navigation buttons are: A or Scroll/Select right: Increase a value (up) B or Scroll/Select left: Decrease a value (down) C or Scroll/Select press: Confirm or Enter. The user interface will indicate which navigation button to use. Navigation button C is dedicated to squelch ON/OFF button in the default view. 3.3.3 ON/OFF button - RX To switch the unit ON or OFF: Press and hold button for approx 2s.

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3.3.4 LED Indicators -RX SQ (yellow):

The receiver squelch is open (receiving audio) when lit.

AL (red):

Indicates that an alarm is present in the receiver unit. Details of the alarm will be shown on the display.

REM (green):

This LED has multiple functions. The REMOTE indicator will be lit with a constant green colour when the receiver is “ready” for remote operation. Ready means that the audio is output to an external source (600 ohm line input) or VoIP. In addition the REMOTE indicator will flash yellow each time the unit is communicating on either of the remote interfaces (RS232, RS485, Ethernet).

STBY (yellow):

The receiver is kept in standby, either by user input, an external signal to the remote interface or because an alarm condition has been detected and the receiver is set up as a MAIN receiver. In standby the receiver will not output any audio on any audio interface.

3.3.5 Headset connector - RX Headset connector Name PIN Purpose

Dir

Level

N/C N/C Headset

1 2 3

O

1W

N/C RS232 RS232 +12VDC

6 4 5 7

O I O

±12V ±12V +12V

GND

8

-

GND

No connection No connection Headset output contains received audio. No connection RS232 TX RS232 RX +12 VDC to external amplifier (100mA max.) Common ground

Max Volt. [V]

Max Curr [mA]

±15 ±15

Table 3-7, Headset connector, receiver, pin out

The Headset connector is used for multiple purposes. • Headset connector: The Headset output (referenced to GND) contains the received audio. •

RS232 serial line The RS232 serial line may be used to control radio parameters from an external.

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•

Hardware key to change access level: In order to change the access level (see chapter 8.3.4.3 for details) a hardware key must be inserted into the microphone/headset connector before entering in to the menu system. The hardware key consists of a RJ45 connector where pin no. 4 and 5 (RS232 RX and TX) is connected together.

3.4 Receiver, rear connections

Figure 3-5, Rear view, receiver unit, RA-7203.

3.4.1 Antenna connector - RX (50 ohm N-type) Connect directly to a receiver antenna, or to the receiver antenna connector (BNC) on the transmitter unit. 3.4.2 DC input connector - RX (Amphenol MS 3106A 10SL4S)(Jotron P/N: 96715)

Figure 3-6, Receiver DC input connector, rear view

Connector for DC supply (21.6 - 31.2 VDC). Connect to an external DC supply to operate the unit on DC or as a backup supply if the main AC fails. A is the positive (+) connection and B is connected to ground or chassis (-).

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3.4.3 AC Input connector - RX (IEC 60320 - C14)

Figure 3.7, AC input connector

Input for external AC (male). AC is input between A(N) and C(L). B is chassis ground. The voltage range is from 85 to 264 VAC, 47-63Hz. Note! Although signal ground has the same potential as AC ground and DC minus (-), AC ground and DC (-) should not be used for signalling purpose. 3.4.4 LAN connector - RX (RJ45) This connector contains the Ethernet bus and is normally connected to a nearby switch/hub. It can also be connected directly to a computer, using a twisted pair Ethernet cable. LAN interface connector Name PIN Purpose LAN_TXP 1 Tx data LAN_TXN 2 Tx data LAN_RXP 3 Rx data LAN_D3P 4 Optional LAN_D3N 5 Optional LAN_RXN 6 Rx data LAN_D4P 7 Optional LAN_D4N 8 Optional Table 3-8, LAN interface connector, pin out

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3.4.5 AUX1 CONNECTOR- RX (RJ45) This connector is normally connected to equipment used for remote control / remote supervision of the receiver. AUX1 connector, receiver unit Name PIN Purpose

ALARM_P ALARM_N Select_in_P Select_in_N RS232_S RS232_R +12V

1 2 3 6 4 5 7

GND

8

Dir

Alarm out-relay (NO) Alarm out-relay (NO) Select in, optocoupler input Select in, optocoupler input RS232 Transmit data RS232 Receive data +12VDC output to external equipment (max 100mA) Common ground

Level

Max Volt. [V]

Max Curr [mA]

±48

120

±48

32

O O I I O I

1W ±12V ±12V ±12V

± 15 ± 15

O

+12V

12

-

GND

100

Table 3-9, AUX1 connector, receiver, pin out

3.4.6 AUX2 connector - RX (RJ45) This connector is normally connected to equipment used for remote control / remote supervision of the transmitter. AUX2 connector, receiver unit Name PIN Purpose

Squelch_out_P 1 Squelch_out_N 2 AGC_HILO_P

3

AGC_HILO_N

6

N/C N/C AGC_OUT

4 5 7

N/C

8

Dir

Closed=Receiving (Sq open), optocoupler output Closed=Receiving (Sq open), optocoupler output Hi/Lo output depending on signal strength, optocoupler output Hi/Lo output depending on signal strength

Level

Max Volt. [V]

Max Curr [mA]

± 48

120

+15

50

5

1

O O O O -

AGC analogue voltage output, depending on signal strength. Referred to GND GND

O

0-4V

-

GND

Table 3-10, AUX2 connector, receiver, pin out

Jotron AS| TR7750: Operators handbook  2BFunctional description P/N: 84496 (v.E)

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3.4.7 REM connector - RX (RJ45) This connector is normally connected to a co-located transmitter unit (RX connector) when used in a transceiver configuration, or to other equipment used for remote control of the receiver. When connected to a transmitter, via a transceiver cable, the connection gives “transceiver” functionality to the transmitter (Rx line and Squelch). The TX_BUSY and RX_BUSY signals are also used in VDL mode 2 configurations to signal that the transmitter or receiver is busy transferring data. Interface to Remote equipment or a transmitter unit Name PIN Purpose Dir

RS485_Z RS485_Y LINE_P

1 2 3

LINE_N

6

TX_BUSY

4

RX_BUSY INT_ALARM

5 7

GND

8

RS485 (-) RS485(+) Line output from Receiver unit, 600 ohm Line output from Receiver unit, 600 ohm TX Busy indicator input (Mute input) RX Busy output Low=Alarm (Note: I/O – low input will also be recognized as an alarm (EXT)) Common ground

Level

Max Volt. [V]

Max Curr [mA]

I/O I/O I/O ± 15 O I

48

32

O

5

1

I/O

5

1

-

GND

Table 3-11, REM connector, receiver, pin out

Jotron AS| TR7750: Operators handbook  2BFunctional description P/N: 84496 (v.E)

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3.5 PSU-7002, Power Supply Unit, front-view

Indicators: AC: Operating on AC ON: ON (DC output)

Figure 3-8, PSU-7002, front view

3.5.1 LED Indicators - PSU AC (yellow):

Indicates that AC is present, and that the unit currently is operating on the main AC power supply.

ON (green):

Indicates that the PSU is ON and supplies DC on its output. The DC is either derived from the main AC input (shown by the AC indicator), or from the backup DC input (AC indicator dark).

Jotron AS| TR7750: Operators handbook  2BFunctional description P/N: 84496 (v.E)

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3.6 Power Supply Unit rear connectors.

Figure 3-9, Power supply unit - rear view

3.6.1 DC input connector – PSU (Amphenol MS 3106A 10SL4S)(Jotron P/N: 96715) The DC input is connected to the DC backup supply (if available). Input range is 21.6 - 31.2 VDC and current consumption is max 9A average when the transmitter operates with full rated power output (50W). A is the positive (+) connection and B is connected to ground (-).

Figure 3-10, DC input connector, PSU

3.6.2 D C output connector – PSU (Amphenol MS 3106A 12S3P)(Jotron P/N: 93697) The DC output connector is connected to the transmitter unit and contains the +28V DC supply for the transmitter. The DC is generated from the main AC input or the DC backup input.

Figure 3-11, DC output, PSU

A is the positive connector pin (+) and B is connected to ground (-).

Jotron AS| TR7750: Operators handbook  2BFunctional description P/N: 84496 (v.E)

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3.6.3 AC Input connector - PSU (IEC 60320 - C14)

Figure 3-12, AC input connector, PSU

Input for external AC (male). AC is input between A(N) and C(L). B is chassis ground. The voltage range is from 85 to 264 VAC, 47-63Hz. Note! Although signal ground has the same potential as AC ground and DC minus (-), AC ground and DC () should not be used for signalling purpose.

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4 Installation 4.1 Introduction The procedures for installing the radio units / transceiver are described in table 4.1 below. It is recommended that these procedures are completed in the order shown. Procedure

Ref. chapter

1 2

4.2 4.3

3

4 5 6 7

Initial inspection Install equipment into 19” sub racks (equipment cabinet) Connect chassis stud to system earth or cabinet

Figure 3-2 (TX) Figure 3-5 (RX) Figure 3-9 (PSU) Connect remote connectors as required 4.6 Connect antenna connectors 4.4 Connect DC supply (if required) 4.5 Connect AC supply (if required 4.5 Table 4-1, Installation procedures

4.2 Initial inspection

On receipt of the radio units, remove all transit packaging and check that there is no damage to the equipment. If damage is evident, contact Jotron immediately and retain the original transit packaging.

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4.3 Installation into equipment cabinet

The units may be installed into a standard 19” sub-rack with a height of 3U ( 1U= 44.45 mm). The sub-rack is divided into 84 TE units horizontally (1TE=5.08mm). The transmitter occupies 28 TE, the PSU occupies 14TE and the receiver unit occupies 14TE. For a transceiver this leaves a free space of 28TE available for other equipment. Figure 4-1 shows some examples for installation into 19” sub-rack. From top to bottom the figure shows: 6 receivers in one sub-rack, 2 transmitters with PSU in one sub-rack and 3 transmitters without PSU (operated on DC) in one sub-rack. Jotron suggests that more space is added for better heat dissipation, if possible.

Figure 4-1, Examples of various configurations

Jotron AS| TR7750: Operators handbook  3BInstallation P/N: 84496 (v.E)

Page 4-2

4.4 Antenna connectors

The antenna should be of good quality with regards to gain and VSWR to obtain maximum performance. Make sure that the VSWR on the antenna is low, and that the cable from the transmitter to the antenna is of good quality to avoid mismatch and unnecessary losses. A cable loss of 1 dB is the same as reducing the power output of a 50W transmitter to less than 40W. Similarly, a cable loss of 2 dB is the same as reducing the output power to less than 32W.

In areas were thunderstorms and lightning is a problem, surge arrestors should be mounted where the antenna cables enters into the building. The arrestors should be of good quality and be capable of handling the output power of the transmitter. The antenna output of the transmitter is an N-type antenna connector at the back of the transmitter. The second connector (BNC-type) is the output from the Tx antenna switch and can be used to connect to a receiver for T/R switching to a common antenna in Transceiver configuration. This output connector must NOT be used for TX main/standby switching.

4.5 AC and DC connectors

Refer to section 3.2.3, 3.4.2, 3.4.3 and 3.6 for voltages and connectors.

Jotron AS| TR7750: Operators handbook  3BInstallation P/N: 84496 (v.E)

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4.6 Remote signals

Several remote signals are available on the rear interfaces of the radio units. These signals can be grouped into: Audio signals, Key signals, Data interface signals and other signals. Note, for all interface signals, RJ45 connectors are used. As far as practically possible, the pairs used on a standard Ethernet connection are used when a signal is input/output as a pair to the radio (e.g. audio lines). For interconnections between the transmitter and receiver, and for interconnection to a distribution panel with RJ45 connectors, standard Cat5E, Ethernet cable should be used. This is a good quality, screened cable, with 1 to 1 connections between the two connectors. Below is an overview of the signals available and their primary use. Refer to chapter 3.2 and 3.4 for an overview of the different connectors. 4.6.1 Transceiver cable – Transceiver operation When the Transmitter is wired together with a Receiver as a Transceiver, the Transmitter REM connector will also have the basic functionality for remotely controlling the receiver. Transceiver wiring may ether be done by using a standard Cat5e computer cable with RJ45 connectors between the units (Rx-REM to Tx-RX connector) or via KRONE connection inter-wiring

The Transceiver cable signals and pin out are as follows:

4 pairs

RJ45 - Cat 5E, FTP

CABLE

TX - REM/RX

RX - REM

Pin no

Pin no

PIN NAME

DESCRIPTION

1

1

RS485_Z

RS485 - serial communication

2

2

RS485_Y

RS485 - serial communication

3

3

LINE_P

RX Audio 600ohm balanced

4

4

TX BUSY

TTL L=transmitting (RX pullup)

5

5

RX BUSY

TTL L=receiving (TX pullup)

6

6

LINE_N

RX Audio 600ohm balanced

7

7

ALARM

Alarm (TTL) I/O TRX alarm

8

8

GND

Ground

Table 4-2, Transceiver, transmitter – receiver interconnections

When connecting the signals on the transmitter RX connector with the signals on the receivers REM connector, via the transceiver cable, the following functionality is added to the transmitter and receiver: 

The receiver audio line (p.3 and p.6) is input to the transmitter. This makes receiver audio available in the transmitter headphone connector, allowing only one plug to be used for a combined headset/microphone. In addition a 2 wire interface to the transmitters audio input line is possible for combined transmitter and receiver audio. Finally, it enables monitoring of both the transmitted audio and the received audio via the monitor output line (AUX2, p.3 and p.6) on the transmitter.



A RX Busy signal (p.5) is input to the transmitter from the receiver. This signal signals the transmitter that the RX is busy. This is used in VDL operation.

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

A TX Busy signal (p.4) is output from the transmitter to the receiver. This signal signals the receiver that the TX is busy (transmitting). This is used in VDL operation, and to mute the receiver while transmitting (see table below).



A receiver alarm in/out is connected to the transmitter alarm in/out. This enables the functionality that the complete transceiver (both receiver and transmitter unit) will enter into alarm state if one of the units fails. This is useful if the complete transceiver should be switched to a backup transceiver.



The RS485 serial lines from both units are connected in parallel. This is useful to have only one connection point for the RS485 on the transceiver for remote control. RS485 serial bus is primarily used by the Data Remote Control unit (DRC) and Operators Remote Control unit (ORC) to remotely set/change frequency and other parameters, on the Receiver, Transmitter or Transceiver.

4.6.1.1 Transceiver cable- pin out Standard Ethernet Cat5 patch cable (straight)

Figure 4.2, Ethernet patch cable pin out

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4.6.1.2 Menu parameters, transmitter - receiver interconnection Menu path: Interface config ► RS485 (TX and RX) RS485 (TX and RX) RS485 (TX and RX)

Parameter

Details

Bitrate

See chapter 8.2.4.3 and 8.3.4.3 for details

Address

See chapter 8.2.4.3 and 8.3.4.3 for details

Protocol

See chapter 8.2.4.3 and 8.3.4.3 for details

Menu path: TX config ► Audio (TX) Audio (TX) Menu path: RX config ► Audio (RX) Audio (RX) Audio (RX)

Parameter

Details

Monitor output

See chapter 8.2.4.2 for details

Line=> Head gain Parameter

See chapter 8.2.4.2 for details

Mute on transmit Output source

See chapter 8.3.4.2 for details

Details

See chapter 8.3.4.2 for details

Line Output See chapter 8.3.4.2 for details level Table 4-3, Settings associated with the transmitter - receiver interconnection

Jotron AS| TR7750: Operators handbook  3BInstallation P/N: 84496 (v.E)

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4.6.2 Audio in/out and Line loop keying

Figure 4-3, Audio interfaces on the transmitter and receiver units

With reference to Figure 4-2, the following audio remote signals are available on the rear connectors: 

Monitor out: Monitor signal, usually connected to a recording unit.

4.6.2.1 Menu parameters, Monitor output Menu path

Parameter

Details

Audio (TX) Audio (TX)

Monitor output

See chapter 8.2.4.2 for details

Monitor level

See chapter 8.2.4.2 for details

Table 4-4, Settings associated with MONITOR OUTPUT (TA – AUX1)

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

Line input, transmitter: This is the transmitter audio line input. This signal is usually connected to a VCS system or a remote control that uses a 600 ohm line interface.

4.6.2.2 Menu parameters, Line input -TX Menu path: TX config ► Audio (TX) Audio (TX) Audio (TX) Audio (TX) Keying (TX) Keying (TX)



Parameter

Details

Input source

See chapter 8.2.4.2 for details

Line sensitivity

See chapter 8.2.4.2 for details

Line termination Line mute level

See chapter 8.2.4.2 for details

Source

See chapter 8.2.4.2 for details

See chapter 8.2.4.2 for details

Loop key bias

Line loop Keying. See chapter 8.2.4.2 for details Table 4-5, Settings associated with LINE_INPUT (TX-REM)

Line output, receiver: This is the receiver audio line output. This signal is usually connected to the VCS system or a remote control that uses a 600 ohm line interface.

4.6.2.3 Menu parameters, Line output - RX Menu path: RX config ►

Parameter

Details

Audio (RX) Audio (RX)

Output source

See chapter 8.3.4.2 for details

Line output level

See chapter 8.3.4.2 for details

Table 4-6, Settings associated with LINE_OUTPUT (RX-REM)

Jotron AS| TR7750: Operators handbook  3BInstallation P/N: 84496 (v.E)

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4.6.3 Other key signals

Figure 4-4, Key signals on the transmitter unit

In addition to the line loop keying, it is possible to key the transmitter, using several other hardware and software options.  TX_KEY_G This is a input on the transmitter REM connector, pin 4. This pin, if connected to GND, will key the transmitter. 

TXKEY_P, TXKEY_N This is a differential input, on the transmitter AUX2 connector, pin 7 and 8. A DC voltage between 5 and 48V(+ or -) between the pins will key the transmitter. Note also that this is a differential signal, not connected to any ground potential inside the transmitter, therefore the signal can be configured for both positive and negative voltage keying (see figure).

4.6.3.1 Menu parameters, Key source -transmitter Menu path: TX config ►

Parameter

Details

Keying (TX)

Source

See chapter 8.2.4.2 for details Table 4-7, Key Source settings

Jotron AS| TR7750: Operators handbook  3BInstallation P/N: 84496 (v.E)

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4.6.4 Squelch and AGC signals, receiver unit

Figure 4-5, Squelch and AGC signals receiver unit



RX_BUSY (REM, p.5) Squelch output signal that is refered to GND. This signal can be used to detect that the receiver is busy on a connected transmitter unit, on a remote control or any other units that can use this signal. The signal function (Open or Closed on busy) can be configured.



SQUELCH (AUX2, p.1 and p.2) This signal indicates that the squelch is activated / closed. The signal function (Open or Closed on busy) can be configured. The output is a solid state relay, rated for maximum 100V / 100mA.



AGC_HILO_P, AGC_HILO_N (AUX2, p.3 and p.6) This signal indicates that a signal above approximately +40 dBuV is received. This can be used to detect if the signal comes from a collocated transmitter operating on the same frequency (Closed) or a transmission from an aircraft (Open).

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

AGC VOLTAGE (AUX2, p.7) This is an analogue output 0-4V. The output voltage is 0V for an input of -111dBm and increases linearly with the input signal up to -80dBm where the voltage reach +4V. This signal may be used by a voting system to determine which receiver is receiving the strongest signal from an aircraft. Also called Best Signal Selection (BBS).

Figure 4-6, AGC output voltage vs. RF input signal

4.6.4.1 Menu parameters, Squelch output -receiver Menu path: RX config ►

Parameter

Range

Squelch (RX) Squelch (RX)

SqOut output

See chapter 8.3.3.2 for details

RxBusy output

See chapter 8.3.3.2 for details Table 4-8, Squelch output configuration

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4.6.5 Alarm and Select signals, transmitter and receiver

Figure 4-7, Alarm and select signals, transmitter

The Alarm output signals that the radio unit has detected an alarm internally. The Select input is used to select or deselect (inhibit) a particular unit. By deselecting a unit, the unit will enter into standby mode and can no longer be used for radio communication. All other functionality remains operational when the radio is in standby mode. The Alarm and Select pin out are equal on the transmitter and the receiver units, except for the ALARM (REM, p.7) pin. This signal is only available on the transmitter unit and is used to signal an alarm from either the transmitter or the receiver unit when configured as a transceiver. 

ALARM_P, ALARM_N (AUX1, pin 1 and 2) This is a differential output, used to signal that the unit is in Alarm state. Default the radio is set up with the internal pull-up enabled (+12V).



ALARM (REM, pin 7) Same as the signal above, but this signal is referenced to GND. Available on the transmitter unit only. Default the internal pull-up is enabled (+12V).

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

SELECT (AUX1, pin 3 and 6) This input is connected to an optocoupler. The SELECT requires an external voltage to operate. One way to use the SELECT signal is to connect it to the ALARM output signal from another radio unit. If the ALARM signal (ALARM_P and ALARM_N) on a primary (main) radio is connected to the SELECT_P and SELECT_N on a secondary (backup) radio, then automatic switchover from the main to the standby radio is performed when the main radio detects an alarm. In this mode, a pull-up (set as default) is required on the ALARM output from the primary radio.

4.6.5.1 Menu parameters, Alarm and Select -Receiver Menu path: Interface config ►

Parameter

Details

Alarm config (TX and RX) Alarm config (TX and RX)

Alarm pin pull-up

See chapter 8.2.4.3 and 8.3.4.3 for details

Select polarity

See chapter 8.2.4.3 and 8.3.4.3 for details

Table 4-9, Alarm and Select settings, transmitter and receiver

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4.6.6 RX BUSY, KEY OUT and TX LOW POWER (GAS ALARM) – (Transmitter unit)

Figure 4-8, Misc signals, transmitter



RX BUSY (SQ) (REM, pin 5) - INPUT This signal is available when a receiver is connected to the transmitter with a Transceiver cable (standard Cat5e computer cable) between the transmitter RX and the receiver REM connector. The signal is the same as the RX BUSY signal from the receiver. It is routed from the receiver via the transceiver cable and made available for remote applications via the transmitter REM connector. When the radio is used for VDL mode 2, this input is required to enable the transmitter to detect when the receiver is busy.



KEY_OUT_P, KEY_OUT_N (AUX2, pin 1 and 2) - OUTPUT This output can be used for external equipment that requires a key confirmation signal from the transmitter. The key signal is available immediately after a key input is received via any of the key sources. Normally RF is produced within a few milliseconds after a key input is applied to the transmitter, if the KEY_OUT is used for external equipment that uses a relay to switch the RFpower, it may be necessary to delay the RF output using the RF Delay software setting (see 8.2.4.2 for details) in order to prevent hot switching of the RF signal. When a RF delay is applied, the KEY_OUT will close immediately after a key input signal is detected, the RF power from the transmitter output stage will be delayed (according to the setting), this allows RF switches in power amplifiers or other external equipment to settle before RF is output from the transmitter. The KEY_OUT signal can also be used to mute the receiver when connected to the mute input of a receiver unit. Jotron AS| TR7750: Operators handbook  3BInstallation P/N: 84496 (v.E)

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

TXLOW_P, TXLOW_N - GAS ALARM (AUX2, pin 4 and 5) - INPUT This input is used to immediately switch the transmitter into the preconfigured low power setting. The input requires an external pull-up to operate. The low power level must be set, as required, in the radio menu system to ensure correct functionality. (See 8.2.4.1 for details). This function, also called “Gas Alarm”, is used when the radio is installed in an environment where an immediate reduction in the output power is required. Specifically this is used on offshore installations and process plants when there is an increased risk of explosion. The input is connected to the output of an external gas detector.

4.6.6.1 Menu parameters, RX BUSY, KEY OUT and TX LOW POWER (GAS ALARM) Menu path: Radio control ►

Parameter

Low power level (TX)

Details

See chapter 8.2.4.1 for details

Menu path: TX config ►

Parameter

Details

Keying (TX)

RF delay

See chapter 8.2.4.2 for details

Table 4-10, RX BUSY, KEY OUT and TX LOW POWER (GAS ALARM)

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4.7 Applications 4.7.1 Transceiver, Local operation In a transceiver setup for local operation, the microphone and headset are connected to the microphone/headset connector at the front of the transmitter. The transceiver cable (Cat5e computer cable) allows all required connections (Microphone, Headset) to be done on the transmitter unit. Connection for local operation is shown in Figure 4-8 and tab.

Transceiver cable Figure 4-9, Transceiver, Local configuration, interfacing

4.7.1.1 Setup procedure Step

Description

1

Connect a Transceiver cable (Cat 5e) between TA (RX connector) and RA-(REM connector).

2

Set the Mute on transmit to enabled (receiver)

3

Set Audio output source to Lineout (receiver)

4

Set Audio input source to Mic (or Auto) (transmitter)

5

Set Monitor output to headset (transmitter)

6

Set Line=> Head gain to Ok headset audio

7

Set Keying source to include Mic (transmitter)

8

Connect a coax cable (RG58 or better) between the TA – Receiver antenna connector (BNC) and the antenna input on the receiver. Alternatively, use separate antennas for the TA and RA.

Reference 4.6.1.1 8.3.4.2 8.3.4.2 8.2.4.2 8.2.4.2 8.2.4.2 8.2.4.2 3.2.2 and 3.4.1

Table 4-11, Transceiver, Local configuration

4.7.2 Transceiver, 2 wire remote The transceiver can be set up to use a 2 wire (2W) audio connection for both the transmitter and the receiver. In this configuration, the required interface signals (Squelch, PTT, Alarm, Select, and Audio) are found on the transmitter REM connector. Caution should be exercised when using in-band Jotron AS| TR7750: Operators handbook  3BInstallation P/N: 84496 (v.E)

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signalling in this configuration, since an improper set-up of the in-band parameters may lead to unwanted keying of the transmitter from the receiver audio output.

Transceiver cable Figure 4-10, Transceiver, Remote configuration with 2 wire audio interface

4.7.2.1 Setup procedure Step

Description

1

Connect the transceiver cable between TA-RX connector and RA-REM connector.

2

Set Mute on transmit to enabled (receiver) – if desired

3

Set Audio output source to Lineout (receiver)

4

Set Audio input source to line (transmitter)

5

Set Keying source to include txkeygnd

6

Connect a coax cable (RG58 or better) between the TA – Receiver antenna connector (BNC) and the antenna input on the receiver. Alternatively, use separate antennas for the TA and RA. Other useful signals in Remote configuration: AUX1 Alarm out, Select in, RS232, +12V TAAUX2 RAAUX2 TA – REM

Reference 4.6.1.1 8.3.4.2 8.3.4.2 8.2.4.2 8.2.4.2 3.2.2 and 3.4.1

Key out relay, Monitor output, TX_LOW (Gas alarm) input, TXKEY

3.2.6 and 3.4.5 3.2.7

Squelch out relay, AGC HILO output, AGC voltage output

3.4.6

RS485, Line input, Key, Squelch, Alarm

3.2.8

Table 4-12, Transceiver, Remote (2W) interface

4.7.3 Transceiver, 4 wire remote In a 4 wire (4W) configuration, separate audio lines are used for the transmitter and for the receiver. When used in this configuration, the audio input to the transmitter is input on the transmitter REM connector and the audio output from the receiver is output on the receiver REM connector. Jotron AS| TR7750: Operators handbook  3BInstallation P/N: 84496 (v.E)

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This is the standard configuration when the radios are connected to a voice control system. This is also the recommended configuration when in-band tones are used for PTT and Squelch signalling.

Figure 4-11, Transceiver, Remote configuration with 4 wire audio interface

4.7.3.1 Setup procedure Step Description 1

Audio line configuration

3

Set Audio output source to Lineout (receiver)

4

Set Audio input source to line (transmitter)

5

Set Keying source to include txkeygnd ( or other signal if desired)

6

Connect a coax cable (RG58 or better) between the TA – Receiver antenna connector (BNC) and the antenna input on the receiver. Alternatively, use separate antennas for the TA and RA. Other useful signals in Remote configuration: AUX1 Alarm out, Select in, RS232, +12V TAAUX2 RAAUX2 TA – REM

Reference 4.6.2 8.3.4.2 8.2.4.2 8.2.4.2 3.2.2 and 3.4.1

Key out relay, Monitor output, TX_LOW (Gas alarm) input, TXKEY

3.2.6 and 3.4.5 3.2.7

Squelch out relay, AGC HILO output, AGC voltage output

3.4.6

RS485, Line input, Key, Squelch, Alarm

3.4.7

Table 4-13, Transceiver, Remote (4W) interface

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4.7.4 Transmitter, Main/Standby By connecting the Alarm output from one (main) transmitter to the Select input on a standby transmitter (P to P and N to N), it is possible to perform automatic switching between the units in case of an alarm on the Main unit. When this is wired correctly between the units, the standby unit will automatically be activated in case there is a failure on the main unit. This configuration is used when there is a requirement for automatic main/standby switching. The interconnection between the main and standby units must be done by either a special cable with RJ45 connectors in each end, or using a distribution panel such as the optional KRONE adaptor board from Jotron. (See Error! Reference source not found.)

Figure 4-12, Main / Standby transmitter

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4.7.4.1 Setup procedure Step

Description

1

2

Connect the alarm_out signal (p.1.2) from AUX1 on the main transmitter to the select_in signal (p.3.6) on AUX1 on the standby transmitter. The connection can be done via a distribution panel (KRONE, see Error! Reference source not found. ) or by making a special cable with RJ45 connectors in both ends. The cables used should be of the same quality as a CAT5E network cable and the screen should be connected in the plugs. Set Alarm config, Alarm pin pull-up to Enabled (default)

3

Set Alarm config, Select polarity to Low (default)

4

Set the main transmitter Operation mode to Main

5

Set the backup transmitter Operation mode to Norm (default)

6

Connect separate antennas to the two transmitters.

Reference 3.2.6

8.2.4.3 8.2.4.3 8.2.4.1 8.2.4.1 -

Alternatively use an external antenna change over unit (ACU) in order to switch the antenna between the main and standby transmitters. The antenna change over unit can be controlled by the alarm signal on the main unit

Table 4-14, Main/Standby configuration, transmitters

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4.7.5 Receiver, Main/Standby By connecting the Alarm output from one (main) receiver to the Select input on a standby receiver (P to P and N to N), it is possible to perform automatic switching between the units in case of an alarm on the Main unit. When this is wired correctly between the units, the standby unit will automatically be activated in case there is a failure on the main unit. This configuration is used when there is a requirement for automatic main/standby switching. The interconnection between the main and standby units must be done by either a special cable with RJ45 connectors in each end, or using a distribution panel such as the optional KRONE adaptor board from Jotron. (See Error! Reference source not found.)

Figure 4-13, Main / Backup receiver

4.7.5.1 Setup procedure Step

Description

1

2

Connect the alarm_out signal (p.1.2) from AUX1 on the main receiver to the select_in signal (p.3.6) on AUX1 on the standby receiver. The connection can be done via a distribution panel (KRONE,see Error! Reference source not found.) or by making a special cable with RJ45 connectors in both ends. The cables used should be of the same quality as a CAT5E network cable and the screen should be connected in the plugs. Set Alarm config, Alarm pin pull-up to Enabled (default)

3

Set Alarm config, Select polarity to Low (default)

4

Set the main receiver Operation mode to Main

5

Set the stabdby receiver Operation mode to Norm (default)

6

Connect separate antennas to the two receivers.

Reference 3.4.5

8.3.3.3 8.3.3.3 8.3.3.1 8.3.3.1 -

Alternatively use an external antenna distribution system or a RF splitter. The antenna connection can also be done via a pair of main/standby transmitters.

Table 4-15, Main/backup configuration, receivers

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4.7.6 AM data operation (ACARS) – Option: AM MSK In the AM-MSK mode the transmitter and the receiver automatically incorporates the required audio filtering and AGC values used for ACARS operation. The radios do not have internal modems for this use, an external modem must be interconnected with the radio using the remote line input and output. 4.7.7 VDL mode 2 data operation (part of a VDL Ground Station) The TA7650/RA7203, configured as a VDL transceiver, implements the lower layers of the VDL mode 2 protocol. The VDL transceiver is part of the physical layer and the media access layer (MAC). A VHF management entity -VME (control unit) need to be connected to the VDL transceiver for full VDL mode 2 data operation. The connection to the VME must be done using the ethernet interface on the radio, a TCP/IP based protocol is used to communicate VDL mode 2 data packets and set-up between the radio units and the VME. To operate the transceiver as a VDL mode 2 ground station, the following is required: • A VHF management entity able to control the transmission and reception via independent TCP/IP connections to the transmitter and receiver units. • The VHF management entity (VME) must support the proprietary Jotron TCP/IP protocol described in document: VDL mode 2: TCP/IP Protocol description. This document is available for system developers upon request.

Figure 4-14, Transceiver, VDL mode 2 configuration

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4.7.7.1 Setup procedure: Transceiver, VDL mode 2 operation Step

Description

1

Connect an 8 wire Cat5e cable between TA-RX connector and RAREM connector. This will enable the RX busy and TX busy signalling between the transmitter and receiver unit. Set transmitter and receiver to VDL mode 2 operation (Only available when ordered with this option).

2

3 3

4

The radio unit needs to be rebooted (Off/On) when changing the modulation to or from VDL mode 2. Configure VDL mode 2 parameters via the TX config and RX config menus. (See below) Configure TCP/IP addresses and ports for VDL mode 2 operation, and additionally IP addresses and ports for control using SNMP via UDP/IP (See below). Connect a coax cable (RG58 or better) between the TA – Receiver antenna connector (BNC) and the antenna input on the receiver.

Reference 4.6.1.1 8.2.4.2 and 8.3.4.2

8.2.4.2 and 8.3.4.2 5.5.3 and 5.12.3 3.2.2 and 3.4.1

Alternatively, use separate antennas for the TA and RA. Other useful signals when operation on VDL mode 2 AUX1

Alarm out, Select in, +12V

TAAUX2 RA-

Key out relay

3.2.6 and 3.4.5 3.2.7

Squelch out relay, AGC HILO output, AGC voltage output

3.4.6

Squelch, Alarm

3.4.7

AUX2 TA – REM

Table 4-16, Transceiver, VDL mode 2 operation

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4.7.7.2 Menu parameters: Transmitter, VDL mode 2, Config. menu Menu path: TX config ►

Parameter

Details

VDL mode 2 (TX) VDL mode 2 (TX) VDL mode 2 (TX) VDL mode 2 (TX) VDL mode 2 (TX) VDL mode 2 (TX)

Input source

See chapter 8.2.4.3 for details

Output power

See chapter 8.2.4.3 for details

Inter access (TM1)

See chapter 8.2.4.3 for details

Channel busy (TM2) Persistence (P)

See chapter 8.2.4.3 for details

Max attempts (M1)

See chapter 8.2.4.3 for details

See chapter 8.2.4.3 for details

Table 4-17, VDL mode 2 settings in TX config menu

4.7.7.3 Menu parameters: Transmitter, VDL mode 2, Interface menu Menu path: Interface config ►

Parameter

Details

LAN (TX) LAN (TX) LAN (TX) LAN (TX) LAN (TX) LAN (TX) LAN (TX) LAN (TX) LAN (TX)

Address

See chapter 8.2.4.3 for details

Netmask

See chapter 8.2.4.3 for details

Default gateway

See chapter 8.2.4.3 for details

SNMP port

See chapter 8.2.4.3 for details

SNMP trap IP

See chapter 8.2.4.3 for details

SNMP trap port

See chapter 8.2.4.3 for details

VDL input port

See chapter 8.2.4.3 for details

VDL input IP

See chapter 8.2.4.3 for details

SNMP trap interval

See chapter 8.2.4.3 for details

Table 4-18, VDL mode 2 settings in TX interface menu

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4.7.7.4 Menu parameters: Receiver, VDL mode 2, Config. menu Menu path: RX config ►

Parameter

Details

VDL mode 2 (RX) VDL mode 2 (RX) VDL mode 2 (RX) VDL mode 2 (RX) VDL mode 2 (RX)

Station ID

See chapter 8.3.4.2 for details

Provider Code

See chapter 8.3.4.2 for details

Message format

See chapter 8.3.4.2 for details

Mute on transmit

See chapter 8.3.4.2 for details

CU Interval

See chapter 8.3.4.2 for details

Table 4-19, VDL mode 2 settings in RX config menu

4.7.7.5 Menu parameters: Receiver, VDL mode 2, Interface menu Menu path: Interface config ►

Parameter

Details

LAN (RX) LAN (RX) LAN (RX) LAN (RX) LAN (RX) LAN (RX) LAN (RX) LAN (RX) LAN (RX)

Address

See chapter 8.3.4.3for details

Netmask

See chapter 8.3.4.3for details

Default gateway

See chapter 8.3.4.3for details

SNMP port

See chapter 8.3.4.3for details

SNMP trap IP

See chapter 8.3.4.3for details

SNMP trap interval

See chapter 8.3.4.3for details

SNMP trap port

See chapter 8.3.4.3for details

VDL output IP

See chapter 8.3.4.3for details

VDL output port

See chapter 8.3.4.3for details

Table 4-20, VDL mode 2 settings in RX interface menu

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5 Remote systems using IP 5.1 Introduction The radio units include advanced remote control using the ethernet / LAN connectors on the radios. Each receiver and transmitter has its own independent network connection, allowing a flexible configuration where the transmitters and receiver can be installed separately or collocated on the same radio site. Figure 5-1 illustrates the protocol suite within the radio and the protocol supported in the standard units and which can be supplied as options. VoIP and VDL mode 2 are not included in the standard radio.

REM CTRL SNMP

RTPED137

REM CTRL

WEB server

Jotron Prop.

HTTP

VDL M.2

VoIP SIPED137

TCP

UDP

Internet Protocol (IPv4), DHCP, ICMP ETHERNET MAC Figure 5-1, Ethernet protocol suite in the radio units

• • • • •

Link layer: Ethernet, 100BaseT (IEEE 802.3-2005) and 10BaseT (IEEE 802.3i) Internet layer: IPv4 and ICMP (Ping) Transport layer: UDP and TCP Application layer: DHCP, HTTP, SIP, RTP and SNMP Applications: Remote control, Voice Over IP, VDL mode 2, Web server

Refer to chapter 8.2.4.3 and chapter 8.3.4.3 for detailed parameter settings. 5.1.1 SNMP (Simple Network Management Protocol) The SNMP protocol is used to remote control the radio. The radio supports SNMP v.2 with traps and object read/write. Using the SNMP protocol, the radio can be remotely controlled by a standard SNMP MIB browser or by a dedicated remote control program using SNMP management. Each object in the radio has a dedicated OID (Object Identifier) which is described in detail in the file: JOTRON-BASESTATION-MIB. This file is available for system integrators upon request.

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5.1.2 RTP (Real Time Protocol) The RTP protocol is used to stream audio to/from the radio unit. The radio supports standard 64 kbit/s RTP streaming using A or u-law compression in addition to uncompressed 8-bit PCM. The radio units also support extended header information as defined in ED-137. This allows signals like PTT, squelch, RSSI and alarm signals to be transferred in the header of the voice packets. Further information regarding the use of the RTP protocol is available from Jotron upon request. 5.1.3 SIP (Session Initialization Protocol) Refer to chapter 8.2.4.3 and chapter 8.3.4.3 for detailed parameter settings. The SIP protocol is a text based remote control protocol used to automatically initiate voice streaming sessions in the radio. The radio support remote control using SIP as defined in ED-137. Further information regarding the use of the SIP protocol is available from Jotron upon request. 5.1.4 HTTP (Hypertext Transfer Protocol) The radio incorporate a web-server, the web-server uses the HTTP protocol to transfer its information to a connected computer. This allows the web-pages from the radio to be viewed in a standard browser (Microsoft Internet explorer, Mozilla Firefox, Opera, Google Chrome, etc.) by simply typing in the IP address of the radio in the browsers navigation bar (e.g. 10.0.48.31). 5.1.5 Remote control protocol using TCP The TCP remote protocol is a Jotron proprietary protocol available for system integrators. The TCP remote protocol allows advanced remote control of the radios and support reading and writing of objects. In addition the protocol supports subscription to object, this enables the radio to automatically send objects when they are changed or at user defined intervals. Further information regarding the use of the TCP remote protocol is available from Jotron upon request. 5.1.6 VDL mode 2 protocol using TCP The VDL mode 2 protocol is used to send / receive data packets over a VDL mode 2 data link. This protocol is used to connect the radio to a VDL Management entity (VME). Using this protocol allows VDL mode 2 system integrators to control all VDL mode 2 related parameters in the radio. Further information regarding the use of the VDL mode 2 TCP protocol is available from Jotron upon request.

5.1.7 DHCP (Dynamic Host Configuration Protocol) The DCHP protocol is an auto configuration protocol used on IP networks. DHCP allows the IP address of the radio to be configured automatically. The radio must be connected to a network with a DHCP server in order for this function to work. Alternatively, a static IP address can be configured in the radio.

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5.2 Applications using the IP interface 5.2.1 Introduction – IP Configuration and planning On an IP network, all units connected must be set up with a unique IP address. This unique IP address is used by all the other network components to communicate with the unit. A typical address plan for a simple IP based voice or remote control system is shown in the table below. This can be used as a reference to set up a simple system on a dedicated local LAN. If routers are involved, the system will be more complex and the default gateway must be configured in each of the radio unit. Note that systems like Jotron’s RACS (Remote Access and Control System) uses the multicast address of the radio to distinguish various radio sites from each other. I.e. if the radios on site no. 1 use the multicast address 239.0.0.1 to transmit their status, the radios on site no. 2 should use 239.0.0.2 etc. 5.2.2 Controlling a transceiver using a Radio Remote Control (RRC) By using a software based Radio Remote Control (RRC), all signalling, including voice is transferred over the IP network. This simplifies the set-up of the radios and the interconnection between them. The RRC use RTP for voice streaming and SIP to initiate the voice streaming to/from the radios. In addition, the RRC uses the TCP remote control protocol to control the radios. The radios uses 64 kbit/s audio streaming, with RTP headers and control information the total required bandwidth of a voice channel is app. 100 kbit/s. The IP network should be dimensioned to handle at least this bandwidth for each connected radio.

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5.2.3 IP configuration plan Small IP systems is simple in nature. A certain amount of structure is required in the planning/implementation to eliminate network problems. It is important to make a written plan for distribution and use of the IP settings in the system. An example of the IP configuration plan is outlined below and may be used for simple networks. If the network is just set up for maintenance purpose, the RRCs may be omitted. Each site usually has its own sub-net address to separate them from each other.

Unit

RACS PC Service PCs RRC 1 (Radio Remote Control) RRC 2 RRC 3 VHF RX1 VHF TX1 VHF RX2 VHF TX2 UHF RX1 UHF TX1 UHF RX2 UHF TX2

IP address (Address) 10.1.1.10 10.1.1.1519 10.1.1.20

Sub-net mask (Netmask)

Multicast address/ SNMP trap IP

SNMP trap port

255.255.255.0 255.255.255.0

239.0.0.1 239.0.0.1

162 162

255.255.255.0

-

10.1.1.21 10.1.1.22 10.1.1.40 10.1.1.41 10.1.1.42 10.1.1.43 10.1.1.50 10.1.1.51 10.1.1.52 10.1.1.53

255.255.255.0 255.255.255.0 255.255.255.0 255.255.255.0 255.255.255.0 255.255.255.0 255.255.255.0 255.255.255.0 255.255.255.0 255.255.255.0

162 162 162 162 162 162 162 162

239.0.0.1 239.0.0.1 239.0.0.1 239.0.0.1 239.0.0.1 239.0.0.1 239.0.0.1 239.0.0.1

Figure 5-2, Typical IP configuration plan for a simple radio system on a LAN

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5.2.3.1 VoIP system with separate antennas for main and standby

Legend Standard wiring KRONE cross wiring Signal cable RF Coaxial cable Ethernet (LAN/WAN)

Figure 5-3, Main / standby transceiver connected to a RRC (Radio Remote Control)

5.2.3.2 Setup procedure, VoIP using RRC (RTP and SIP) Step

Description

1

Install the units into sub rack and rack as desired.

2

Install the LAN switch as illustrated in the system layout above

3

Connect the units to the LAN switch using Cat5e LAN patch cable or higher as illustrated in the system layout above. Set the IP Address in accordance with the IP-configuration plan. The IP address must be unique for all units in the network. Alternatively, enable DHCP on the radios to automatically acquire the IP address. Set LAN Netmask in accordance with the IP-configuration plan Should be the same for all units in the network. Alternatively, enable DHCP on the radios to automatically acquire the netmask. Set the TCP control port to 3008 (Default)

4

5

6 7

Connect RF cables and antennas as illustrated in the system layout above.

Reference 4.3 5.2.2, 8.2.4.3and 8.3.4.3

5.2.2, 8.2.4.3and 8.3.4.3

8.2.4.3 and 8.3.4.3 Figure 5-3

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5.2.4 Remote Access and Control System over LAN (RACS). RACS is a LAN based Remote Access and Control System for the Jotron series 7000 radios. The system uses the SNMP protocol to remotely monitor the status of the radios. The user of the RACS system is also able to control certain parameters in the radio. The RACS system requires that the radios and the PC containing the RACS application are connected to an IP network. If a network connection is not available between the remote radio site and the remote control position, a modem can be used to transfer the IP packets, as illustrated in the figure below. Please contact Jotron for further details regarding connections between radios and a remote control site. 5.2.4.1 System layout

Figure 5-4, Remote control of radios using RACS

Legend

Jotron AS| TR7750: Operators handbook  4BRemote systems using IP P/N: 84496 (v.E)

Standard wiring KRONE cross wiring Signal cable RF Coaxial cable Ethernet (LAN/WAN)

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5.2.4.2 Setup procedure Step Description 1

Install the units into sub rack and rack as desired.

2

9

Install the LAN switch and modem as illustrated in the system layout above Connect the units to the LAN switch using Cat5e LAN patch cable or higher as illustrated in the system layout above. Set the IP Address in accordance with the IP-configuration plan. The IP address must be unique for all units in the network. Alternatively, enable DHCP on the radios to automatically acquire the IP address. Set LAN Netmask in accordance with the IP-configuration plan Should be the same for all units in the network. Alternatively, enable DHCP on the radios to automatically acquire the netmask. Set LAN SNMP trap IP in accordance with the IP-configuration plan (default is 239.0.0.1 for RACS III) Set LAN SNMP trap port in accordance with the IP-configuration plan (default is 162 for RACS III) Set LAN SNMP trap interval to more than 5 Sec

10

Refer to Equipment manuals for configuration of the CMS system.

3 4

6

7 8

Reference 4.3 5.2.2, 8.2.4.3 and 8.3.4.3

5.2.2, 8.2.4.3 and 8.3.4.3

5.2.2, 8.2.4.3 and 8.3.4.3 5.2.2, 8.2.4.3 and 8.3.4.3 8.2.4.3 and 8.3.4.3 -

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6

Adaptor kit

5.3 Main Distribution Frame (MDF Krone) To ease interfacing to external signals for a transceiver in a 19” sub-rack, receiver and transmitter MDF Krone kits are fitted to the sub-rack. The two MDF Krone boards are attached to the 19” 3U frame with two brackets and 3+3 standard Cat5e LAN signal cables to interconnect the signals from the receiver’s and the transmitter’s AUX1, AUX2 and REM connectors respectively. The complete transceiver kit consists of:

• • • •

2 PCBs with a MDF KRONE connector (20 signals) on each board. 2 Mounting brackets Cat5E interconnecting cables (Standard LAN straight patch cables w/RJ45s) from the transmitter and the receiver to the respective MDF PCB. Labelling

These kits can also be delivered with a combination of transmitters and receivers in the 19” sub-rack.

Attaching bracket

KRONE label

RJ45 signal cables

KRONE connector Figure 6-5, Transceiver connected to MDF Krone adaptor boards

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5.3.1 Transmitter standard wiring The standard wiring consists of a MDF connector board and Cat5E cables that are connected to the radio. Signals and their pin outs are shown below. The MDF board can be installed on a 19” rack frame containing the radios or on a separate position in the 19” rack where many radios are installed in a common rack.

Figure 6-6, Standard wiring of a transmitter to a MDF KRONE connector

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5.4 Receiver standard wiring The standard wiring consists of a MDF connector board and Cat5E cables that are connected to the radio. Signals and their pin outs are shown below. The MDF board can be installed on a 19” rack frame containing the radios or on a separate position in the 19” rack where many radios are installed in a common rack.

Figure 6-3, Standard wiring of a receiver to a MDF KRONE connector

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5.4.1 Transceiver wiring, Main/Standby, 4Wire E&M, ARC, DRC/ORC and ACU Via the MDF Krone interface, it is possible to obtain full control of the radio by proper interface to the radio. The following signals from the radios are used in this configuration: • • • • • • • • •

TX audio line TX ground keying (PTT) TX alarm output TX select input (used for main/standby switching) RX audio line RX squelch output RX alarm output RX Select input (used for main/standby switching) RS-485 remote serial bus

The following units are available from Jotron to perform the required functionality: •

• •

•

ARC – Audio Remote Control. Connects to the radio using 4W audio, PTT, squelch, alarm and select signals. Gives the user the ability to transmit and receive using the remote control, in addition the user has access to main/standby switching and alarm monitoring of the units. Maximum range for the remote control depends on the quality of the copper wires used, but is in the range 200-300 m. ACU – Antenna Changeover Unit. Connects to the radios using the alarm and select signals in addition to the RF signals. Used to automatically or manually switch the antenna between the main and the standby radios. Contains a RF antenna relay to perform the action. DRC – Digital Remote Control. Connects to the radio using the RS-485 remote serial bus. In addition the DRC is powered by the external voltage available on either the radio units or the ARC. Gives the user the ability to change the operating frequency and monitor certain built in test (BIT) signals in the radios. ORC – Operator Remote Control. Connects to the radio using the RS-485 remote serial bus. In addition the ORC is powered by the external voltage available on either the radio units or the ARC. Gives the user the ability to change the operating frequency between pre-stored frequencies in the radio.

For interconnection diagrams with optional equipment connected refer to the next pages.

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5.4.1.1 System layout ARC, DRC with two antennas (main and standby)

Legend Standard wiring KRONE cross wiring Signal cable RF Coaxial cable

KRONE connector Figure 6-4, Main/Standby transceiver connected to ARC and DRC/ORC via MDF Krone

5.4.1.2 System layout ARC, DRC/ORC with one antenna + ACU

Legend Standard wiring KRONE cross wiring Signal cable RF Coaxial cable

KRONE connector

Figure 6-5, Main/Standby transceiver connected to ARC, DRC/ORC and ACU via MDF Krone

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5.4.1.3 Detailed wiring diagram ARC, DRC/ORC + ACU using MDF Krone

Figure 6-6, Wiring diagram main/standby transceiver connected to ARC, DRC/ORC and ACU via MDF Krone

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5.4.1.4 Setup procedure – Control using ARC, DRC/ORC, ACU

Step

Description

1

Install the units into sub rack and rack as desired.

2

Install standard MDF Krone wiring harness, and power to each unit

3

Inter-wire signals in according with the cross wiring drawing below

4

Set Mute on transmit to enabled (receivers) – if desired

5

Set Audio input source to line (transmitters)

6

Set Audio output source to Lineout (receivers)

7

Set Keying source to include txkeygnd

8

Set Alarm config, Alarm pin pullup to Enabled (default)

9

Set Alarm config, Select polarity to Low (default)

10

Set the main transmitter and receiver Operation mode to Main

11

Set the backup transmitter and receiver Operation mode to Norm (default) Set RS485 Bitrate to 1200 b/s for transmitters and receivers

12 13

14 15 16

Set RS485 Address to 1 for the Main receiver, 2 for the Main transmitter, 3 for the Standby receiver and 4 for the Standby transmitter. Set the RS485 Protocol to Legacy Connect RF cables and antennas as illustrated in the system layout above. Refer to Equipment manuals for configuration of remote units.

Reference 4.3 6.1.1 and 6.1.2 8.3.4.2 8.2.4.2 8.3.4.2 8.2.4.2 8.2.4.3 and 8.3.4.3 8.2.4.3 and 8.3.4.3 8.2.4.1 and 8.3.4.1 8.2.4.1 and 8.3.4.1 8.2.4.3 and 8.3.4.3 8.2.4.3 and 8.3.4.3 8.2.4.3 and 8.3.4.3 Figure 6-5 -

Table 6.1, Set up procedure transceiver main/standby connected to ARC, DRC/ORC + ACU

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5.4.2 Transceiver wiring, Main/Standby, 4Wire E&M, VCCS and ACU Via the MDF Krone interface, it is possible to connect all required signals towards a Voice Control and Command System (VCCS). In addition an antenna changeover unit is used in this configuration to control main/standby switching manually or automatic. • • • • • • • • •

TX audio line TX ground keying (PTT) TX alarm output TX select input (used for main/standby switching) RX audio line RX squelch output RX alarm output RX Select input (used for main/standby switching) Ethernet (LAN) interface

5.4.2.1 System layout

To VCCS KRONE connector Figure 6-7, Main/Standby transceiver connected to an ACU + VCCS via MDF Krone Legend Standard wiring KRONE cross wiring Signal cable RF Coaxial cable

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5.4.2.2 Detailed wiring diagram transceiver + ACU using MDF Krone

Figure 6-8, Main/Standby transceiver connected to an ACU + VCCS via MDF Krone

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5.4.2.3 Setup procedure, main/standby transceiver connected to an ACU + VCCS Step

Description

1

Install the units into sub rack and rack as desired.

2

Install standard KRONE wiring harness, and power to each unit

3

Inter-wire signals in according with the cross wiring drawing below

4

Set Mute on transmit to enabled (receivers) – if desired

5

Set Audio input source to line (transmitters)

6

Set Audio output source to Lineout (receivers)

7

Set Keying source to include txkeygnd (or other if required)

8

Set Alarm config, Alarm pin pullup to Enabled (default)

9

Set Alarm config, Select polarity to Low (default)

10

Set the main transmitter and receiver Operation mode to Norm

11

Set the backup transmitter and receiver Operation mode to Norm (default) Connect RF cables and antennas as illustrated in the system layout above. Refer to Equipment manuals for configuration VCCS.

12 13

Reference 4.3 6.1.1 and 6.1.2 8.3.4.2 8.2.4.2 8.3.4.2 8.2.4.2 8.2.4.3 and 8.3.4.3 8.2.4.3 and 8.3.4.3 8.2.4.1 and 8.3.4.1 8.2.4.1 and 8.3.4.1 -

Table 6.2, 4Wire E&M, VCCS and ACU

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5.4.3 Transceiver, Main / Standby, 4Wire +E&M, APM, ARC and DRC This system illustrates the use of a pair of Audio and PTT modems (APM) using the MDF Krone interface. The APM gives the system the ability to transfer PTT, squelch and alarm signals as in-band tones between the radio site and the operator site. • • • • • • • • •

TX audio line TX ground keying (PTT) TX alarm output TX select input (used for main/standby switching) RX audio line RX squelch output RX alarm output RX Select input (used for main/standby switching) RS-485 remote serial bus

The following units are available from Jotron to perform the required functionality: •

•

•

•

ARC – Audio Remote Control. Connects to the radio using 4W audio, PTT, squelch, alarm and select signals. Gives the user the ability to transmit and receive using the remote control, in addition the user has access to main/standby switching and alarm monitoring of the units. Maximum range for the remote control depends on the quality of the copper wires used, but is in the range 200-300 m. DRC – Data Remote Control. Connects to the radio using the RS-485 remote serial bus. In addition the DRC is powered by the external voltage available on either the radio units or the ARC. Gives the user the ability to change the operating frequency and monitor certain built in test (BIT) signals in the radios. ORC – Operator Remote Control. Connects to the radio using the RS-485 remote serial bus. In addition the ORC is powered by the external voltage available on either the radio units or the ARC. Gives the user the ability to change the operating frequency between pre-stored frequencies in the radio. APM – Audio PTT Modem. Allows the use of in-band signalling to transfer squelch, PTT and alarm signals between the operator and the radio site. In addition, the remote APM unit contains an antenna switchover relay to switch the antenna between the main and the standby radio units.

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5.4.3.1 System Layout

Legend Standard wiring KRONE cross wiring Signal cable RF Coaxial cable Ethernet (LAN/WAN)

KRONE connector Figure 6-9, Main/Standby transceiver using remote ARC, DRC/ORC and APMs.

5.4.3.1 Detailed wiring diagram transceiver + APM using MDF Krone

Figure 6-10, Main/Standby transceiver using remote ARC, DRC/ORC and APMs, wiring.

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5.4.3.2 Setup procedure Step

Description

1

Install the units into sub rack and rack as desired.

2

Install standard KRONE wiring harness, and power to each unit

3

Inter-wire signals in according with the cross wiring drawing

4

Set Mute on transmit to enabled (receivers) – if desired

5

Set Audio input source to line (transmitters)

6

Set Audio output source to Lineout (receivers)

7

Set Keying source to include txkeygnd

8

Set Alarm config, Alarm pin pullup to Enabled (default)

9

Set Alarm config, Select polarity to Low (default)

10

Set the main transmitter and receiver Operation mode to Norm

11

Set the backup transmitter and receiver Operation mode to Norm (default) Set RS485 Bitrate to 1200 b/s for transmitters and receivers

12 13

14 15 16

Set RS485 Address to1 for the Main receiver, 2 for the Main transmitter, 3 for the Standby receiver and 4 for the Standby transmitter. Set the RS485 Protocol to Legecy Connect RF cables and antennas as illustrated in the system layout above. Refer to Equipment manuals for configuration of remote units.

Reference 4.3 6.1.1 and 6.1.2 Figure 6-9 8.3.4.2 8.2.4.2 8.3.4.2 8.2.4.2 8.2.4.3 and 8.3.4.3 8.2.4.3 and 8.3.4.3 8.2.4.1 and 8.3.4.1 8.2.4.1 and 8.3.4.1 8.2.4.3 and 8.3.4.3 8.2.4.3 and 8.3.4.3 8.2.4.3 and 8.3.4.3 Figure 6-8 -

Table 6.3, 4Wire +E&M, ARC, DRC/ORC and ACU

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5.5 Legacy wiring adaptor board – P/N 82715 (optional) When replacing an analogue TR-75xx transceiver with the new digital TR77xx transceiver, the Legacy wiring adaptor board may be installed to use the existing connectors used for the TR-75xx radio to connect directly with the new radio. The board contains the wiring between the connectors and also performs required signal conversion between the two interfaces. Signal conversion consists of inverting the receiver mute signal and to convert some output to a non polarized relay output. The legacy wiring adaptor board is fitted to the rear of the sub-rack. The complete adaptor kit for a transceiver consists of: 2 Wiring adaptor boards (PCBs) with 2 D-sub connectors on each board. Cat5e signal cables (Standard ethernet straight patch cables w/RJ45s) from the transmitter and receiver to the respective adaptor board. The kit may be used on a transceiver, transmitter or a receiver. The transmitter and receiver part of the kit is completely independent. 5.5.1 Configuration of the interface board The interface board needs to be configured for the correct usage. The configuration is done by setting the links on the board to the correct position. •

• •

Alarm pull-up. This link defines whether a pull-up is enabled for the alarm output or not. Normally this is set to on (default for RA7202 and TA74xx) this enables the +12v pull-up signal. In order to get the alarm/select functionality between two units to function, this must be set to ON. RS232 / RS485. Select whether the interface to the radios are done using RS-232 or RS-485. In most legacy systems, RS-485 is used. Tx / Rx mode. These links defines whether the radio connected to the board is a transmitter or a receiver.

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5.5.2 Radio Configuration The radios are set up to be compatible with the interface by default. Below is a table showing the parameters that are required in order for the interface board to operate satisfactory. Menu path: TX/RX config > Interface config ► Alarm config Alarm config RS485 RS485 RS485

Parameter

Details

Alarm pin Set to “Enabled” pullup Select Set to “Low to select” polarity Protocol Set to “Legacy” Bitrate Set to 1200 or 9600 b/s depending on remote equipment Address Set to the same address as the radio being replaced Figure 6-7, Common setup (RX and TX) to use legacy interface board

Menu path: RX config ► Squelch Squelch

Menu path: TX config ► Keying

Keying

Parameter

Details

RxBusy Set to “Open on Busy” output SqOut Set to “Closed when busy” output Figure 6-8, Receiver setup to use legacy interface board

Parameter

Details

Source

Set to the correct keying type used in the installation: TxGnd – similar to GndKey on TA74xx TxKey – Similar to RemKey on TA74xx Line – Enable only if “A”, “B” or “C” keying is used on TA74xx. Loop key Set to “Floating” if line key is not used. bias If “A”-key is used on the TA74xx, set to “floating”. If “B”-key is used, set to “+12V”. If “C”-key is used, set to “Ground”. Figure 6-9, Transmitter setup to use legacy interface board

5.5.3 Limitations 5.5.3.1 Receiver: • The AGC voltages out from the RA7202 and RA7203 are different. The maximum output from the RA7203 is 4V and the maximum output signal from the RA7202 is 2.5V. Because of this, voting between a new and an old radio is not possible. • AC/DC out is not implemented on RA7203. Instead AGC_HI/LO_N from the RA7203 is available on this pin (Pin 4 of on 15 pin D-sub). • Pin 3 on the 15 pin D-sub connector was not in use by the RA7202. AGC_HI/LO_P from RA7203 has been made available on this pin.

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6 Advanced radio functions and recommended settings 6.1 Introduction

This chapter gives additional and supplementary information regarding some of the settings in the radio. Some of the settings explained in this chapter are dependent on several settings, a dependency that may not be immediately obvious.

6.2 Transmitter

LINE SENSITIVITY (-20 dBm)

100

MODULATION % (85%)

m dB 0 L: LV T

M AX

IN

PU

T IN PU

40

M AX

IN PU

T

LV

LV

L:

60

L:

-2 0

-1 0

dB

dB

m

m

80

M AX

MODULATION (%)

6.2.1 VOGAD function and use -TX Voice Operated Gain-Adjusting Device (VOGAD), is an automatic gain control for the line input and the microphone input. The VOGAD ensures that the maximum modulation is constant regardless of the level of the input signal and it prevents the transmitter from being overmodulated. The VOGAD circuit has a fast attach time to ensure that peaks in the audio input is not overmodulating the transmitter and it has a slower decay time to prevent background noise from being boosted during gaps in the input speech signal. There are several settings that are relevant for the VOGAD function in the transmitter, all are located under the “Tx Config/Audio” sub-menu. The “Modulation %” setting adjusts the maximum modulation. This setting is used both to set the maximum level that the VOGAD circuit will modulate the radio transmitter, and in addition it sets the clipping level of the transmitter. The “Mic sensitivity” / “Line sensitivity” settings set at which minimum input level full modulation is obtained. Audio inputs above this level will be modulated with the full modulation, while lower input signal will linearly give lower modulation on the RF output signal. Setting of the line sensitivity will depend on the nominal input signal. It should be set at least 10 dB below the nominal input signal to ensure full modulation for all operators. Setting the sensitivity to low will result in background noise being boosted in silent periods. The mic sensitivity setting depends on the microphone being used.

VOGAD REGULATION REGION

20

0 -40

-30

-20

-10

0 +10 LINE AUDIO LEVEL (dBm)

Figure 7-1, VOGAD REGION AND MODULATION VS AUDIO LEVEL

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6.2.2 Line mute level The “Line mute Level” when enabled (default OFF) is used primarily for systems where there are large gaps or silent periods in the speech signal. Specifically this may be the case for automatic voice transmissions (VOLMET or ATIS). Setting the Line mute level prevents background noise from being modulated when it is below the mute level set and the result is an output signal that will be more pleasant to listen to for the users. 6.2.3 Frequency Offset (Option) Frequency offset is optionally available for both 25kHz and 8.33 kHz channels. Offset frequencies are available for 2,3,4 and 5 channel offsets and the offset frequencies follows the definitions given in ICAO annex 10: Channel 25kHz 25kHz 25kHz 25kHz 8.33kHz

No. Tx sites 5 4 3 2 2

Tx1 -8.0 -7.5 -7.3 -5.0 -2.5

Tx2 -4.0 -2.5 0 +5.0 +2.5

Tx3 0 +2.5 +7.3

Tx4 +4.0 +7.5

Tx5 +8.0

(Offset in kHz) Table 7-1, Offset frequencies for 2,3,4 and 5 channel offset (offset in kHz)

Note, when using 5 channel offset, the operating temperature range is currently limited to 0 to 40°C when using the standard TCXO in the radio. 6.2.4 In-band PTT signalling (Option in-band) In-band signalling is optionally available in the transmitter unit. The in-band signalling is configurable for the user with regards to the in-band frequency and the trigger level. When available, the settings for in-band signalling are available under the “TX config/key” submenu. The transmitter will automatically insert a notch filter in the audio path and enables a narrow band signal detector at the selected in-band frequency. This prevent the in-band tone from being transmitted and ensures that the transmitter is keyed as long as the tone is present. The in-band frequency is selectable between 2000 and 4000 Hz and the detection level is configurable in the range -40 to -10 dBm. See chapter 8.2.3.2 for details on how to configure these parameters.

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6.3 Receiver 6.3.1 Squelch system The RA-7203 receiver incorporates a squelch system that consists of a signal/noise (S/N) squelch and a squelch that simply detects the level of the signal. Any combination of the two systems can be used, making it suitable to detect intelligible signals at maximum range and at the same time block out on-channel interference from co-located transmitters operating in and out of the operational band of the radio. 6.3.1.1 Squelch: Recommended settings Refer to Figure 7-3 for an illustration of the settings. For longest range performance without interference from collocated transmitters or carrier override function (default setting): 1. Set “Sq setup” to “Level OR S/N”. 2. Set “S/N SQ level” to 10 dB S/N. 10 dB S/N will be a signal of moderate quality, if set below 10 dB the audio quality may be harder to intelligibly understand. 3. Set “SQ override lvl” to the wanted override level, e.g. 20 dBuV (-87 dBm). The radio will now be un-muted (squelch open) for any received signal that has an S/N level higher than 10 dB@30% modulation (or >26.5 C/N see above). The squelch will open on any signal that is above -87 dBm regardless of the signal quality. For signals levels above a fixed threshold, with guaranteed S/N performance 1. Set “Sq setup” to Level AND S/N 2. Set the “S/N SQ level” to the wanted threshold, e.g. 10 dB 3. Set the “SQ override lvl” to the wanted threshold, e.g. -101 dBm The radio will now be un-muted (squelch open) for any received signal that has an S/N level higher than 10 dB@30% modulation (or >26.5 C/N see above) and where the signal level is at least above -101 dBm. This setting prevents nearby (collocated) transmitters from opening the squelch and guarantees that the signal has both a certain S/N quality and are at a certain level. For longest range performance without interference from collocated transmitters: 1. Set “Sq setup” to “S/N”. 2. Set “S/N SQ level” to 10 dB S/N. 10 dB S/N will be a signal of moderate quality, if set below 10 dB the audio quality may be harder to intelligibly understand. The radio will now be un-muted (squelch open) for any received signal that has an S/N level higher than 10 dB@30% modulation (or >26.5 C/N see above). The squelch will not open based on interference from nearby (collocated) transmitters. For longest range performance – squelch may open at noise only: 1. Set “Sq setup” to Level only. 2. Adjust the “SQ override lvl” until noise is heard in the speaker, and then increase the level by 3 dB. Note. This adjustment must be done after the receiver is installed on the site with the antenna connected. The noise level may vary during the day and it may be required to adjust the trigger level higher than 3 dB. Jotron AS| TR7750: Operators handbook  5BAdvanced radio functions and recommended settings P/N: 84496 (v.E)

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The radio will now be un-muted (squelch open) for any received signal that has a signal strength higher than 3 dB above the background noise. Annoying squelch openings may occur if there are nearby (collocated) transmitters. 6.3.1.2 Details regarding the squelch system to use There are 4 different settings for the squelch system to use. The selection is done under the “Rx Config” settings by selecting “Sq setup”. The various settings are explained below. Default setting for the “Sq setup” is “Level OR S/N”. • Level This setting selects that the radio receiver will be un-muted for any signal that is above the level set by the “Sq override lvl”. The level squelch will not discriminate between wanted and unwanted signals caused by on-channel interference, but will simply react to any signal that is above the threshold. This setting is not recommended unless the receiver is located on a site with no onchannel interference (no nearby transmitters). • S/N This setting select that the radio receiver will be un-muted for any signal where the signal/noise (S/N) ratio is above the limit set by the “S/N SQ level”. Note that the S/N level that is set is the level that will be obtained by a 30% modulated reference signal. Thus a setting of “10 dB” will be the level that is achieved with an RF signal, modulated with 30% at a certain signal strength. The RF level where the S/N squelch triggers will not be affected by varying modulation levels (see below for further explanation) • Level OR S/N With this setting the radio receiver will be un-muted if either the level squelch or the S/N squelch is triggered. This is the default setting in the radio. This setting is useful to take advantage of the S/N squelch function, and in addition have the security that the squelch will open if the signal is large enough (carrier override). • Level AND S/N With this setting both conditions need to be fulfilled before the receiver is un-muted. I.e. the receiver squelch does not open until the received signal both has the required level and it has a certain quality. 6.3.1.3 Details regarding the functionality of the Signal/Noise (S/N) Squelch The signal/noise squelch or actually the carrier/noise (C/N) squelch system is incorporated in the digital audio processing part of the radio receiver. The input signal is examined for signals within and outside the operating channel. A wanted signal will have its predominant part of the energy within the operating channel, while unwanted noise generated by collocated transmitters will span several channels with broadband (white) noise. In this way it is possible for the digital audio processing system to determine if the signal is a wanted (on-channel) or an unwanted signal (noise). It is also possible to calculate the carrier / noise level of the signal and determine if the S/N squelch should trigger or not. To make it easier to adjust, the adjustment of the S/N squelch in the menu is done for a reference signal that is modulated with a 30% audio signal. The relative difference between the carrier level and the audio sidebands for a 30% signal is 16.5 dB. I.e. a setting of 10 dB S/N actually reflects a

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carrier/noise level of app. 26.5 dB, in other words, a setting of 10 dB S/N means that the S/N squelch will trigger when the C/N level of the receiver is above 26.5 dB. This means that the setting of the S/N squelch is independent of the actual modulation level of the incoming signal and will always trigger when the carrier/noise level is above 26.5 dB. A receiver that has a sensitivity of 10 dB S/N@-107 dBm, 30% modulation will trigger at -107 dBm if there is no background noise that masks out the incoming signal (lab environment). For practical installations, the background noise is usually higher, meaning that a larger input signal is required before the squelch triggers. Using the S/N squelch feature allows the squelch to be adjusted once and it will automatically adjust itself to various operating environments. It will even adapt to various operating conditions that may occur during a day. The range for the S/N squelch is 5 to 20 dB (@30%), which corresponds to a C/N between 21.5 and 46.5. In a silent operating environment this equals levels between -112 and -97 dBm.

Figure 7-2, Relation between S/N and C/N for a -107 dBm, 30% modulated signal with 10 dB S/N

6.3.1.4 Details regarding the Level squelch (Carrier override) The carrier level squelch is a simpler variant of a squelch system. The level squelch operate strictly on the signal strength and will open when the level detected on the channel reaches its preset value. This occurs independently of the content of the signal and if it is an intelligent signal from a distant transmitter, or simply noise generated by nearby transmitters. It might be advantageous to use the level squelch combined with the S/N squelch in order to ensure that the receiver opens at a certain level, even if the content of the received signal is distorted. A signal from sources like Emergency Location Transmitters (ELTs) uses a modulation method that creates a very broadband audio signal. These signals does sometimes have a character that allows them to be detected by a level squelch only, therefore on systems that operates on the emergency channels (121.5, 243 MHz), the level squelch should always be enabled (Level OR S/N) to ensure safe detection of all emergency signals. Jotron AS| TR7750: Operators handbook  5BAdvanced radio functions and recommended settings P/N: 84496 (v.E)

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Figure 7-3, Illustration of squelch S/N and squelch override settings

6.3.2 In-band Squelch signalling (Option) The receiver may include in-band squelch signalling as an option. The in-band signalling is configurable with regards to signalling frequencies and levels. By using the in-band option it is possible to set one tone (user configurable) to signal that the squelch is open and another tone to signal that the squelch is closed. When available, the settings for in-band signalling are available under the “RX config/Squelch” submenu. The receiver will automatically insert a notch filter in the audio path and generate a tone on the selected in-band frequency. The in-band frequency is selectable between 300 and 5000 Hz and the levels are configurable in the range -60 to -10 dB. Note that the in-band level is given as a relative value below the Line output level. See chapter 8.3.3.2 for details on how to configure these parameters.

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7 Operating Instructions 7.1 Introduction To set up the transmitter and the receiver units, several parameters may be set from the front panel to tailor the unit for numerous applications. This section details the parameters that are available from the unit front panel and explains the use of each parameter. The radio units contains no manual adjustments or switch settings. All parameters can therefore be set from the front panel or using one of the remote protocols. There are 4 access levels that can be selected to limit the user access to certain parameters. The local user levels can be set using one of the remote protocols or using a special “key” to unlock the radio (see chapter 3.1.6 and 3.3.5). There is also a way to override the user levels, described in the technical manual. The user access levels are: • Restricted

Limits front panel operation to selecting preset channels and adjusting local audio output levels and display appearance. Use this level when the radio units are used from a remote position or in cases where the user should be restricted to use preset channels only (1 – 100).

• Operator

Same as restricted, but in addition the local user has full access to the operating frequency (store and recall).

• Technician

This level gives the local user access to the most used installation specific parameters (line levels, output power, etc.) and should be used when installing or maintaining the radio units.

• SysOp

This level gives unlimited access to all parameters within the radio units and should be used by system experts are when the radios are located in a building with restricted access.

In the following section, these symbols and abbreviations are used to explain navigation in menus / setting of values: • Scroll/Select switch = • Navigation button A (left button) = • Navigation button B (middle button) = • Navigation button C (right button) = • Clockwise = CW • Counter Clockwise = CCW

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Note on frequency setting. The frequency is displayed according to the procedure described in ICAO annex 10. This is a way of setting the frequency in a mixed 8.33 and 25 kHz environment. The frequency displayed does not always reflect the actual transmit or receive frequency but is the frequency used to orally communicate the frequency between controllers and pilots. Jotron radios automatically adjust to the correct bandwidth when setting a frequency as outlined in the table below:

Display

118.000 118.005 118.010 118.015 118.025 118.030 118.035 118.040 118.050 118.055 118.060 118.065 118.075 118.080 118.085 118.090 118.100 ………. 136.975 136.980 136.985 136.990

Actual Bandwidth frequency [kHz] [MHz] 118.000 25 118.0000 8.33 118.0083 8.33 118.0167 8.33 118.025 25 118.0250 8.33 118.0333 8.33 118.0417 8.33 118.050 25 118.0500 8.33 118.0583 8.33 118.0667 8.33 118.075 25 118.0750 8.33 118.0833 8.33 118.0917 8.33 118.100 25 ……… …….. 136.975 25 136.9750 8.33 136.9833 8.33 136.9917 8.33

Table 8-1, Frequency setting 8.33 and 25 kHz channels

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7.2 Transmitter 7.2.1 User menu – Transmitter (Restricted access level) Main display window in restricted mode. Display

Description When the transmitter is switched on, it will show the frequency and the operation mode (AM).

Press to navigate to the channel recall screen. Select any channel (up to 100) that is previously stored in the radio by rotating . Recall selected channel with If no channel is stored, the display will show: CH: No channels Press to navigate to the audio output level screen. This setting adjusts the audio level output at the front panel microphone/headset connector. Rotate CW or CCW to adjust the headset level. Press to navigate to the display intensity adjust screen. This setting adjusts the intensity of the display and LED indicators. Rotate CW or CCW to adjust the intensity. Press

to return to the default screen

Pressing from the main display will bring up the menu options available for the current user level.

Menus for user level: Restricted For details regarding submenus, refer to chapter 5.4. Table 8-2, User menu selections transmitter - restriced access level

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7.2.2 User menu – Transmitter (Default access level) Main display window for user levels: Operator, Technician and SysOp. Display Description When the transmitter is switched on, it will show the frequency and the operation mode (AM).

Press to navigate to the channel recall screen. Select any channel (up to 100) that is previously stored in the radio by rotating . Recall selected channel with If no channel is stored, the display will show: CH: No channels Press to navigate to the audio output level screen. This setting adjusts the audio level output at the front panel microphone/headset connector. Rotate CW or CCW to adjust the headset level. Press to navigate to the set frequency screen. Use and to adjust the frequency steps. Rotate CW or CCW to select a new frequency. Confirm new frequency with or . Press to navigate to the channel store screen. Select channel number by rotating CW or CCW. Confirm with or . If the channel is already programmed, the channel may be cleared using Press to navigate to the display intensity adjust screen. This setting adjusts the intensity of the display and LED indicators. Rotate CW or CCW to adjust the intensity. Press

to return to the default screen

Table 8-3, User menu selections transmitter- Operator, Technician and SysOp access levels

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7.2.3 Settings, information and configuration menus – Transmitter Under the menu selection from the user menu, several submenu groups are available depending on the user level. The submenus and details for them are shown in the tables below. Submenu

Access level

Description

Section

Radio control

►

SysOp, Technician

Access to operation mode, low power level, climax offset parameters, modulation and standby settings.

8.2.3.1

TX config

►

SysOp

Access to configuration parameters for modulation, audio settings, key (PTT) settings and internal calibration settings.

8.2.3.2

Access to configuration parameters for the ethernet interface, RS232 port, RS485 port, various pin 8.2.3.3 settings on the hardware interface (remote connectors) and the user access level.

Interface config ►

SysOp

Bite system

►

SysOp, Technician

Displays information about active alarms and gives the user access to internal measurements.

8.2.3.4

System info

►

All

Displays information about the firmware and hardware release, system up-time and radio identification

8.2.3.5

Table 8-4, Submenus available on the transmitter

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7.2.3.1 Radio control group - TX SysOp and Technician access levels.

Menu Radio Control Operation Mode (Refer to section 7.2.4.1 for details) Set the radio to act as ”Main” or ”Normal” radio Low power level

(Refer to section 7.2.4.1 for details) Set the low power level for the transmitter

AM Climax Offset (Optional) (Refer to section 7.2.4.1 for details) Set the AM offset frequency for “Climax” operation

Modulation

(Refer to section 7.2.4.1 for details) Choose between available modulation types (AM, FM, VDL etc.)

Alarm (Refer to section 7.2.4.1 for details) Force the radio into alarm state (for test) Standby (Refer to section 7.2.4.1 for details) Force the radio into standby state (for test)

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7.2.3.2 TX config group - TX SysOp access level.

Menu TX config AM (Refer to section 7.2.4.2 for details) Set parameters for AM operation. Power output and % modulation

Audio (Refer to section 7.2.4.2 for details) Set parameters for Audio in/out, sensitivity, Audio source, Tone generator etc.

Keying (Refer to section 7.2.4.2 for details) Set parameters for key input, In-band keying, Key source, levels, timeout etc.

Calibrate (Refer to section 7.2.4.2 for details) Calibrate the reference oscillator

VDL mode 2 (Optional) (Refer to section 7.2.4.2 for details) Set parameters for VDL mode 2 operation. Power output, data source etc.

Factory preset (Refer to section 7.2.4.2 for details) Resets the radio to factory pre-set values Figure 8-1, TX config group, transmitter

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7.2.3.3 Interface config group - TX SysOp access level.

Menu Interface config Access control (Refer to section 7.2.4.3 for details) Set the user access level for local poeration

Language (Refer to section 7.2.4.3 for details) Set the menu language for local operation

Alarm config (Refer to section 7.2.4.3 for details) Set pull-up for the external alarm pin and polarity for the select signal RS485 (Refer to section 7.2.4.3 for details) Set parameters for RS485 serial communication. Bit rate, protocol and address RS232 (Refer to section 7.2.4.3 for details) Set parameters for RS232 serial communication. Bit rate and protocol LAN (Refer to section 7.2.4.3 for details) Set parameters for the Ethernet (IP) communication, traps and VoIP IPv6 (Refer to section 7.2.4.3 for details) Set parameters for the IP version 6, static IP, DHCP and Linklocal Rack (Refer to section 7.2.4.3 for details) Set parameters for to identify the physical radio location. Rack number, row etc. Figure 8-2, Interface config group, transmitter

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7.2.3.4 Bite system group - TX SysOp and Technician access levels.

Menu Bite system Alarms (Refer to section 7.2.4.4 for details) Display active alarms. Identifies modules and parameter with failure

Alerts (Refer to section 7.2.4.4 for details) Display active alarms. Identifies modules and parameter with failure

Measurements (Refer to section 7.2.4.4 for details) Display Bite measurements. Voltages, currents, lock detect etc.

Figure 8-3, Bite system group, transmitter

7.2.3.5 System info group - TX All access levels.

Menu System info (Refer to section 7.2.4.5 for details) ID, firmware and hardware release information. Radio Up-time

Figure 8-4, System info group, transmitter

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7.2.4 Parameter details – Transmitter 7.2.4.1 Radio control group - TX TX-Menu path: Parameter Main/Radio control ►

Range

Default Details

Operation mode

Main | Norm

Norm

Low power level

30 – 41 dBm 1 dB steps

41 dBm

AM climax offset (option offset)

-8.0, -7.5, -7.3, -5.0, -4.0, -2.5, 0 +2.5, +4.0, +5.0, +7.3, +7.5, +8.0

0 kHz

Modulation

AM

Alarm

AM, (AMMSK, VDL2 optional) On | Off

Standby

On | Off

Off

Off

A main radio will enter into standby if an alarm is detected by the internal BITE system. A norm radio will continue operation (if possible) even if a failure is detected. In a main / standby configuration, the main radio is set to Main and the standby radio is set to Norm. When correctly wired the control can then automatically be transferred to the standby radio by using the available alarm output and select input on the radios. Set the low power level of the. The low power level is the output power of the transmitter when the transmitter is set to low power, either by an alarm state, command or by an external input signal. 30 dBm corresponds to 1W output, 41 dBm is 12W ouput. Set the frequency that the output carrier will be offset with in offset carrier setup. These offset frequencies are in accordance with ICAO annex 10. For 8.33 kHz operation, only -2.5 and +2.5 kHz are available. Select the modulation type / waveform to use. This setting force the radio into alarm state (forced alarm) if set to On. Used for testing, or to force a radio into alarm in order to switch to the backup (standby) radio. This setting force the radio into standby state (forced standby) if set to On. Used to manually set a radio to standby.

Table 8-5, Radio control group, transmitter

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7.2.4.2 TX config group - TX TX-Menu path: Main/ TX config ► AM ►

Audio ►

Parameter

Range

Default

Details

Output power

30 – 47 dBm 0.1 dB steps

47 dBm

Modulation %

10 – 95 % 1% steps Auto | Line | Mic | Modgen | VoIP

85 %

Set the output power.. Max. level depends on radio model and is:  47 dBm for TA7650  44 dBm for TA7625  40 dBm for TA7610 Set the modulation degree for AM operation.

Input source

Auto

(Availability of certain choices depends on option enabled)

Mic sensitivity

-40 to 0 dB 1 dB steps

-21 dB

Line sensitivity

-40 to 0 dBm 1 dB steps

-22 dBm

Line termination

OFF | 600 ohm

600 ohm

Line mute level

OFF or -40 to -10dBm 1 dB steps

OFF

Monitor output

Headphone, Monitor line, VoIP

Headphone, Monitor line

Monitor level

(Availability of certain choices depends on options enabled) -80 to +10 dB

-0 dB

The input source determines from where the audio is applied to the transmitter.  Auto: Uses line input from any of the another input sources that keys the radio(Line, Mic. or VoIP [ED137])  Line: Uses the 600 ohm line interface as the audio source  Mic: Uses the microphone input as the audio source  VoIP: Uses the IP interface as the audio source.  Modgen: Uses the internal modgen as audio input source – se also Modgen frequency Set the gain (VOGAD sensitivity) for the microphone connected to the front panel connector. Use this setting to increase or decrease the gain if needed. Setting depends on microphone used. Set the VOGAD sensitivity of the 600 ohm line input. This setting determines where the VOGAD (automatic gain control) start to operate. Thus if it is set to -22 dBm, levels above -22 dBm will be modulated with 85% (default setting). For levels below -22 dBm the modulation will decrease linearly. Set the termination of the input line to either OFF or 600 ohm. Normally this is set to 600 ohm, but should be set to OFF on one of the radios, if two transmitters audio lines are connected in parallel. This is to maintain the 600 ohm impedance on the lines. Below this level, the line input will be muted. Used where noisy lines are connected to the transmitter to avoid unnecessary noise on the produced RF signal during periods of silence (Automatic transmissions; VOLMET, ATIS) Set where the monitor output signal and the received audio (if a receiver is connected) is routed. Can be set to the headset connector, the 600 ohm monitor line output or both. The TX monitor signal is the demodulated signal detected on the output of the transmitter. Set the output level of the monitor signal, relative to input TX demodulated signal. Only applicable when the radio is keyed.

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TX-Menu path: Main/ TX config ►

Keying ►

Parameter

Range

Default

Details

VOGAD

Off, x-fast, fast, norm, slow, xslow

Norm

Modgen frequency

100 to 5000 Hz 1 Hz steps

1000 Hz

Line=>Head gain

-10 to +20 dB

10 dB

Source

Mic, Line, Txkey, Txgnd, Inband

Mic, Txkey, Txgnd

Set the attack and decrease time of the automatic gain control (VOGAD).  Off is used only for maintenance purposes. Set the frequency of the internal modulation generator. Used in conjunction with the Audio input source for test porpose. Defines the scaling factor (from the RX input) of the Rx Audio on the headset output when the transmitter is connected to a receiver. Determines what signal that will be used as the source for keying the transmitter. Any combinations can be set if required.  Mic: Local PTT input from a microphone, where the PTT is connected to pin 4 and 8(gnd) on the Mic/headset connector.  Line: Keying from a phantom signal on the line input. Pin 3 and 6 on the REM connector.  Txkey: The transmitter is keyed by an external voltage on the TXKEY_P and TXKEY_N input pins. Signals located on Pin 7 and 8 on the | connector.  Txgnd: The transmitter is keyed by a signal on the TXKEY_G input pin Signals are located on Pin 4 and 8 (gnd) on the REM connector.  Inband: The transmitter is keyed using an in-band tone (see also in-band frequency and in-band sensitivity).

(Availability of certain choices may depend on options enabled)

Inband frequency (option In-band)

2001 – 3999 Hz 1 Hz steps

2040

Inband trig level (option In-band)

-40 to -10 dBm

-30

TX Timeout

000 | 5-300 s 5s steps

000s (Off)

Do not enable sources that are not in use. Set the frequency to be used for the in-band tone that will be used to key the transmitter. By selected the tone frequency, the transmitter will automatically calculate the audio notch filter to use an insert this into the audio path to filter out the keying tone. Applicable to the line interface input only. The level of the tone used to key the transmitter on the 600ohm input line. The value is given in dBm (absolute level related to 600 ohm). Values above the limit will key the transmitter. Set the timeout for the key signal. If the PTT is pressed longer than this timeout, the transmitter will automatically stop transmitting. The transmitter will automatically reset the timer when the key signal is released.

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TX-Menu path: Main/ TX config ►

Parameter

Range

Default

Details

RF delay

0 – 200 ms

0 (OFF)

Loop key bias

Ground, +12V, Floating

Floating

This setting delays the RF output after keying signal is applied. It is used when the transmitter is RF-connected to external equipment such as T/R relays(ACU), power amplifier or other equipment that includes RF switchover relays. Since the RF switching in the transmitter is done electronically, the RF is produced in less than 20ms (Keying delay) after the PTT signal is detected. It could be harmful for the externally attached equipment if the RF is applied to early. In order to delay the RF carrier, this parameter should be set. A reasonable setting should be in the order of 40-50 ms. This RF delay comes in addition to the Keying delay Connects the centre pin of the line input transformer to:  Floating: The centre pin is not connected. If loop keying is used, an external voltage must be applied to pin 3 (REM connector) in order to key the transmitter  Ground: The centre pin is grounded. If loop keying is used, an external voltage must be applied to pin 3 (REM connector) in order to key the transmitter.  +12V: A 12V DC is supplied on pin 3(REM connector). The transmitter can be keyed with a relay (or equivalent) that create a DC path on the line input pin, pin 3 and 6 (REM connector).

Calibrate ►

Ref oscillator

-127 – 128

---

VDL mode 2 ►

Input source

RS232, RS485, LAN 30 – 47 dBm

LAN

0.5 – 125.0 ms 0.5 ms steps 6 – 120 s

4.5 ms

1/256 – 256

13/256

Max attempts (M1)

1 – 65536

135

Factory preset

0-1

0

Output power

Inter access (TM1) Channel busy (TM2) Persistence (P)

44 dBm

60 s

This setting is used to fine adjust (calibrate) the reference oscillator of the transmitter. The full range is approximately 10 ppm. (each step gives approximately 5 Hz of TX frequency change). This setting should be used with care, and only when a calibrated frequency measuring instrument is connected to the radio. Determines where data for VDL mode 2 transmission is input. Set the output power for VDL mode 2 operation.  30 dBm = 1W power output  47 dBm = 50W power output Set the inter access delay parameter (TM1) for VDL 2 operation. Set the channel busy parameter (TM2) for VDL2 operation. Set the persistence parameter (P) for VDL2 operation Set the max attempts parameter (M1) for VDL2 operation Writing a “1” to this parameter will reset the receiver and restore the settings that were set at final bench testing at the factory. Use with care – all settings that has been changed will be reset!

Table 8-6, TX config group, transmitter

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7.2.4.3 Interface config group - TX TX-Menu path: Main/Interface config ►

Parameter

Range

Default

Details

Access control

SysOp, Technician, Operator, Restricted

SysOp

Set language

Depending on model

English

Alarm pin pull-up

Disabled | Enabled

Enabled

Select polarity

High to select| Low to select

Low to select

Bitrate Address

1200 – 115200 1 – 255

1200 1

Protocol

Legacy | standard

Legacy

RS232 ►

Bitrate

1200 – 115200

115200

LAN ►

Address

4 octets IP address

---

Netmask

4 octets IP netmask

255.255.0.0

Set the user access level for local control. This setting limits the availability of some front panel menus, depending on the access level. In order to set the access level from the user interface, a special hardware key must be inserted into the microphone/headset connector. Details of the key is available in this manual. Set the language to use on the user interface. Availability of different languages depends on specifications when ordering the transmitter. The ALARM_OUT_P, ALARM_OUT_N output pins on AUX1 connector and ALARM on the REM connector is used to signal that the radio has an alarm. This parameter applies a +12V pull-up voltage to ALARM_OUT_P and ALARM output when there are no alarms present on the radio. When an alarm is detected the relay contact closes and ALARM_OUT_P is connected to ALARM_OUT_N and ALARM is connected to GND. The SELECT_IN_P and SELECT_IN_N input pins on AUX1 connector can be used to select / deselect (Standby) the radio with an external signal (e.g. alarm from a main radio). This setting determines if the radio should be operational on a low “Select” input signal or a high “Select” input signal. Set the bit rate to use on the RS485 port Set the address to use on the RS485. In a remote system using the RS485 communication port, all units that are interconnected need to have a unique address in order to avoid collisions and misinterpretation of data. Legacy uses a protocol where the 9. bit is used for address recognition, this is the protocol used on the previous radio models (TA7450, RA7202) and is compatible with the RACS II PC software and the RCU/DRC/ORC remote control units. Standard is an eight bit protocol that uses the multi-drop capability of the RS485 bus. For more information on protocols, refer to the appropriate protocol documents. Set the bit rate to use on the RS232 interface ports IP interface address for the unit. Must be unique on the LAN and should correspond to the LAN setup for the network that the radio is connected to. The netmask (sub-net mask) used on the IP interface. Should correspond to the LAN setup for the network that the radio is connected to.

Alarm config ►

RS485 ►

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TX-Menu path: Main/Interface config ►

Parameter

Range

Default

Details

Default gateway

4 octets IP address

0.0.0.0

SNMP port

1 – 65535

161

SNMP trap IP

4 octets IP address

239.0.0.1

SNMP trap port

1 – 65535

162

SNMP trap interval

0 – 60

5

TCP control port

1 – 65535

3008

DHCPv4

On/Off

Off

VDL input port (option: VDL 2) VDL output port (option: VDL 2) VDL in IP (option: VoIP)

1 – 65535

3005

1 – 65535

3006

4 octets IP address

0.0.0.0

RTP out IP (option: VoIP)

4 octets IP address

0.0.0.0

RTP in IP (option: VoIP) RTP in port (option: VoIP) RTP out IP (option: VoIP)

4 octets IP address 1 – 65535

0.0.0.0

If set different from the default, the radio unit will send IP traffic to the default gateway if the address is unreachable on the local network The input port used for SNMP commands to the radio, sent from external sources like CMS systems. The default port is the global port for SNMP commands The IP address witch SNMP traps are sent to. The address can be in the form of a unicast, multicast or broadcast address. The port (usually on a CMS system) where SNMP traps are sent to, form the radio. The default value is the global port for SNMP traps The interval on which an “alive” trap (operstate) are sent from the radio to the CMS system, if the TrapIP and TrapPort are set. The value is given in seconds. 0=OFF The port used by TCP clients for the remote control protocol packets. Enable IP4 DHCP reception. Unit need reboot after changing this parameter The input port used for VDL traffic if the VDL input source is set to IP The output port used for VDL traffic if the VDL output source is set to IP Set this IP address to limit VDL packages origin to the IP address set. Set to 0.0.0.0 to allow VDL packages from all origins (default) The IP address that VDL packets received will be sent to. Must be set in order to detect VDL packets. Not implemented yet!!

4 octets IP address

0.0.0.0

RTP out port (option: VoIP)

1 – 65535

3004

RTP Framesize (option: VoIP) RTP codec (option: VoIP)

10 to 100ms

20ms

G711uLaw, G711Alaw, G728, PCM raw 0 to 65535

G711Alaw

RTP sync source (option: VoIP)

IPv6

3003

0

VoIP protocol (option: VoIP) IPv6Enable

ED137, RTP On/Off

Off

Static IP6

16 octets IP6 address On/Off

---

DHCPv6

Off

The input port used for VoIP traffic to the radio VoIP output address for monitoring and recording purpose. TX monitoring VoIP packets will be sent to this address. The port on the monitoring/recording host where TX monitoring VoIP packages are sent to, form the radio. The interval (payload length) between VoIP RTP(voice) packages sent from the radio. The codec(protocol) used to encode/decode VoIP samples. The synchronization source ID embedded in the RTP(voice package) header used for distinguishing packages to the same port. The protocol format used to send/transmit VoIP packages. Enable IP6 support. Unit need re-boot after changing this parameter Display unit Static IP6 address if set via SNMP tool (MIB browser). Enable IP6 DHCP reception. The parameter is only in effect if IP6 is enabled.

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TX-Menu path: Main/Interface config ►

RACK ►

Parameter

Range

Default

Details

DHCP IP6

16 octets IP6 address

---

LinkLocal IP6

16 octets IP6 address

---

Number

0 – 100

0

Row

0 – 20

0

Column

0–6

0

Display unit IP6 DHCP address, received from DHCP server, if IP6 and DHCP are enabled. Display unit IP6 Link Local address if IP6 is enabled. This IP address is derived from the MAC address Used to identify the location of the radio from a remote application. Defines the rack no. where the radio is located. Used to identify the location of the radio from a remote application. Defines the row number in the rack. The row number is counted from the top to the bottom of the rack. Used to identify the location of the radio from a remote application. Defines the column in the rack. The column number is counted from the left in steps of one receiver width or 14TE. There are 84 TE in a 19” rack. I.e. in a 19” frame width 6 receivers, the receivers will have the column set to 1,2,3,4,5 or 6. In a 19” frame width 3 transmitters, the transmitters will have the column set to 1,3 or 5.

Table 8-7, Interface config group, transmitter

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7.2.4.4 Bite system group - TX TX-Menu path: Parameter Main/Bite system ►

Range

Normal

TX alarm ►

Depends on the alarm status of the radio unit

TX alerts ►

Depends on the alert status of the radio unit

Measurements ►

Forward

30 – 47 dBm

N/A

Reflected

N/A

VSWR

0 to Max. Forward power 1:∞

Modulation

Up to 95%

N/A

Current

0 to 12 A (Alarm limit) -55 to +85°C (Alarm limit) -19 to +12dBm (Alarm limit) --20.0 to 30.0 V (Alarm limit)

0.0 to 9.0A (Alert limit) -20 to +55°C (Alert limit) -20 to +11dBm

12 Volt

11.0 to 12.8 V (Alarm limit)

10.0 to 14.0V (Alert limit)

6 Volt

5.0 to 7.0 V

6V

5 Volt

4.3 to 5.6 V (Alarm limit)

4.6 to 5.4V (Alert limit)

-5 Volt

-6.2 to -4.0 V (Alarm limit)

-5.65 to -4.55V (Alert limit)

3.3 Volt

2.9 to 3.6 V (Alarm limit)

3.0 to 3.5V (Alert limit)

PA Temp LO level Line level 28 Volt

1:0 to 1:2

dBm 24.0 to 29.0V (Alert limit)

Details

This option displays all active alarms in the unit. See Transmitter error conditions for more info. This option displays all active alerts in the unit. See Transmitter error conditions for more info. Displays the forward power in dBm detected at the output (directional coupler) of the transmitter Displays the reflected power in dBm detected on the output (directional coupler) of the transmitter Displays the calculated VSWR from the forward and reflected measurements Displays the measured modulation level on the output of the transmitter [%] Displays the total current consumption (28V) of the transmitter [A] Displays the temperature measured on the PA module in the transmitter [°C] Displays the level measured at the output of the local oscillator in dBm Displays the input line level in dBm Displays the regulated 28V supply from the power regulator board. The 28V is used on the PA board. Displays the regulated 12V supply from the power regulator board The 12V is used on the main board Displays the regulated 6V on the modulator board Displays the regulated 5V supply from the power regulator board. The 5V is used on several modules Displays the regulated -5V supply from the power regulator board. The -5V is used on the main board. Displays the regulated 3.3V supply from the power regulator board. The 3.3V is used on several modules

Table 8-8, Bite system group, transmitter

7.2.4.5 System info group -TX TX-Menu path: Parameter Main/System info ► PName PID Sno SW MAJ

Details

Displays the name of the product. ie TA7650 Displays the customer/system ID of the product. ie 'TX1 OSL CONTROL'. This is text is configurable via SNMP. Displays the serial number of the radio. The serial number is also used to define the MAC address of the unit. Display the major release number of the units software. The number in front of the dot. ( 3.)

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TX-Menu path: Main/System info ►

Parameter

Details

SW MIN

Display the minor release number of the units software. The number after of the dot ( .5) Display the release date of the software Defines the HW release of the various modules identified by the module (X-) or part number Display the location where the radio is located, ie:'Tower'. This is text is configurable via SNMP. Display the time that the radio has been powered on (in seconds/hours)

SW REL HW VER Rack Uptime

Table 8-9, System info group, Transmitter

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7.3 Receiver 7.3.1 User menu – receiver (Restricted access level) Main display window in restricted mode. Display

Description When the receiver is switched on, it will show the frequency and the operation mode (AM).

Press to navigate to the channel recall screen. Select any channel (up to 100) that is previously stored in the radio by rotating . Recall selected channel with If no channel is stored, the display will show: CH: No channels Press to navigate to the loudspeaker audio output screen. This setting adjusts the audio level output in the integrated loudspeaker. Rotate CW or CCW to adjust the audio level. Press to navigate to the headset audio output screen. This setting adjusts the audio level output in the integrated loudspeaker. Rotate CW or CCW to adjust the audio level. Press to navigate to the display intensity adjust screen. This setting adjusts the intensity of the display and LED indicators. Rotate CW or CCW to adjust the intensity. Press

to return to the default screen

Pressing from the main display will bring up the menu options that are available for the current user level. Press to disable / active the squelch. Menus for user level: Restricted For details regarding submenus, refer to chapter 5.4. Table 8-10, User menu selections receiver - restriced access level

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7.3.2 User menu – Receiver (Default access level) Main display window for user levels: Operator, Technician and SysOp. Display

Description When the receiver is switched on, it will show the frequency and the operation mode (AM).

Press to navigate to the channel recall screen. Select any channel (up to 100) that is previously stored in the radio by rotating . Recall selected channel with If no channel is stored, the display will show: CH: No channels Press to navigate to the loudspeaker audio output screen. This setting adjusts the audio level output in the integrated loudspeaker. Rotate CW or CCW to adjust the audio level. Press to navigate to the headset audio output screen. This setting adjusts the audio level output in the integrated loudspeaker. Rotate CW or CCW to adjust the audio level. Press to navigate to the set frequency screen. Use and to adjust the frequency steps. Rotate CW or CCW to select a new frequency. Confirm new frequency with or . Press to navigate to the channel store screen. Select channel number by rotating CW or CCW. Confirm with or . If the channel is already programmed, the channel may be cleared using Press to navigate to the display intensity adjust screen. This setting adjusts the intensity of the display and LED indicators. Rotate CW or CCW to adjust the intensity. Press

to return to the default screen

Table 8-11, User menu selections receiver - Operator, Technician and SysOp access levels

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7.3.3 Settings, information and configuration menus – Receiver Under the menu selection from the user menu, several submenu groups are available depending on the user level. The submenus and details for them are shown in the tables below. Submenu

Access level

Description

Ref

Radio control

SysOp, Technician

Access to operation mode, squelch settings (S/N squelch), modulation type and standby settings.

8.3.3.1

Access to configuration parameters for modulation type, audio settings, Squelch settings (carrier override level) and internal calibration settings.

8.3.3.2

Access to configuration parameters for the ethernet interface, RS232 port, RS485 port, various pin settings on the hardware interface (remote connectors) and the user access level.

8.3.3.3

RX config

►

►

SysOp

Interface config ►

SysOp

Bite system

►

SysOp, Technician

Displays information about active alarms and gives the user access to internal 8.3.3.4 measurements.

System info

►

All

Displays information about the firmware and hardware release, system up-time and radio identification

8.3.3.5

Table 8-12, Submenus available on the receiver

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7.3.3.1 Radio control group - RX SysOp and Technician access levels.

Menu Radio Control S/N SQ level

(Refer to section 7.3.4.1 for details) Set the squelch opening signal to nose limit, in dB

Operation Mode (Refer to section 7.3.4.1 for details) Set the radio to act as ”Main” or ”Normal” radio Modulation

(Refer to section 7.3.4.1 for details) Choose between available modulation types (AM, FM, VDL etc.)

Alarm (Refer to section 7.3.4.1 for details) Force the radio into alarm state (for test) Standby (Refer to section 7.3.4.1 for details) Force the radio into standby state (for test) Force mute

(Refer to section 7.3.4.1 for details) Forces audio muting

Figure 8-5, Radio control group, receiver

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7.3.3.2 RX config group - RX SysOp access level.

Menu RX config

Audio (Refer to section 7.3.4.2 for details) Set parameters for Audio in/out, sensitivity, Audio source, Tone generator etc.

Squelch (Refer to section 7.3.4.2 for details) Set parameters for the squelch. In-band configuration and polarity of sq. out pins.

Calibrate (Refer to section 7.3.4.2 for details) Calibrate the reference oscillator

VDL mode 2 (Optional) (Refer to section 7.3.4.2 for details) Set parameters for VDL mode 2 operation. Power output, data source etc.

Factory preset (Refer to section 7.3.4.2 for details) Resets the radio to factory pre-set values

Figure 8-6, RX config group, receiver

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7.3.3.3 Interface config group - RX SysOp access level.

Menu Interface config Access control (Refer to section 7.3.4.3 for details) Set the user access level for local poeration

Set language (Refer to section 7.3.4.3 for details) Set the menu language for local operation

Alarm config (Refer to section 7.3.4.3 for details) Set pull-up for the external alarm pin and polarity for the select signal

RS485 (Refer to section 7.3.4.3 for details) Set parameters for RS485 serial communication. Bit rate, protocol and address RS232 (Refer to section 7.3.4.3 for details) Set parameters for RS232 serial communication. Bit rate and protocol LAN (Refer to section 7.3.4.3 for details) Set parameters for the Ethernet (IP) communication, traps and VoIP

IPv6 (Refer to section 7.2.4.3 for details) Set parameters for the IP version 6, static IP, DHCP and Linklocal

Rack (Refer to section 7.3.4.3 for details) Set parameters for to identify the physical radio location. Rack number, row etc.

Figure 8-7, Interface config group, receiver

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7.3.3.4 Bite system group - RX SysOp and Technician access levels.

Menu Bite system Alarms (Refer to section 7.3.4.4 for details) Display active alarms. Identifies modules and parameter with failure

Alerts (Refer to section 7.2.4.4 for details) Display active alarms. Identifies modules and parameter with failure

Measurments (Refer to section 7.3.4.4 for details) Display Bite measurements. Voltages, currents, lock detect etc.

Figure 8-8, Bite system group, receiver

7.3.3.5 System info group - RX Available for all access levels.

Menu System info (Refer to section 7.3.4.5for details) ID, firmware and hardware release information. Radio Up-time Figure 8-9, System info group, receiver

Jotron AS| TR7750: Operators handbook  6BOperating Instructions P/N: 84496 (v.E)

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7.3.4 Parameter details – Receiver 7.3.4.1 Radio control group - RX RX-Menu path: Main/Radio control ►

Parameter

Range

Default Details

S/N SQ level

5 to 20 dB

12 dB

Operation mode

Main | Norm

Norm

Modulation

AM, FM, AMMSK, VDL2

AM

Sets the Signal to noise level that the S/N squelch shall open on. The S/N squelch floats on top of the noise and opens (de mutes the loudspeaker) on the pre-set signal to noise level. A main radio will enter into standby if an alarm is detected by the internal BITE system. A norm radio will continue operation (if possible) even if a failure is detected. In a main / standby configuration, the main radio is set to Main and the standby radio is set to Norm. When correctly wired the control can then automatically be transferred to the standby radio by using the available alarm output and select input on the radios. Select the modulation type / waveform to use.

(Availability of certain choices may depend on options enabled)

Alarm

On | Off

Off

Standby

On | Off

Off

Force mute

On | Off

Off

This setting force the radio into alarm state (forced alarm) if set to On. Used for simulations, or to force a radio to signal an alarm in order to select a backup (standby) radio. This setting force the radio into standby state (forced standby) if set to On. Used to manually set a radio to standby. This setting force the radio to mute the audio out.

Table 8-13, Radio control group, receiver

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7.3.4.2 RX config group - RX RX-Menu path: Main/RX config ► Audio ►

Parameter

Range

Default

Details

Output source

Speaker | Headphone | Lineout | VoIP

Speaker, Headphone, Lineout

The output source determines where the received audio is output.  Line: Output audio on the 600 ohm line interface  Speaker: Output audio on the integrated speaker.  Headphone: Output audio to a headphone connected to the front panel connector.  VoIP: Output audio on the IP interface

-40.0 to +10.0 dBm, 0.5 dB step Off, X-fast, Fast, Normal, Slow, X-slow

-10.0 dBm

AF AGC

On | Off

Off

Mute on transmit

Mute | Mute w/AGC | Mute Off

Mute Off

Audio mute level

No audio | 0dB | -5dB | -10dB | 15dB | -20dB | 25dB | -30dB 0 to 250ms

No audio

The max. output level on the 600 ohm line for 90% amplitude modulation (AM).1kHz signal. Set the attack and release times for the RF AGC. Set to Norm for EN300676 specification.  Off is used only for maintenance purposes. Set the automatic AF gain control on or off. Setting AF AGC on will lead to constant audio output when received signals have varying modulation levels. This will enhance the audio quality for weak signals Set this to • Mute if the RX should be completely muted while transmitting. • Mute w/AGC mutes the RX audio with the dB level set by the Audio mute level setting. Requires that the TX busy signal on the RX connector on the transmitter is routed to the TX busy input on the receiver REM connector via the transceiver cable. • Mute Off = no muting Set the dB level that the Rx audio is muted if Mute on transmit is set to Mute w/AGC.

Level | S/N | Level OR S/N | Level AND S/N

Level OR S/N

(Availability of certain choices may depend on options enabled) Line output level

RF AGC

Audio mute delay Squelch ►

Sq setup

Norm

100ms

Set the time that the muting should persist after the transmission has ended. The radio has Level and S/N squelch functions. This setting select the type or combination of squelch function for the radio. Level selects level squelch only and will demute audio when any RF signal passes the level set by the SQ override lvl setting. S/N selects Signal to noise squelch function only and de-mute the audio when the signal to nose level passes the S/N ratio set by the S/N SQ level setting. Level OR S/N will give audio if either the Level or the S/N squelch triggers. Level AND S/N setting needs to fulfil both Level and S/N squelch requirements to demute the audio.

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RX-Menu path: Main/RX config ►

Parameter

Range

Default

Details

SQ override lvl

-5 dBuV to +42 dBuV

20 dBuV

Inband config (option In-band)

Off, Open, Closed, Both

Off

The override level where the analogue squelch will open even if it is a “noisy” signal. This squelch level overrides the noise compensated squelch when both are selected with Level or S/N in the Sq setup setting. Setting this level to a lower level than the “SQ level” will disable the noise compensated squelch completely in this setup. Defines the behavior of the in-band squelch signal.  Off: No in-band tone is generated  Open: An in-band tone is generated when the squelch is open (receiving)  Closed: An in-band tone is generated when the squelch is closed (muted)  Both: Different tones are generated depending on the status of the squelch.

Inband freq open (option In-band)

100 – 5000 Hz 10 Hz steps

5000

Inband freq closed (option In-band)

100 – 5000 Hz 1 Hz steps

5000

Inband level (option In-band)

-30 to -10

-24

SqOut output

Closed | Open | Closed when busy| Open when busy Closed | Open | Closed when busy| Open when busy -127 – 128

Closed when busy

Set the frequency to be used for the in-band tone that will be used to signal that the squelch is open. Requires that open is included in the In-band config setting. The receiver will automatically notch the received signal and insert a tone at the given frequency. Applicable to the line interface output only. Set the frequency to be used for the in-band tone that will be used to signal that the squelch is closed. Requires that closed is included in the In-band config setting. The receiver will automatically insert a tone at the given frequency. Applicable to the line interface output only. The level of the in-band tone relative to the setting in the line level output level in dB. Applicable to the line interface output only. Set the behavior of the SqOut output (AUX2, p.1 and p.2).

Closed when busy

Set the behavior of the RxBusy output (REM, p.5).

0

This setting is used to fine adjust (calibrate) the reference oscillator of the receiver. The full range is approximately 10 ppm. (each step gives approximately 5 Hz of RX center frequency change). This setting should be used with care, and only when a calibrated frequency measuring instrument is connected to the radio. The exact frequency of the receiver can be determined either by connecting a spectrum analyzer to the antenna connector of the receiver and measure the leakage of the LO output (45 MHz above the operating frequency) – or by using a radio test set to measure the bandwidth of the receiver and adjust until centre is on the operating frequency.

RxBusy output

Calibrate ►

Ref oscillator

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RX-Menu path: Main/RX config ►

VDL mode 2 ► (option VDL 2)

Parameter

Range

Default

Details

RSSI reading

-10 to +10 dB

0 dB

Output

LAN

Station ID

RS232, RS485, LAN 0 - 16777215

Provider Code

0 - 16777215

16777215

Message format

BER message Single AVLC Multiple AVLC

Single AVLC

CU Interval

0 – 60s 1s steps

0

Mute on transmit

On/Off

On

Factory preset

0, 1

0

In order to measure the RSSI level exactly, there is a provision to calibrate the reading. Normally the reading is within +/-2 dB without calibration, but it can be useful if to signals are being compared. Determines to which port data received with the VDL2 waveform is output If the station ID is set different from the default value (0) the radio will filter all incoming messages, and only output those messages that are addressed for the specific ground station ID. (Broadcast messages are always received and output on the interface) Used to set a provider code that is used to filter out messages to “all ground stations of a particular provider”. Set to default (0xffffff) to enable “all providers”. Defines the format of the VDL2 output message using the TCP/IP connection.  BER message: The receiver omits FEC and bit destuffing. Messages are output as “raw” data. Used to test conformance to EN301481-1 tests.  Single AVLC: Messages are output as single AVLC frames  Multiple AVLC: Messages are output as multiple AVLC frames (up to 7 in each message) The interval on which the “CU” value (Channel utilization) is sent to the host over the tcp connection. The CU is calculated for the time period set, i.e. If set to 15 the CU will reflect the average channel utilization for the past 15s. Default (0) means that the CU trap is switched off. Determinates if the receiver is muted (no output) during transmissions from own TX. If set to Off, own generated messages will be detected and output on the TCP/IP connection. The filters above (Station ID and Provider Code) will not have any effect on own messages. Writing a “1” to this parameter will reset the receiver and restore the settings that where set before shipping from the factory. Use with care – all settings that has been changed will be reset!

0

Table 8-14, RX config group, receiver

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7.3.4.3 Interface config group - RX RX-Menu path: Main/Interface config ►

Parameter

Range

Default

Details

Access control

SysOp, Technician, Operator, Restricted

SysOp

Set language

Depending on model

English

Alarm pin pullup

Disabled | Enabled

Enabled

Select polarity

High to select| Low to select

Low

Bitrate Address

1200 – 115200 1 – 255

1200 1

Protocol

Legacy | standard

Legacy

RS232 ►

Bitrate

1200 – 115200

115200

LAN ►

Address

4 octets IP address

---

Netmask

4 octets IP netmask

255.255.0.0

Set the user access level for local control. This setting limits the availability of some menus, depending on the access level. In order to set the access level from the user interface, a special hardware key must be inserted into the microphone/headset connector. Details of the key available in the technical manual. Set the language to use on the user interface. Availability of different languages depends on specifications when ordering the receiver. The ALARM_OUT_P, ALARM_OUT_N output pins on AUX1 connector and ALARM on the REM connector is used to signal that the radio has an alarm. This parameter applies a +12V pull-up voltage to ALARM_OUT_P and ALARM output when there are no alarms present on the radio. When an alarm is detected the relay contact closes and ALARM_OUT_P is connected to ALARM_OUT_N and ALARM is connected to GND. The SELECT_IN_P and SELECT_IN_N input pins on AUX1 can be used to select / deselect (Standby) the radio with an external signal (e.g. alarm from a main radio). This setting determines if the radio should be operational on a low select input signal or a high select input signal. Set the bit rate to use on the RS485 port Set the address to use on the RS485. In a remote system using the RS485 communication port, all units that are interconnected need to have a unique address in order to avoid collisions and misinterpretation of data. The protocols are described in the data manual. Legacy uses a protocol where the 9. bit is used for address recognition, this is the protocol used on the previous radio models (TA7450, RA7202) and is compatible with the RACS II PC software and the RCU remote control unit. Standard is an eight bit protocol that uses the multidrop capability of the RS485 bus. For more information on protocols, refer to the SW manual. Set the bit rate to use on the RS232 interface ports IP interface address for the unit. Must be unique on the LAN and should correspond to the LAN setup for the network that the radio is connected to. The netmask used on the IP interface. Should correspond to the local network that the radio is connected to.

Alarm config ►

RS485 ►

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RX-Menu path: Main/Interface config ►

Parameter

Range

Default

Details

Default gateway

4 octets IP address

0.0.0.0

SNMP port

1 – 65535

161

SNMP trap IP

4 octets IP address

239.0.0.1

SNMP trap port

1 – 65535

162

SNMP trap interval

0 – 60

5

TCP control port

1 – 65535

3008

DHCPv4

On/Off

Off

VDL input port (option VDL 2) VDL output port (option VDL 2) VDL in IP (option VDL 2)

1 – 65535

3005

1 – 65535

3006

4 octets IP address

0.0.0.0

VDL out IP (option VDL 2)

4 octets IP address

0.0.0.0

RTP out IP (option VoIP)

4 octets IP address

0.0.0.0

RTP out port (option VoIP) RTP Framesize (option VoIP) RTP codec (option VoIP)

1 – 65535

3004

10 to 100ms

20ms

G711uLaw, G711Alaw, G728, PCM raw 0 to 65535

G711Alaw

If set different from the default, the radio unit will send IP traffic to the default gateway if the address is unreachable on the local network The input port used for SNMP commands to the radio, sent from external sources like CMS systems. The default port is the global port for SNMP commands The IP address witch SNMP traps are sent to. The address can be in the form of a unicast, multicast or broadcast address. The port (usually on a CMS system) where SNMP traps are sent to, form the radio. The default value is the global port for SNMP traps The interval on which an “alive” trap (operstate) are sent from the radio to the CMS system, if the TrapIP and TrapPort are set. The value is given in seconds. 0=OFF The port used by TCP clients for the remote control protocol packets. Enable IP4 DHCP reception. Unit need reboot after changing this parameter The input port used for VDL traffic if the VDL input source is set to IP The output port used for VDL traffic if the VDL output source is set to IP Set this IP address to limit VDL packages origin to the IP address set. Set to 0.0.0.0 to allow VDL packages from all origins (default) The IP address that VDL packets received will be sent to. Must be set in order to detect VDL packets. This is the address of the host ( external unit) that shall receive the VoIP packages that is sent by the radio. The port on the receiving host where receiver VoIP packages are sent to. The interval (payload length) between VoIP RTP(voice) packages sent from the radio. The codec(protocol) used to encode/decode VoIP samples.

RTP sync src (option VoIP)

IPv6

0

VoIP protocol (option VoIP) IPv6Enable

ED137, RTP On/Off

Off

Static IP6

16 octets IP6 address On/Off

---

DHCPv6

Off

DHCP IP6

16 octets IP6 address

---

LinkLocal IP6

16 octets IP6 address

---

The synchronization source ID embedded in the RTP(voice) header used for distinguishing packages to the same port. The protocol format used to send/transmit VoIP packages. Enable IP6 support. Unit need re-boot after changing this parameter Display unit Static IP6 address if set via SNMP tool (MIB browser). Enable IP6 DHCP reception. The parameter is only in effect if IP6 is enabled. Display unit IP6 DHCP address, received from DHCP server, if IP6 and DHCP are enabled. Display unit IP6 Link Local address if IP6 is enabled. This IP address is derived from the MAC address

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RX-Menu path: Main/Interface config ► Rack ►

Parameter

Range

Default

Details

Number

0 – 100

0

Row

0 – 20

0

Column

0–6

0

Used to identify the location of the radio from a remote application. Defines the rack where the radio is located. Used to identify the location of the radio from a remote application. Defines the row number in the rack. The row number is counted from the top to the bottom of the rack. Used to identify the location of the radio from a remote application. Defines the column in the rack. The column number is counted from the left in steps of one receiver width or 14TE. There are 84 TE in a 19” rack. I.e. in a 19” frame width 6 receivers, the receivers will have the column set to 1,2,3,4,5 or 6. In a 19” frame width 3 transmitters, the transmitters will have the column set to 1,3 or 5.

Table 8-15, Interface config group, receiver

7.3.4.4 Bite system group - RX RX-Menu path: Main/Bite system ►

Parameter

Range

Normal

Details

Alarms ►

Depends on the alarm status of the radio unit

This menu item displays all active alarms in the unit. See section 6 for more information

Alerts ►

Depends on the alert status of the radio unit

This menu item displays all active alerts in the unit. See section 6 for more information

Measurements ►

RSSI Line level

-10 to +110 dBuV -50 to +10 dBm

AGC volt Codec/Eth LD

0 to 5 V Lock / Unlock

Ch utilization

0..100 %

Temperature

-30 to +85°C (alarm limit) 0.1 to 0.45 A (alarm limit) 20 to 90 mA (alarm limit) 20 to 90 mA (alarm limit) Min. 15 dBm (alarm limit) Lock / Unlock (alarm) 9.5 to 14.5V (alarm limit)

DC current IF current LNA current LO level LO lock 12 Volt

Lock

-20 to +80°C (alert limit) 0.1 to 0.4 A (alert limit) 30 to 80 mA (alert limit) 30 to 80 mA (alert limit)

Lock 10 to 14V (alert limit)

Displays the received signal level (RSSI) in dbuV Displays the level measured on the output of the 600 ohm line interface Displays the internal AGC voltage Displays the status of the VCO used for the Codec and Ethernet chips. Displays the channel utilization when the receiver is used in VDL mode 2. The value is calculated default for the past second, or averaged over a longer period determined by the value set in VDL2-CU interval Displays the internal temperature measured on the main board [°C] Displays the total current consumption [28V] of the receiver [A] Displays the current consumption in the IF (Intermediate Frequency) circuit [mA] Displays the current consumption in the LNA (Low noise amplifier) [mA] Displays the level measured at the output of the local oscillator in dBm Displays the status of the local oscillator in the receiver. Displays the regulated 12V supply from the power supply board The 12V is used on the main board

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RX-Menu path: Main/Bite system ►

Parameter

Range

Normal

Details

6 Volt

5.0 to 7.0V

6.0V

5 Volt

4.5 to 5.5V (alarm limit)

4.6 to 5.4V (alert limit)

3.3 Volt

2.9 to 3.6V (alarm limit)

3.0 to 3.5V (alert limit)

AC

Present/Not

Displays the regulated 6V on the demodulator board Displays the regulated 5V supply from the power supply board. The 5V is used on several modules Displays the regulated 3.3V supply from the power supply board. The 3.3V is used on several modules Present / Not present. Signals that AC is present or not present at the input of the unit.

Table 8-16, Bite system group, receiver

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7.3.4.5 System info group - RX RX-Menu path: Main/System info ►

Parameter

Details

PName PID

Displays the name of the product. ie RA7203 Displays the customer/system ID of the product. ie 'RX1 OSL CONTROL'. This is text is configurable via SNMP. Displays the serial number of the radio. The serial number is also used to define the MAC address of the unit. Display the major release number of the units software. The number in front of the dot. ( 3.) Display the minor release number of the units software. The number after of the dot ( .5) Display the release date of the software Defines the HW release of the various modules identified by the module (X-) or part number Display the location where the radio is located, ie:'Tower'. This is text is configurable via SNMP. Display the time that the radio has been powered on (in seconds/hours)

Sno SW MAJ SW MIN SW REL HW VER Rack Uptime

Table 8-17, System info group, receiver

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8 Failures and corrective actions 8.1 Alarms

When the internal BITE (Built In Test Equipment) in the transmitter or the receiver units detects a failure, the Alarm LED on the front panel of the unit will be lit. In addition the radio unit will signal with an automatically generated SNMP trap message on the Ethernet interface and close the two internal alarm “relays” to signal an alarm condition to external equipment. Details about the alarm conditions are accessible in the “Bite systems” menu. The Alarm and alert messages are available in two levels. First level indicates the module that has the failure, if appropriate. The next level(s) gives more details about the problem that caused the alarm condition. The measurements that generate alarms are indicated by alarm limits in table 8.3.4.4 for the receiver and table 8.2.4.4 for the transmitter

8.2 Alerts

Prior to some alarm conditions, and alert is sent as an SNMP trap message on Ethernet to the CMS system. Details about the alert conditions are also accessible in the “Bite systems” menu for user access levels: SysOp and Technician. The measurements that generate alerts are indicated by alert limits in table 8.3.4.4 for the receiver and table 8.2.4.4 for the transmitter

8.3 System components

In the following (LRU) refers to the Lowest Replaceable Unit – and is normally the first line maintenance where the complete unit is replaced. (LRM) refers to the Lowest Replaceable Module and is the module within the unit that can be replaced. The LRM level normally requires a well equipped workshop with appropriate tools for testing and calibration.

8.4 Transmitter error conditions Display

Description Press

Use

from the main display to bring up the available menus.

to navigate to the Bite system menu and select by pressing

Select TX alarm

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The displays shows module(s) where the BITE system has detected failures. To view more details about the failure, select module. Table 9-1, Alarm indication, transmitter navigation

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TX alarm (TX Alert)

PA Module High SWR -> SWR reading higher than 1:3 Probable cause -> Mismatch or short in antenna system Alarm action -> Check antenna/Antenna connectors/Antenna cable Current -> Transmitter current is outside limits (see 7.2.4.4 for details) Probable cause -> Defective output transistor Alarm action -> Replace TX unit (LRU) or PA module (LRM)

Temperature -> PA temperature is outside limits (see 7.2.4.4 for details) Probable cause -> High/low ambient temperature or defective output transistor Alarm action -> Check Ambient temperature or replace TX unit (LRU) or PA module (LRM)

28V, 12V, 5V, 3.3V, -5V -> Supply voltage is outside limits (see 7.2.4.4 for details) Probable cause -> Defective components on power regulator board Alarm action -> Replace TX unit (LRU) or PA module (LRM)

PA output power error -> Output power is outside +/- 3dB limit off desired output power set in the main menu. Probable cause -> Defective PA module Alarm action -> Replace TX unit (LRU) or PA module (LRM) RF phase tune error -> Internal phase miss match in transmitter Probable cause -> Defective components. Alarm action -> Replace TX unit (LRU) Figure 9-1, Transmitter PA module, errors and corrective actions

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TX alarm (TX Alert)

Mod Module LO level -> LO level is outside limits (se 7.2.4.4 for details) Probable cause -> Defective synthesizer circuit/VCO/TCXO Alarm action -> Replace TX unit (LRU) or Modulator module (LRM)

LO lock detect -> Synthesizer is out of lock (se 7.2.4.4 for details) Probable cause -> Defective synthesizer circuit/VCO/TCXO Alarm action -> Replace TX unit (LRU) or Modulator module (LRM) Figure 9-2, Transmitter Modulator module, errors and corrective actions

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TX alarm Forced Alarm -> Alarm manually set via main menu or CMS system for test Probable cause -> Alarm testing or manually forcing a main/standby channel to standby operation by setting main radio in alarm condition Alarm action -> Revert alarm setting. External Alarm -> Alarm signaled via IN_ALARM input at the RX connectors Probable cause -> Co-located Receiver is turned OFF or in alarm condition Alarm action -> Turn on or replace RX unit (LRU) Figure 9-3, Transmitter Forced- and External alarms

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8.5 Receiver error conditions Display

Description Press

Use

from the main display to bring up the available menus.

to navigate to the Bite system menu and select by pressing

Select Alarms and press

The displays shows module(s) where the BITE system has detected failures. To view more details about the failure, select module. Table 9-2, Alarm indication, receiver navigation

RX Alarm (Alert)

Power Module Temperature -> Receiver temperature is outside limits (see 7.3.4.4 for details) Probable cause -> Ambient temp. or component failure on the power module. Alarm action -> Check Ambient temperature or replace RX unit (LRU) or Power module (LRM)

Current -> Receiver current is outside limits (see 7.3.4.4 for details) Probable cause -> Component failure in one of the modules (LRU). Alarm action -> Replace RX unit (LRU), Power module, Main module or RF module (LRM)

12V, 5V, 3.3V -> Supply voltage is outside limits (see 7.3.4.4 for details) Probable cause -> Defective components or excessive power consumption Alarm action -> Replace RX unit (LRU), Power module, Main module or RF module (LRM) Figure 9-4, Receiver Power module, errors and corrective actions

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RX Alarm (Alert)

RF Module LO level -> LO level is outside limits (see 7.3.4.4 for details) Probable cause -> Defective synthesizer/VCO/TCXO Alarm action -> Replace RX unit (LRU) or RF module (LRM)

LO lock detect -> Synthesizer is out of lock (drifting) Probable cause -> Defective synthesizer/VCO/TCXO Alarm action -> Replace RX unit (LRU) or RF module (LRM)

LNA current -> LNA current is outside limits (see 7.3.4.4 for details) Probable cause -> LNA transistor defective due to RF overload Alarm action -> Replace RX unit (LRU) or RF module (LRM) IF current -> IF circuit current is outside limits (see 7.3.4.4 for details) Probable cause -> Defective IF chip on the RF board Alarm action -> Replace RX unit (LRU) or RF module (LRM) Figure 9-5, Receiver RF module, errors and corrective actions

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RX Alarm Forced Alarm -> Alarm manually set via main menu or CMS system for test Probable cause -> Alarm testing or manually forcing a main/standby channel to standby operation by setting main radio in alarm condition Alarm action -> Revert alarm setting. External Alarm -> Alarm signaled via IN_ALARM input at the REM connectors Probable cause -> Co-located Transmitter is turned OFF or in alarm condition Alarm action -> Turn ON or replace TX unit (LRU) Figure 9-6, Receiver Forced- and External alarms

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9 Maintenance 9.1 Preventive Maintenance

Jotron have made suggestions for a preventive maintenance schedule based on customer requirements. For details please refer to the Jotron Preventive maintenance procedure (Refer to section 12).

9.2 PC utilities

The radios are accessible via IP and supports SNMP. This gives reading access to all of the parameters in the radios. In addition most parameters may be set as well. To use the IP based utilities, the service PC need to be configured within the same sub-network as the radios. See IP planning above for details.

9.2.1 Radio Controller client Jotron has made a Radio Controller Client that gives remote access to most of the parameters that are accessible from the radio front panel main menu. This is software that is installed on a PC with a user-friendly interface toward the radios. With this tool you can access several radios at the same time to make comperance on settings and BITE readout. You can also open several displays to the same radio to monitor BITE and control the radio at the same time. The communication from the radios to the radio controller client is based on multicast messages. Multicast messages are usually blocked in a router, but may be forwarded. The tool is therefore most suitable for local operation on site.

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9.2.2 MIB-browser The MIB browser gives read access to all parameters in the radios, you can set most of them and you can log parameter values over time. It has a higher user thrash hole that the Radio Controller client and it is most suitable for qualified or especially interested maintenance personnel. Shareware software, installed on a PC, may be used. In addition to the MIB browser software, you also need the latest Jotron MIB database with information on the various parameters. The MIB browser is not limited by routed networks like the Radio controller client is.

9.2.3 IP-Ping Ping is a computer network administration utility used to test the reachability (IP connectivity) of a host(radio) on an Internet Protocol (IP) network and to measure the round-trip time for messages sent from the originating host(PC) to a destination hoste (radio). The results of the test are printed in form of a statistical summary of the response packets received, including the minimum, maximum, and the mean round-trip times. Ping may be run using various options (command line switches) depending on the implementation that enable special operational modes, such as to specify the packet size used as the probe, automatic repeated operation for sending a specified count of probe-packages and more. Ping is run from the CMD prompt on a Windows computer.

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10 Dimension and weight 10.1 Transmitter unit

Weight: 3.0 kg. (Dimensions in mm)

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10.2 Power supply

Weight: 1.3 kg. (Dimensions in mm)

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10.3 Receiver Unit

Weight: 1.7 kg. (Dimensions in mm)

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10.4 Transceiver (Sub rack) Front view (dimensions in mm)

Top view (dimensions in mm)

10.5 Packaging

The transceiver sub-rack is packed i a cardboard box together with a plug kit and the Operation and Installation manual on a CD. • Box dimensions: 475mm x 565mm x 230mm • Total weight: 10.7 kg Jotron AS| TR7750: Operators handbook  9BDimension and weight P/N: 84496 (v.E)

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11 Supporting documents Document name Preventive Maintenance Procedure, TR-77xx and TR-3xxx with Accessories TR77XXX FIRMWARE UPGRADE PROCEDURE TR77xx series TCP/IP REMOTE PROTOCOL VDL Mode2 Protocol

VOIP AND DSC PROTOCOL

Base stations Remote Protocol description

Description This document is a general suggestion of how to perform preventive maintenance on Jotron equipment. This procedure describes how to update the firmware for the TR77xx base station units (RA and TA). This document describes the TCP protocol used in Jotron 7000 digital base stations This document describes the VDL Mode2 communication protocol for the Jotron Air band 7000 digital base stations This document describes Voice over IP (VoIP) and Digital Selective Calling (DSC) protocols for the Jotron 7000 digital base station family: This document describes the RS485 and RS232 serial protocols and SNMP protocol used in Jotron base stations

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