ALCOMA ALxxF Microwave Radio IDU Users Manual

ALxxF Microwave Radio Indoor Unit (IDU) Users Manual

Revision 2 1 June 2009

ALCOMA spol. s r.o.

Habartovska 313 152 00 Prague 5 Tel: +420-602619655

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Table of Contents ALXXF PRODUCT DESCRIPTION

3

1.1.

Overview

3

1.2. 1.2.1. 1.2.2. 1.2.3. 1.2.4. 1.2.5. 1.2.6. 1.2.7.

Front Panel Interfaces 7 T1/E1 Ports.............................................................................................................................. 7 Ethernet Transport Ports.......................................................................................................... 7 Ethernet Management Ports .................................................................................................... 8 Overhead/Hot Standby Interface ............................................................................................. 8 Command Line Serial Interface .............................................................................................. 9 DC Power ...............................................................................................................................10 ODU Interface........................................................................................................................11

1.

2.

SETUP AND OPERATION

13

3.

CLI TEXT MENU CONTROL AND STATUS SOFTWARE INTERFACE

15

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1. ALxxF Product Description 1.1. Overview The ALxxF serves as the Indoor Unit of a point-to-point microwave radio system designed for operation in the 7 to 38 GHz radio frequency band. Key features and functions are as follows: •

Line interface and conditioning functions necessary for transport of up to four PDH T1/E1 channels

•

Ethernet transport via two front panel 100BaseT RJ-45 ports. The IDU can be configured for standalone Ethernet transport, or a combination of T1/E1 and Ethernet transport. VLAN security features and Ethernet port rate controls.

•

Digital modem functions with configurable modulation modes of QPSK, 16QAM, 32QAM, 64QAM, 128QAM and 256QAM.

•

Configurable forward error correction with settable interleaver depth (latency)

•

Management interfaces include front panel RS-232 serial port and two Management Ethernet ports and Web based GUI interface. o Web based security user authentication o Advanced link performance monitoring, including data log and event logs o Downloadable firmware upgrade feature via Ethernet management ports o Link status display of local and remote terminals o Local and remote control of terminals via Ethernet management ports o Software selection of multiple versions of ODU’s

•

On-board Ethernet Switch together with dual management Ethernet ports supports daisy-chaining of Ethernet Management

•

Overhead admin serial channel interface (transported as side-channel over the link)

•

SNMP alarm features and user settable heartbeat for use with trap server.

•

Two FormC general purpose relays. Two Alarm Bi-level inputs

•

Hot Standby control and status interface allows for Protected Mode operation.

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•

Wide-mouth 21 to 60V DC Power interface is configurable via internal switch for negative or positive voltage operation1

•

All Outdoor Unit (ODU) interface signals are multiplexed onto front-panel N-type connector interface

•

Front panel LEDs indicate Power-on, Alarm and Fault status

1

Prototype DC power polarity configured via jumpers on Power Converter Board. Production version will replace jumpers with slide switch.

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Expansion Interface

ADC BPF

DAC BPF

Signal Processing ASK Tlm Demod

BPF

Cntrl/Status

LPF

MDC

Proc Bus

MII

BPF

Data I/O

ASK Cmd Mod

MII

Ethernet Switch

E1/T1 LIU

Quad Magnetics

Quad Magnetics

Quad Ethernet RJ-45 Ports

Quad E1/T1 RJ-48 Ports

MDC

HSBY I/O

Admin. OH Serial Channel

Relay Controls

Power Conversion

Alarm Bi-level Inputs

µP

Relay

ODU I/F (N-Type)

3

2

2

HSBY/Aux (DB-26)

4

Craft (DB-9)

GND

-V

+V

DC Power

3

Figure 1 ALxxF Functional Block Diagram

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ODU DC Power F1

F2

Power Alarm Fault

CLI Modem

OH/Hsby

Eth Mgmt

Eth 1

T1/ E1 T1/E1 P1 P3

Eth Mgmt

Eth 2

T1/ E1 T1/E1 P2 P4

Figure 2 ALXXF Front Panel

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1.2. Front Panel Interfaces 1.2.1. T1/E1 Ports The T1/E1 ports are 8-pin modular jacks with standard RJ-48 pinouts as shown in Figure 3 and Table 1 below. Transport mode is software configurable to support one to four T1 channels or 1 to 4 E1 channels. Lines are matched to 100 ohm in T1 mode and 120 ohm in E1 mode.

Figure 3 Pin Definition for 8-pin Modular Jack (as seen looking into the port)

Pin

Signal Name

1

RX, Ring, -

2

RX, Tip, +

3

Shield/Return/Gnd

4

TX, Ring, -

5

TX, Tip, +

6

Shield/Return/Gnd

7

NC

8

NC

Table 1 T1/E1 RJ-48 Pinout

1.2.2. Ethernet Transport Ports The two Ethernet transport ports (Enet-1 and Enet-2) provide 10/100BaseT interfaces with standard RJ-45 pinouts. When the IDU is properly configured, the IDU provides transport of Ethernet frames ingressed at these ports over the link to the far side radio. An internal Ethernet switch also provides layer 2 switching functions between these two ports and the far side terminal. The Ethernet PHYs provide MDI/MDI-X cross-connect with auto-detect, so both straight-thru and cross cables are accommodated to any other 10/100 BaseT interface. Ethernet transport is configurable up to 130 Mbps. Note that Ethernet transport will be enabled with a coming firmware update.

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1.2.3. Ethernet Management Ports The two Ethernet management ports (Mgmt-1 and Mgmt-2) provide 10/100BaseT interfaces to the IDU’with standard RJ-45 pinouts. These ports allow management access to the IDU’s internal CPU. An internal Ethernet switch also provides layer 2 switching functions between these two ports and the far side terminal. The Ethernet PHYs provide MDI/MDI-X cross-connect with auto-detect, so both straight-thru and cross cables are accommodated to any other 10/100 Base-T interface. Note that Ethernet-based management is not yet enabled on the prototypes. These functions will be enabled with a future firmware update. 1.2.4. Overhead/Hot Standby Interface The Overhead and Hot Standby signals are provided over a DB-26 interface with connector pinouts and signal assignments as defined in Figure 4 and Table 2 below. 1

9

26

19

Figure 4 Pinout for High-density DB-26 Connector (as seen looking at front panel)

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Pin

Signal Name

Description

1

Chassis Ground

Ground

2

Aux Serial Receive

Aux Serial Channel Rx Data (to IDU)

3

Hot Standby 5V Power

5V Power to HSBY Shelf

4

Hot Standby SPI MISO

SPI communication bus to/from HSBY Shelf

5

Chassis Ground

Ground

6

Hot Standby Serial Transmit

Serial communication to HSBY Shelf

7

Hot Standby Shelf Present

HSBY Shelf present signal

8

Relay 2 COM

Relay 2 COM pin

9

Relay 1 NC

Relay 1 NC pin

10

Aux Serial Transmit

Aux Serial Channel Tx Data (from IDU)

11

Chassis Ground

Ground

12

Hot Standby SPI Clock

SPI communication bus to/from HSBY Shelf

13

Hot Standby 3.3V Power

3.3V Power to HSBY Shelf

14

Hot Standby Serial Receive

Serial communication from HSBY Shelf

15

Chassis Ground

Ground

16

Aux Alarm Input 2

Bi-level alarm 2 input

17

Relay 1 NO

Relay 1 NO pin

18

Relay 2 NC

Relay 2 NC pin

19

Chassis Ground

Ground

20

Hot Standby SPI Sel

SPI communication bus to/from HSBY Shelf

21

Hot Standby 5V Power

5V Power to HSBY Shelf

22

Hot Standby SPI MOSI

SPI communication bus to/from HSBY Shelf

23

Chassis Ground

Ground

24

Aux Alarm Input 1

Bi-level alarm 1 input

25

Relay 2 NO

Relay 2 NO pin

26

Relay 1 COM

Relay 1 COM pin

Table 2 Overhead/Hot Standby Interface Connector Pinout

1.2.5. Command Line Serial Interface The CLI interface presents a standard three-wire RS-232 DCE interface on a female DB-9 connector with connector pinouts and signal assignments as defined in Figure 5 and Table 3 below. The CLI interface is configured as follows:

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• • • • •

Data rate: 57600 bps 1 start bit 8 data bits No parity 1 stop bit 5

1 9

6

Figure 5 Pin Definitions for Female 9 Pin Sub-D Connector (as seen by looking at front panel)

Pin #

Signal Name

1

NC TXD RXD NC GND NC NC NC NC

2 3 4 5 6 7 8 9

Direction

Signal Description

Out In

Transmit Data (from IDU) Receive Data (to IDU)

N/A

Ground

Table 3 CLI Connector Pinout

1.2.6. DC Power DC Power is provided via a three terminal connector, as indicated in Figure 6. A switch internal to the IDU must be set to the desired polarity. For positive voltage operation: • Internal power switch must be set for “+24V” operation • Connect positive terminal of external supply to “+V” terminal of ALXXF • Connect negative terminal of external supply to “-V” terminal of ALXXF. • Connect negative terminal of external supply to “GND” terminal of ALXXF.

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For negative voltage operation: • Internal power switch must be set for “-48V” operation • Connect negative terminal of external supply to “-V” terminal of ALXXF • Connect positive terminal of external supply to “+V” terminal of ALXXF. • Connect positive terminal of external supply to “GND” terminal of ALXXF.

+V

-V

GND

Figure 6 DC Power Connector (as seen from front panel)

Two fuses are accessible from the front panel. One fuse (labeled F1 in Figure 2) provides short circuit protection when the IDU is configured for positive voltage operation; the second fuse (F2) provides short circuit protection when configured for negative voltage operation. In both cases, the fuse protects both the IDU and the ODU. The fuse holders accommodate standard 5 x 20 mm fuses. ALXXF units are delivered with 7A fast-acting fuses installed. A simplified block diagram of the power converter is provided as Figure 7, depicting the function of the polarity selection switches and the positioning of the fuses. In addition to the protection fuses, the production version will also include electronic protection circuitry designed to protect against certain kinds of short-circuit events without resulting in blowing either fuse. (Note that this electronic over-current protection is not yet active in the Prototype Units.) 1.2.7. ODU Interface The N-Type ODU interface multiplexes the following signals: • DC power (with polarity determined by internal switch setting as discussed in Section 1.2.6). • Transmit modulated IF signal at center frequency 350 MHz (to ODU) • Receive modulated IF signal at center frequency 140 MHz (from ODU) • OOK ODU command signal at 5.5 MHz center frequency • OOK ODU telemetry signal at 10 MHz center frequency

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Secondary Converters DC Supply to IDU

+V -V

F1

Pol Sense / Inrush Limiting

Pol Sense/ Inrush Limiting/ OV Prot.

Isolated 5V Converter

F2

GND

DC to ODU

Figure 7 ALXXF Power Converter Simplified Block Diagram

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2. Setup and Operation To setup a link for operation, proceed with the following steps at each end of the link: 1.

Prior to operation, make certain that IDU is configured (via internal switch setting) to DC Power polarity required by the ODU. The factory configuration of the IDU is indicated via marking on the back of the IDU. WARNING: FAILURE TO FOLLOW THIS STEP MAY DAMAGE THE ODU.

2.

Prior to connecting DC power to the IDU, connect the IDU and ODU via a 50 ohm coaxial cable.

3.

Connect the CLI port to a terminal emulator with settings as defined in Section 1.2.5.

4.

Connect an external DC power supply to the IDU front panel interface. Make certain that the polarity of the external supply matches the configuration of the IDU (see Section 1.2.6 for details).

5.

Configure the IDU to the desired transport mode via the text menu interface, as described in Section 3. For example, to configure the IDU for Two T1 Channel Transport, make the following menu selections: • From the Main Menu select “1) IDU Control / Status” • From the IDU Control / Status Menu, select “1) Link Configuration” • From the Link Configuration Menu, select “2” for 2DS1 (T1) operation. All aspects of the IDU (line interfaces, modulation mode, FEC, etc…) are automatically configured from this selection.

6.

Enter “X” repeatedly to return to the Main Menu.

7.

Configure the ODU as desired: • From the Main Menu select “2) ODU Control / Status” • From the ODU Control / Status Menu, configure Tx Power, Tx Channel, and Rx Channel as desired, then enable Tx Power Enable. (Note that the software is currently designed such that ODU PA Tx must be explicitly enabled. The software can be modified to automatically enable the ODU Tx PA upon turn-on if desired by EMS.)

When both ends of the link have been configured to the same (or consistent) configurations, acquisition is automatic on both sides. Many aspects of the IDU status are available via the “Link Status” selection under the “IDU Control /

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Status” menu. ODU status is available via the “Display Status” menu under the ODU Control / Status menu. The table shows the total number of E1’s that can be configured, total data speed for each type of modulation and bandwidth are shown. All bandwidth not used for E1 transport can be assigned for Ethernet transport with the iAM-ALXXF IDU. The Ethernet looks like a single port to the modem. The Ethernet switch can be programmed to rate limit any, each, or all of its ports. If you don’t limit the input rate, it will process what it can based on the modem configuration.

B CHANNEL = Channel Bandwidth (MHz) Modulation

7.0

14.0

28.0

QPSK

4E1 8Mbps

4E1 16Mbps

4E1 34 Mbps

16 QAM

4E1 16Mbps

4E1 34 Mbps

4E1 68 Mbps

4E1 34 Mbps

4E1 68 Mbps

32 QAM

4E1 130 Mbps

64 QAM

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3. CLI Text Menu Control and Status Software Interface The prototype Command Line Interface is a simple scrolling Text Menu interface with structure as depicted in Figure 8. To proceed down any path of the menu hierarchy, enter the indicated alphanumeric followed by the Return key. From anywhere in the menu, proceed back up the hierarchy by entering the letter “X” followed by the Return key.

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Main Menu: 1) IDU Control / Status 2) ODU Control / Status 3) Loopbacks 4) BER Testing 5) Test Signals 6) Utilities 1

IDU Control / Status: 1) Link Configuration 2) Link Status 3) Enable Aggreate Loopback 4) Enable Aggreate BERT 5) Expert Menu 6) Save Current Configuration X) Exit

1 Link Configuration : Capacity 1) 1DS1 2) 1DS1 3) 1DS1 4) 1DS1

Mod Type QPSK 16QAM 32QAM 64QAM

5) 6) 7)

2DS1 2DS1 2DS1

16QAM 32QAM 64QAM

8) 9)

3DS1 3DS1

32QAM 64QAM

10)

4DS1

64QAM

21) 22) 23) 24)

1E1 1E1 1E1 1E1

QPSK 16QAM 32QAM 64QAM

25) 26) 27)

2E1 2E1 2E1

16QAM 32QAM 64QAM

28)

3E1

32QAM

ODU Control / Status: 1) Set TX Enable 2) Set TX Power 3) Set TX Frequency 4) Set TX Channel 5) Set RX Frequency 6) Set RX Channel 7) Display Version S) Save Settings R) Restore Factory U) Update Status X) Exit

2

3

Loopbacks: 1) Modem Loopback Mode 2) Lim A Loopback Mode 3) Lim B Loopback Mode X) Exit

5

4

BER Testing: 1) LIM A BERT Tx Mode 2) LIM B BERT Tx Mode 3) LIM A BERT Rx Line Select 4) LIM B BERT Rx Line Select X) Exit

2 or 3 (Enter Line # 0)

6

Test Signals: 1) Transmit single tone 2) Transmit two tone 3) Sweep single tone 4) Sweep single tone and capture ADC 5) Sweep single tone and capture loopback 6) Sweep single tone and capture receiver 7) Capture ADC 8) Capture loopback 9) Capture receiver A) Capture receiver (Symbols) X) Exit

Utilities: 1) LEDs 2) REAL TIME CLOCK 3) I2C DEVICES 4) IF PROCESSOR 5) MEMORY DUMPS 6) MODEM TEST 7) FLASH UTILITIES X) Exit

2 Link Status: 1) Modem State 2) Modem Configuration 3) Modem Operational Status 4) Modem Link Quality Status 5) Modem BERT Status 6) Loopback/BERT Status 7) LIM A Operational Status 8) LIM B Operational Status 9) LIM A Link Quality Status A) LIM B Link Quality Status B) Overhead Link Quality Stats C) Demod Status D) RS Decoder Status E) Constellation W) Weights R) Reset Statistics X) Exit

LIM Loopback : 1) Disable Loopback 2) Line-Side Digital Loopback 3) Radio-Side Analog Loopback 4) Radio-Side Digital Loopback X) Exit

Figure 8 CLI Text Menu Description

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