RBS 3418

Габаритные размеры RBS 3418 (MU)

Table 1 MU Dimensions Unit

Dimensions

Height

176.7 mm

Width

482.5 mm

Depth

270.8 mm

Type

Height (in rack units)

Position in the rack

Front Connection Field

2

Front

Rear Connection Filed

4

Rear

RBS 3418 (RRU)

RRU Dimensions Table 3

RRU Dimensions

Unit

Height

Width

Depth

RRU11

600 mm

382 mm

292 mm

RRU22

470 mm

365 mm

286 mm

RRU22 21IV40

571 mm

365 mm

263 mm

Вес оборудования RBS 3418 (MU) Unit

Weight

Fully equipped (with Rear Connection Field and bracket)

20.5 kg (with PDU) / 19.8 kg (with PSU)

Rear Connection Field (4U)

2.5 kg

Front Connection Field (2U)

2 kg

Support bracket

1.7 kg

RBS 3418 (RRU) Table 4

Weights of RRU11 and RRU22

Unit RRU11 RRU22

Weight (1)

29 kg

(1)

RRU22 AC

23.9 kg (1)

RRU22 21IV40

28.8 kg (2)

29 kg

(1) Including solar shield (2) Including solar shield and fan unit

Установка оборудования RBS 3418 (MU) Access to the MU is necessary for maintenance purposes. RBS 3418 is designed to be mounted in 19-inch racks, according to IEC 60297. It is designed for racks that are equipped with mounting holes for M6 captive nuts, at the universal pitch of 15.875 mm, 15.875 mm, and 12.7 mm. The supported mounting depth, measured from front to rear mounting bars, is 350 mm - 700 mm. The minimum required free rack space height is 4U if there is space between side panels and mounting bars for cabling. Otherwise, additional space of 1/3U is needed. If the Front Connection Field is used with the MU, an additional free space of 2U is needed below the MU subrack. MUs can be installed directly above each other in a rack, no distance is necessary between them. When MU is used with a Front Connection Field, the minimum distance between the wall and the rack shall be 100 mm. This distance shall be 1,000 mm in the case of a Rear Connection Field.

The distance between the ceiling and the cable ladder must be 300 mm, while the distance between the cable ladder and the top of the rack must be at least 200 mm.

In the case of an MU with a Rear Connection Field, a minimum space of 1,000 mm is recommended both in front of and behind the rack to provide sufficient working space. Between two back-to-back 19-inch racks mounted with Rear Connection Fields, a minimum distance of 1,000 mm must be kept to have adequate space to work on the Connection Field side. In the case of an MU with a Front Connection Field, a minimum space of 1,000 mm is recommended in front of the rack, while at least 100 mm free space is required behind the rack for the outgoing airflow. Between two back-to-back 19-inch racks mounted with Front Connection Field, a minimum distance of 100 mm is needed. In a rack with closed doors, the distance between the 19-inch mounting bars and the inner surface of the door must be at least 100 mm. In a rack with no doors (or open doors), a distance of 50 mm must be kept from the mounting bars for the cables. Note: If the door of a 19-inch rack is closed, sufficient airflow must be allowed through the rack for the proper cooling of the MU. For one MU the maximum required airflow is 180 m /h, the typical value is 70 m /h.

If the MU is required to fulfill earthquake zone requirements, then the space between a wall and a rack must be at least 75 mm and the space between racks at least 150 mm. RBS 3418 (RRU) Wall mounting The RRU has to be mounted vertically, close to the antenna. The wall must have a lean of no more than 5 mm/m. The installation requirements are shown in the figure below.

Installation Requirements for Wall Mounting To ensure adequate airflow between the units, allow a minimum of 700 mm of free space above and below each RRU. Allow a minimum of 300 mm of free space between RRUs mounted side by side. Allow a minimum of 500 mm of free space between an RRU and a corner. Note: To prevent hot air from one RRU heating the intake air of another RRU, RRUs must never be installed above one another. Allow a minimum free space of one meter in front of the RRU to avoid obstructing the door and to ensure sufficient working space. RRUs equipped with a Fan Unit also need this space for proper ventilation. Pole mounting The RRU has to be mounted vertically, close to the antenna. The pole diameters are indicated in the following table. Table 6

Pole Diameters

Mounting equipment

Pole Diameter

Supported RRUs

Single fixture

60 - 120 mm

all types

Mounting bracket

35 - 155 mm

RRU22 versions

To ensure adequate airflow between the units, allow a minimum of 700 mm of free space above and below each RRU. Note: To prevent hot air from one RRU heating the intake air of another RRU, RRUs must never be installed above one another. Allow a minimum free space of one meter in front of the RRU to ensure sufficient working space. RRUs equipped with a Fan Unit also need this space for proper ventilation. Note: The number of RRU22 AC units supported by a mounting bracket is limited to two.

Site Layout for Pole Mounting

Тепловыделение RBS 3418 (MU) For -48 V DC power supply MU, the maximum heat dissipation from the MU of the RBS is 0.25 kW. RBS 3418 (RRU) Unit

Maximum Heat Dissipation

RRU11/2 (10 W)

0.13 kW

RRU22 (20 W)

0.16 kW

RRU22 (AC)

0.25 kW

RRU22 (40 W)

0.32 kW

Трансмиссия RBS 3418 (MU) E1, T1, and J1 E1/J1/ T1 connection interfaces available to transmission networks are located on the front part of the Connection Field. The transmission interfaces are connected through an external cable from the rear part of the Connection Field to either the CBU or the ET-MC1 board in the MU subrack. E1(100-120 ohm)/J1/T1 interfaces on the front of the Connection Field are female RJ-45 connectors, and their maximum possible number available for transmission is 12, independently from the type of the Connection Field used (Front or Rear).

E1 Interfaces on the MU

E1(120 ohm) Interfaces on the Connection Field

Питание RBS 3418(MU) -48 V DC The power interface is available on the front part of the Connection Field as a screw terminal, and it is connected to the power interface on the MU subrack through an external cable from the front part of the Connection Field. The power cables from the mains can be connected to the screw terminals on the Connection Field only after removing the metal cover. The interface accepts cables from the mains with a cross-sectional area of up to 4 mm , and a minimum of 2.5 mm is recommended. Only multistrand cables must be used.

Power Interface on the MU

Power Interface on the Connection Field The power for the MU and the RRUs can be supplied from different power systems if required. For sites with short distances between the MU and the RRU, it is recommended that the same power system be used for both. The MU supports -48 V DC power supply through the PDU, +24 V DC or 100~250 V AC power supply through the PSU. Table 13

MU Power Supply Voltage Requirements

Description Nominal voltage

MU with PDU -48 V DC

Operating voltage range -40 to -57 V DC Non-destructive range

0 to -40 V DC and -57.5 to -60 V DC

The recommendations given in this section are based on peak power consumption and gives no information on power consumption during normal operation. For power consumption during traffic, refer to Section 9.2, where the typical and high-load power consumption are given for each configuration. If the recommended fuse size is not available a larger size must be used. The recommended melting fuse type is am-gL-gG in accordance with IEC 60269-1. Circuit breakers must comply with at least Curve 3 (DC) tripping characteristics for indoor equipment, in accordance with IEC 609 34. For details about cable cross-sectional areas, please refer to Section 8.4. The table below shows the fuse or circuit breaker recommendation for the MU of the RBS. Table 14

Fuse Recommendation for the MU

RBS Type

Fuse Rating Recommended for Reliable Operation (A)(1)

Maximum Allowed Fuse Rating (A)(2)

MU

8A

15 A

DC-powered -48 V(3) (1) The recommended fuse rating corresponds to peak load. For an RBS with an internal fuse or circuit breaker selectivity is granted. (2) An absolute maximum fuse class in accordance with RBS design restrictions. (3) The product is equipped with overvoltage protection, but there is no built-in SPD. This section contains the power consumption figures for the MU of the RBS. The power consumption figures shown in this section refer to normal operation during traffic. Both typical and high-load power consumption values are based on an ambient temperature of 25°C. Optional equipment is not included. The table below shows the power consumption values for the MU of the RBS. The values refer to -48 V power supply, +24 V power supply and 100~250 V AC power supply.. Table 15

Unit

Typical and High-Load Power Consumption

(1)

Typical Power Consumption

High-Load Power Consumption

MU with PDU

0.10 kW

0.13 kW

MU with PSU

0.12 kW

0.17 kW

(1) Minimum equipped RBS 3418 (RRU) The RRU22 uses a proprietary power interface available from Ericsson. All cables must be shielded. The shielding must be connected to earth ground on both the RRU22 and the power supply equipment side, otherwise the overvoltage and lightning protection functions cannot work. The power cable conductors have a cross-sectional area of 6 mm for a cable up to 60 m long and 10 mm for a cable between 60 and 100 m long. The GREY wire is the 0 V conductor and the BLACK wire is the -48 V conductor. The figure below shows the RRU22 power interface.

The power for several RRUs can be supplied from different power systems if required. For sites with short distances between an RBS and an RRU use the same power system for both the RBS and RRU. The power supply voltage for both the RRU11 and RRU22 is - 48 V DC. The RRU22 AC also accepts 100-250 V AC. The power supply requirements are described in Table 23 and Table 24. Table 23

RRU DC Power Supply Requirements

Description

RRU22

RRU22 21IV40

Nominal voltage

-48 V DC

-48 V DC

Operating voltage range

-35 - -57.6 V DC

-37 - -57.6 V DC

Non-destructive range

0 - -60 V DC

0 - -60 V DC

The recommendations given in this section are based on peak power consumption and gives no information on power consumption during normal operation. For power consumption during traffic, refer to Table 26, where typical and high-load power consumptions are given for each configuration. As a feature, the RRU has a built-in Class 1 (Type 1) Surge Protection Device (SPD) to protect the equipment in case of lightning and network transients. The recommended fuse or circuit breaker rating is therefore dimensioned for not tripping the fuse or circuit breaker in case of SPD operation. Only if it is accepted that fuses or circuit breakers trip in such situations, the minimum fuse rating could be taken into account. The recommended melting fuse type is am-gL-gG in accordance with IEC 60269-1. Circuit breakers must comply with at least Curve 3 tripping characteristics, in accordance with IEC 609 34. For details about cable cross-sectional areas, please refer to Section 7.4, Section 7.7.1, and Section 7.7.2. The table below shows the fuse or circuit breaker recommendations. Table 25

RRU Fuse/Circuit Breaker Recommendations

Unit

Minimum Fuse Rating [A](1)

Fuse Rating Recommended for Maximum Allowed Fuse Reliable Operation [A](2) Rating [A](3)

RRU22 2120

8

32 (4)

32 (4)

12

32 (4)

32 (4)

RRU22 18IX20 DC-powered RRU22 21IV40 DC-powered (1) The minimum fuse rating corresponds to peak load typically occurring during initial battery charging. For an RBS with an internal fuse or circuit breaker, selectivity is granted. These fuse sizes can only be used if it is acceptable that fuses trip due to lightning or network transients. (2) The recommended fuse ratings take into account that external fuses are not to trip due to lightning or network transients. (3) The absolute maximum fuse class in accordance with RBS design restrictions.

(4) If a circuit breaker is used, 40 A Curve 3 is applicable. The power consumption figures shown in this section refer to normal operation during traffic. Typical power consumption values are based on a realistic, typical traffic distribution that corresponds to an average output power of 40%. High-speed downlink packet access (HSDPA) is not taken into account. Cooling conditions are based on an annual temperature distribution for the Frankfurt (Germany) climate zone. Optional equipment is not included. The high-load power consumption values corresponds to 100% of the maximum output power. Cooling conditions are based on a statistical maximum temperature for the Frankfurt (Germany) climate zone (+30°C).Optional equipment is not included. The table below shows the power consumption values for the RRUs. Table 26

Typical and High-Load Power Consumption

Unit

Frequency

Output Power

Typical Power Consumption

High-Load Power Consumption

RRU11 2110

2100 MHz

10 W

0.10 kW

0.14 kW

RRU22 2120 DC

2100 MHz

20 W

0.14 kW

0.16 kW

0.19 kW

0.22 kW

0.13 kW

0.15 kW

0.19 kW

0.22 kW

0.23 kW

0.29 kW

RRU22 2120 AC RRU22 18IX20 DC

1700/1800 MHz

20 W

RRU22 18IX20 AC RRU22 21IV40

1700/1800 MHz

40 W

Аварии RBS 3418 (MU) The optional external alarm module is available through the XALM interface on the OBIF4 board in the MU subrack. The XALM interface terminates up to 8 external alarm connections and can be programmed for open or short alarms. To protect the XALM unit from overvoltage, the XALM interface is reached through two OVPs located on the front of the Connection Field. The XALM interface on the MU subrack and the OVPs on the Connection Fields are shown in the figures below.

External Alarm Interface on the MU

OVPs on the Connection Field

Заземление RBS 3418 (MU)

The site grounding point is available on the front part of both types of Connection Fields as an M8 stud. On the Front Connection Field, there is an additional grounding bolt (M8 stud), which must be connected with the earth grounding interface located on the MU subrack. The Rear Connection Field does not contain such an additional grounding bolt, since the MU subrack is electrically connected to the Rear Connection Field through the support brackets.

Earth Grounding Interface on the MU

Earth Grounding Interfaces on the Connection Field RBS 3418 (RRU) The RRU must be earth grounded to protect it from overvoltage and lightning strikes. The figure below shows the earth grounding interface. An M8 bolt is used for attaching the grounding cable.

RRU22 Earth Grounding Interface

Антенный интерфейс RBS 3418 (MU) The OIL interface carries traffic and timing signals between the MU subrack and each RRU. The six LC connectors on the OBIF2 (or the OBIF4) board in the MU are connected directly to the RRUs. The OIL interfaces on the MU subrack are shown in the figure below.

OIL Interfaces on the MU RBS 3418 (RRU)

The RRU22 Antenna Interface It is recommended to install the RRU close to the antenna. Connect the RRU to the antenna using jumper cables. Ericsson can provide jumper cables with the length of 1, 2, or 3 meters. The antenna connection interface characteristics of these cables are shown in the table below. Table 21

RRU Antenna Connection Interface Characteristics

Connector Type Jumper Cable Type Cable Connector Type

Cable Product Number

7/16 IEC-169-4 female

TSR 951 70/1

50 1/2-inch coaxial

7/16 male on both ends

TSR 951 70/2 TSR 951 70/3

The antenna cables must be connected as shown in the table below. Table 22

RRU Antenna Cable Connectors

RRU Connectors

Antenna Connectors

ANT1

TX/RX

ANT2

RX

OIL

RRU22 OIL/CPRI Interface In a star configuration, each RRU is connected to the MU with a separate cable via the OPT_IN connector. The OIL interface supports CPRI termination as well. RET The RET interface connects a cable from the RET Unit to the RRU. The figure below shows the RET interface. Note: When the RET connector is not used, seal it together with the protective cap using waterproof self-amalgamating tape.

RRU22 RET Interface

Pos

Product Number

Product Name

(A) Other Available Parts 1A RPM 119 0261/10 1B RPM 119 0261/100 1C RPM 119 0261/25 1D RPM 119 0261/50 1E RPM 119 0261/00500 2A RPM 119 0285/00800 2B RPM 119 0285/01200 3 RPM 513 1736/01200 4 RPM 513 1668/01200 5A RPM 513 2177/00300 5B TSR 899 089/00400 6A RPM 901 271/00250 6B RPM 901 271/01200 7A TSR 899 113/05000 7B TSR 899 113/01000 7C TSR 899 113/20 7D TSR 899 113/70 7E TSR 899 113/150 7F TSR 899 113/250 7G TSR 899 113/350 7H TSR 899 113/500 13A TSR 899 115/20 13B TSR 899 115/70 13C TSR 899 115/150 13D TSR 899 115/250 13E TSR 899 115/350 13F TSR 899 115/500 8A NTM 101 0165/1

10 11 12

Power cable Power cable Power cable Power cable Power cable Connection cable Connection cable Connection Cable Connection Cable Signal cable Connection cable Power cable Power cable Connection cable Connection cable Connection cable Connection cable Connection cable Connection cable Connection cable Connection cable Connection cable Connection cable Connection cable Connection cable Connection cable Connection cable E1 transmission cable assembly NTM 101 276/01200 E1 transmission cable assembly NTM 101 0471/01300 STM-1 optical transfer cable assembly RPM 513 1673/00270 Power cable RNT 992 22/4 LC duplex adapter TSR 899 121/00500 LC to SC patch cord

14

RPM 119 0402/5

15

RPM 119 0402/00500 AC power cable

16A 16B

RPM 901 307/00250 RPM 901 307/01200

8B 9

AC power cable

Power cable Power cable

Description

Outdoor DC cable Outdoor DC cable Outdoor DC cable Outdoor DC cable Outdoor DC cable External alarm cable for Front CF External alarm cable for Rear CF For site LAN MP-conn field EC bus Between XALM and fan Power cable (Front CF) Power cable (Rear CF) OIL jumper cable for RRU22, 5m OIL jumper cable for RRU22, 1m OIL jumper cable for RRU22, 20m OIL jumper cable for RRU22, 70m OIL jumper cable for RRU22, 150m OIL jumper cable for RRU22, 250m OIL jumper cable for RRU22, 350m OIL jumper cable for RRU22, 500m OIL jumper cable for RRU11, 20m OIL jumper cable for RRU11, 70m OIL jumper cable for RRU11, 150m OIL jumper cable for RRU11, 250m OIL jumper cable for RRU11, 350m OIL jumper cable for RRU11, 500m Connection cable for CF plate with 4 RJ45 (also see plate) Connection cable for CF plate with 8 RJ45 (also see plate) Connection cable for CF plate with 2 optical SC connectors (also see plate) Power cable Female-to-female LC duplex adapter OIL cable to connect with customer optical fibre with SC termination AC power cable to connect the power supply to the PSU or ACCU, 5m AC power cable to connect the PSU to the ACCU, 0.5m Power cable Power cable