Ericsson RBS 3107 Installation Instructions Manual

Installation Instruction

RBS 3107

INSTALLATION INSTR.

Copyright

© Ericsson AB 2006 – All Rights Reserved

Disclaimer

No part of this document may be reproduced in any form without the written
permission of the copyright owner.

The contents of this document are subject to revision without notice due to
continued progress in methodology, design and manufacturing. Ericsson shall
have no liability for any error or damage of any kind resulting from the use
of this document.

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Contents

Contents

1 Introduction 1

2 Prerequisites 1

2.1 Documentation 1

2.2 Tools 3

2.3 Equipment 4

2.4 Conditions 4

3 Procedure 5

3.1 Unpacking and Checking the Material 7

3.2 Positioning and Anchoring the Cabinet 7

3.3 Earth Grounding the Cabinet 10

3.4 Connecting the External Battery Backup (Optional) 11

3.4.1 Installing the Temperature Sensor Cable 12

3.4.2 Installing the External Battery Backup 12

3.5 Connecting the AC Power 16

3.6 Installing the Internal Backup Batteries (Optional) 28

3.6.1 Installing Batteries 28

3.6.2 Connecting the Batteries 30

3.6.3 Securing the Batteries 33

3.7 Connecting Site Transmission from the Transmission
Cabinet (Alternative) 35

3.7.1 Connecting Transmission Cables, Shielded Twisted Pair,

, 110 or 120 , Balanced (T1, J1, E1) - Alternative 1 36

100

3.7.2 Connecting Transmission Cables, Coaxial, 75 ,
Unbalanced (E1) - Alternative 2 40

3.7.3 Connecting Transmission Cables, Coaxial, 75
Unbalanced (E3, T3) - Alternative 3 45

3.7.4 Connecting Transmission Cables, Fiber Optic - Alternative 4 47

3.8 Connecting Site Transmission from Transmission
Equipment Installed in the RBS (Alternative) 48

3.9 Connecting External Alarms 49

3.10 Connecting the Ericsson GPS Solution 53

,

3.11 Connecting RF Cables 53

3.12 Powering Up the RBS 55

3.13 Performing Concluding Routines 56

4 Related Documents 57

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Installation Instruction

5 Revision History 57

5.1 Rev. G to Rev. H 57

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1 Introduction

This document describes how to install the RBS 3107 on site and how to
connect it to external interfaces.

2 Prerequisites

Prerequisites

This section contains information on the documentation, tools, equipment, and
conditions required for the installation procedure.

2.1 Documentation

Ensure that the following documents are read and understood:

• Personal Health and Safety Information

• System Safety Information

• Product Handling

Ensure that the following documents are available:

• Site Installation Documentation

The site installation documentation is produced by the engineering
department.

• Grounding Guidelines for RBS Sites

• Grounding Material Installation Instruction

• Technical Product Description

• Verification of Installation at Site

• Hardware Configuration Data

If applicable:

• Transmission Configurations and Installation

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Installation Instruction

• GPS Solution Synchronisation, WCDMA, EN/LZT 735 0028

Note: References to document numbers are found in Section 4 on page 57.

2

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2.2 Tools

The tools required for the installation of the RBS 3107 are shown in the table
below.

Table 1 Tools Required

Product Name Description Product Number

Personal tool set Personal tools LTT 601 135/1

Prerequisites

Tools included in the
personal tool set, needed
for the installation

or
Cordless hammer drill

(2)

Other tools needed

Open-ended wrench
(u-wrench)

(1)

set

LTT 601 139/1

T8 Torx screwdriver LSA 901 43/6

T15 Torx screwdriver LSA 901 43/2

T30 Torx screwdriver LSA 901 43/5

Screwdriver for bits LSS 103 28/1

Side cutters (side cutting

(1)

pliers)

LSD 901 43/1

Cable cutters LDK 901 15/1

Cable shield cutters LDK 901 18/1

Wire stripper 0.2 – 0.6 mm LSD 901 45/1

Spirit level LMV 901 04/1

Ear protectors LYB 921 50/1

Eye protectors LYB 921 51/1

230 V AC LTT 601 146/1Hammer drill

Cordless 230 V AC LTT 601 147/1

Box socket set with ratchet

LTT 601 138/1

wrench

Torque wrench, 0 – 10 Nm

LTT 601 148/1

with T30 torx bit

Torque set, 20 – 100 Nm LTT 601 141/1

Torque set, 5 – 25 Nm

LTT 601 140/1

with 3/8 in. socket adapter

Open-ended head (u-key),
24 mm

Open-ended head (u-key),
27 mm

Open-ended head (u-key),
32 mm

(1)

(1)

(1)

LSB 107 12/3

LSB 107 12/4

LSB 107 12/5

Eyebolts, M12 SAR 201 120/03

(1) Ericsson name within parentheses.
(2) Hammer drills for voltages other than 230 V AC cannot be ordered from Ericsson.

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Installation Instruction

2.3 Equipment

The instructions in this document describe the installation, or use, of the
following hardware:

• RBS 3107 cabinet

• Earth grounding kit

• Power cables

• RF cables

• Transmission cables

• Alarm cables

• Site LAN cable

2.4 Conditions

The following conditions must be fulfilled before work starts:

Before Going to the Site

Before going to the site, ensure the following:

• Site access permission has been received

• The Site Installation Documentation is available

• All tools and instruments are available

Before Starting the Installation

Before starting the installation, ensure the following:

• The site is prepared according to the Site Installation Documentation

• The existing base frame is undamaged

• The ordered hardware is available

• The AC power supply for the RBS 3107 is installed and tested

• The site earth grounding is installed and tested

• The antenna system is installed and tested

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3 Procedure

This section describes the RBS 3107 installation procedure.

Overview of the RBS 3107

The figure below gives an overview of the RBS 3107.

Procedure

LAN connector

Batteries

RF cable inlet
Temperature sensor
cable connector and
battey cable connector

Figure 1 RBS 3107 Overview

ACCU with power cable connection

DF with cable
inlet for transmission,
alarm and GPS,
including OVP

Ground
connector

P014424C

Workflow

The figure below shows the workflow for installing the RBS 3107.

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Installation Instruction

Figure 2 RBS 3107 Installation Workflow

6

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3.1 Unpacking and Checking the Material

Do!

Tip risk! This equipment has a high center of gravity without all units installed.
Secure the equipment before opening the door.

This section contains information on unpacking and checking the material.

The RBS 3107 cabinet is transported in a crate.

Note: Maximum cabinet weight is 350 kg (excluding batteries).

Procedure

1. Examine the packaging for damage. If it has been damaged, then
immediately inform the transport company.

2. Check that the items delivered correspond to the packing list. For more
information, see Site Installation Documentation

3. Unpack the cabinet.

Note: Allow the cabinet to remain on the pallet until required for

installation.

4. Dispose of the crate in accordance with local regulations.

3.2 Positioning and Anchoring the Cabinet

Note: Before installing the cabinet the site must be prepared for routing

cables. All external cables, such as antenna and transmission cables,
are installed from below, that is, through openings in the bottom of
the cabinet.

To attach the cabinet to the existing base frame, do the following:

Note: The lifting device must be capable of lifting at least 400 kg.

1. Ensure that all packing is removed from the cabinet.

2. Unscrew the five bolts under the upper edge of the cabinet, as shown in the
figure below, using a hexagon 6 mm bit and a ratchet wrench.

3. Pull the cabinet roof a few centimeters towards the cabinet door, then lift it
straight up.

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Installation Instruction

Figure 3 Roof and Cabinet Attachment

4. Screw the four M12 eyebolts into the top of the cabinet, as shown in the
figure below. Tighten them finger-tight.

Figure 4 Eyebolt Attachment

5. Attach lifting straps to the eyebolts and lift the cabinet.



Note: The angle of the lifting strap at the hook must not be more than 90

as shown in the figure below. (This is equivalent to the angles
between the lifting strap and the cabinet roof being at least 45

,



.)

6. Position the cabinet and lower it into the place for installation.

Note: Ensure that cabinet is level in all directions.

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Procedure

Figure 5 Cabinet Lifting

7. Remove the lifting straps and eyebolts.

8. Insert four washers and M16 locking bolts and tighten them to the
appropriate torque (depending on the material to which the cabinet is
attached), using a torque wrench and a 24 mm Open-ended head.

9. Attach the roof by pushing it straight backwards. Screw in the five bolts
and tighten them to a torque of 8 Nm, using a 6 mm hexagon bit and a
torque wrench.

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Installation Instruction

Figure 6 Cabinet and Roof Attachment

3.3 Earth Grounding the Cabinet

Do!

Products not connected to ground risk being damaged by overvoltage or
overcurrent. Always connect products to ground according to instructions.

For general information about earth grounding principles, see Grounding
Guidelines for RBS Sites.

For information about installing earth grounding, see Grounding Material
Installation Instruction.

To connect the earth grounding cable to the RBS 3107, do the following:

1. Remove the six screws holding the Distribution Frame (DF) in place, using
a T30 Torx screwdriver, and push it to the left as shown in the figure below.

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Procedure

Note: Ensure that the factory-installed cables attached to the rear of each

Overvoltage Protection (OVP) module are not loosened.

Figure 7 Earth Grounding Cable

2. Route the earth grounding cable from the site Main Earth Terminal (MET)
to the cabinet earth grounding point.

3. Remove the M8 nut and washer.

4. Connect the earth grounding cable according to the figure above. The
washer must be placed between the cable lug and the nut. Tighten the nut
to 15 Nm, using a torque wrench and a 13 mm socket.

Note: Do not put back the DF yet. The opening is needed for the installation

of the AC mains cable described in section Section 3.5 on page

16. Furthermore, both sides of the DF must be available during the
installation of transmission, alarm, and GPS solution cables. See
Section 3.7 on page 35, Section 3.9 on page 49 and Section 3.10 on
page 53.

3.4 Connecting the External Battery Backup (Optional)

This section describes how to connect external battery backup to the DC filter,
if external battery backup is used. The DC filter is located below the ACCU.

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Installation Instruction

3.4.1 Installing the Temperature Sensor Cable

This section describes how to connect the temperature sensor cables to the
DC filter.

1.

Ensure that the temperature sensor
cable on the upper side of the DC
filter is connected as shown in the
figure.
Route the cable on the left-hand side
of the cabinet, well separated from
other cables, and connect it to the
BFU.

BFU BFU

2.

Loosen the screws and lift up the DC filter.

3.

Connect the temperature sensor
cable from the external batteries to
the D-sub connector of the DC filter.

Note: The figure shows the bottom
of the DC filter.

3.4.2 Installing the External Battery Backup

This section describes how to connect the power cables from the external
battery backup to the DC filter.

P015179B

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Procedure

Caution!

Improper handling of batteries can result in the batteries short-circuiting, which
can result in serious injury due to high energy levels. Exercise the necessary
care when working with batteries.

1.

Ensure that the positive (+) cable is disconnected from the external batteries
before following the instruction below.

2.

Remove the bottom cover plate of the DC filter and the cable glands.

3.

Insert and connect the stripped
cables from the external batteries to
the DC filter.

Note: The figure shows the bottom
of the DC filter.

4.

Position the correct side of the cable clamps for the cross-sectional area of
the cable in accordance with the table below.

Table 2 Cable Clamp Mounting Alternatives

Cable Cross-Sectional Area Cable Clamp Inscription, Facing

Upwards

95 – 185 mm²

16 – 70 mm²

5.

Tighten the nuts to 7–9Nmtorque.

6.

Tighten the cable glands.

CU 95 – 185

CU 16 – 70

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Installation Instruction

7.

Put back the bottom cover plate and tighten the screws.

8.

Position the DC filter and tighten the screws.

9.

Connect the earth grounding cable to the RBS as shown in the figure below.
Tighten the nut to a torque of 15 Nm.

Figure 8 Earth Grounding Cable

10.

Connect the earth grounding, temperature sensor, and signal cables to the
RBS.

11.

Connect the battery cable to EXT BATT.

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Outddoor RBS

BFU

CU*

Temperature sensor
(electically isolated)

BBU

Battery

−

48 V

+24 V

Procedure

DC filter

L <10 m

Temperature
sensor signal

*CU = temerature sensor port

P016172B

Figure 9 Cable Routing

Note: It is important that the cables are positioned according to the figure

below.

Figure 10 Cable Layout

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Bonding
35 mm

2

Signal

DC DC-return

×

min. 2 50 mm

2

P016173A

15

Installation Instruction

3.5 Connecting the AC Power

This section contains instructions for connecting the AC power.

Danger!

Electric shock risk. Avoid both direct and indirect contact with parts connected
to mains power as this is likely to be fatal. Switch off the mains power before
starting work.

Danger!

Improper electrical installation may cause fire or electric shock that is likely to
be fatal. Only a qualified and authorized electrician is permitted to install or
modify electrical installations.

Stop!

Do not install or modify AC or DC powered equipment unless you are a
qualified and authorized electrician. Improper installation work can seriously
damage the equipment.

1. Ensure the following:

That the AC power is switched off at the source.

That the AC mains switch and all circuit breakers on the Alternating Current
Connection Unit (ACCU) are in their OFF positions.

16

That all the switches on Power Distribution Units (PDU) are in their OFF
positions.

That the switches on the Battery Fuse Unit (BFU) are off.

That the DF is removed so that there is easy access to the power cable.

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Procedure

2. Remove the ACCU front cover, by unscrewing the three screws, using a T8
Torx screwdriver, and hook the plate off as shown in the figure below.

Figure 11 ACCU Front Cover Removal

3. Route the power cable through the cable inlet as shown in the figure below.

4. Strip the cable sheath of the power cable to an appropriate length, using
cable shield cutters.

5. Strip about 10 mm of the power cable conductors, using a wire stripper.

6. Connect the cable conductors to the terminal blocks. Tighten the screws to
a torque of 5 Nm, using a torque wrench and a 5.5 mm flat bit.

7. Tighten the cable gland by hand.

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Installation Instruction

Figure 12 Power Cable Connection

8. Check that the terminal block jumper and the jumpers on the terminal
stands are correctly set for the AC power system to be used. If not correctly
set, connect the jumpers according to the circuit diagram inside the front
cover. The alternatives are also shown below.

Note: The protective earth connection (marked PE in the figures) is not

interrupted by the mains switch.

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Procedure

Figure 13 ACCU Connection Terminals and Jumper Positions

Three-Phase + PEN, 346/200 - 433/250 V AC (Factory Setting)

Figure 14

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Installation Instruction

One-Phase + Neutral + Protective Earth, 200 - 250 V AC

Figure 15

One-Phase + PEN, 200 - 250 V AC

Figure 16

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Three-Phase + Neutral + Protective Earth, 346/200 - 433/250 V AC

Figure 17

Procedure

Three-Phase + Neutral + Protective Earth, 208/120 - 220/127 V AC

The picture below is valid for BMG 980 26/2 up to R-state R1D.

Figure 18 ACCU R1D

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Installation Instruction

The picture below is valid for BMG 980 26/2 from R-state R1E and on.

P015920A

Figure 19 ACCU R1E

Three-Phase + PEN, 208/120 - 220/127 V AC

The picture below is valid for BMG 980 26/2 up to R-state R1D.

Figure 20 ACCU R1D

22

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The picture below is valid for BMG 980 26/2 from R-state R1E and on.

Figure 21 ACCU R1E

Procedure

P015921A

Three-Phase + Protective Earth, 200 - 240 V AC

The picture below is valid for BMG 980 26/2 up to R-state R1D.

Figure 22 ACCU R1D

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Installation Instruction

The picture below is valid for BMG 980 26/2 from R-state R1E and on.

P015922A

Figure 23 ACCU R1E

Three-Phase + Neutral + Protective Earth, 200/100 - 240/120 V AC

The picture below is valid for BMG 980 26/2 up to R-state R1D.

Figure 24 ACCU R1D

24

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The picture below is valid for BMG 980 26/2 from R-state R1E and on.

Figure 25 ACCU R1E

Procedure

P015920A

Three-Phase + PEN, 200/100 - 240/120 V AC

The picture below is valid for BMG 980 26/2 up to R-state R1D.

Figure 26 ACCU R1D

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Installation Instruction

The picture below is valid for BMG 980 26/2 from R-state R1E and on.

P015921A

Figure 27 ACCU R1E

Two-Phase + Neutral + Protective Earth, 200/100 - 240/120 V AC

Figure 28 Two-Phase + Neutral + Protective Earth Jumper Settings

26

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Two-Phase + PEN, 200/100 - 240/120 V AC

Figure 29 Two-Phase + PEN Jumper Settings

Procedure

9. Disconnect all power connectors from the front of the ACCU.

10. Ensure that the AC mains switch and the circuit breakers are all in OFF
position.

11. Put back the ACCU front cover.

12. Switch on site power.

13. Switch on ACCU main switch.

14. Switch on the circuit breaker for the Climate Unit (CLU).

15. Measure the output AC voltage from the CLU output connector, using
a digital multimeter.

16. Switch off the circuit breaker for the CLU.

17. Repeat Step 14 on page 27 to Step 16 on page 27 for each circuit breaker
and output connector for Power Supply Unit (PSU) 1, PSU 2, and PSU 3
respectively.

18. If any of the output voltages are outside the 190 – 260 V AC range,
switch off the site power and ACCU mains switches and check the ACCU
strapping before proceeding.

Note: To prevent personal injury or damage to equipment, never connect

19. Check that the output voltage at the service outlet is the same as the local
single-phase voltage.

20. Connect all power connectors to the front of the ACCU.

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a PSU to an ACCU output that is outside the 190 – 260 V AC range.

27

Installation Instruction

3.6 Installing the Internal Backup Batteries (Optional)

This section describes how to install batteries on the battery shelf inside the
RBS cabinet.

Caution!

Improper handling of batteries can result in the batteries short-circuiting, which
can result in serious injury due to high energy levels. Exercise the necessary
care when working with batteries.

3.6.1 Installing Batteries

To install the batteries, do the following:

1. Attach the securing straps at the front and back of the battery shelf. Let the
strap buckles hang down from the front. See figure below.

28

Figure 30 Securing Strap Attachment

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Procedure

Note: The four batteries to be installed are referred to as battery 1, 2, 3, or 4

respectively. The numbers refer to the battery positions on the battery
shelf, where battery 1 is installed on the far left, followed by batteries 2,
3, and 4 in order. See Figure 34 on page 31.

2. Remove the protective caps of each battery.

3. Attach the adhesive pads, shown in the figure below, to the right-hand
sides of batteries 1 and 3.

Figure 31 Adhesive Pad Attachment

4. Attach the temperature sensor holder to battery 2. Remove the inner part
of the holder and attach it according to the figure below.

Figure 32 Temperature Sensor Holder

Note: For each battery the rear strap end must be brought over the battery

to the front.

5. Place battery 1 on the far left of the shelf.

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Installation Instruction

6. Place battery 2, that is, the battery with the temperature sensor holder,
next to battery 1.

7. Attach the temperature sensor to the holder on battery 2. See figure below.

8. Connect the other end of the temperature sensor cable to the BFU. See
figure below.

Figure 33 Battery Temperature Sensor Connections

9. Put battery 3 into the next position.

10. Put battery 4 into the last position on the shelf.

3.6.2 Connecting the Batteries

This section describes how to connect inter-block connectors, gas-evaporating
tubes, and cables to the batteries.

1. Note: If the tools used are not insulated, then do not let them touch any

metal parts of the cabinet.

Attach the inter-block connectors between the batteries as shown in the
figure below. Tighten the bolts to a torque of 8 Nm, using a torque wrench
and a 13 mm socket.

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Procedure

Figure 34 Inter-Block Connections

2. Remove the screw from the mounting hole for a gas-evaporating tube. The
hole is positioned in the cabinet floor as shown in the figure below.

3. Screw the angled nipple into the hole.

4. Attach the end cap on the leftmost battery (battery 1) as shown in the
figure below.

5. Attach the gas-evaporating tubes between the batteries as shown in below.

6. Attach the gas-evaporating tube between the nipple and the rightmost
battery (battery 4) as shown in the figure below.

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Installation Instruction

Figure 35 Gas-Evaporating Tubes

7. Make sure that the battery cable is not yet connected to the BFU.

8. Connect the blue end of the battery cable to the minus pole of the leftmost
battery (battery 1) as shown in the figure below. Tighten the bolt to a torque
of 8 Nm, using a torque wrench and a 13 mm socket.

9. Connect the red end of the battery cable to the plus pole of the rightmost
battery (battery 4) as shown in the figure below. Tighten the bolt to a torque
of 8 Nm, using a torque wrench and a 13 mm socket.

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Procedure

Figure 36 Battery Cable Connections

3.6.3 Securing the Batteries

This section describes how to secure the batteries on each shelf.

1. Place the protective caps over the battery poles as shown in the figure
below.

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Installation Instruction

Figure 37 Protective Caps

2. Tighten the securing straps firmly in stages as shown in the figure below.

Note: Do not let the metal buckles touch any metal parts of the batteries.

1

4

5

3

2

P009234C

Figure 38 Securing Straps

34

3. Connect the battery cable to the BFU. See figure below.

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Procedure

Note: It is recommended that the cables be attached to the handles of

the batteries, using cable ties.

Figure 39 Battery to BFU Connection

3.7 Connecting Site Transmission from the Transmission
Cabinet (Alternative)

This section describes how to connect the RBS 3107 to the transmission
system on site. The external transmission cables are routed through and earth
grounded in cable glands that are mounted in cable entries in the Distribution
Frame (DF). This is necessary to comply with the Electromagnetic Compatibility
(EMC) requirements.

The cable connections depend on the transmission alternative chosen for the
specific site. For more information, see the Site Installation Documentation.

The choice of instructions to follow depends on the type of transmission to be
connected to the cabinet. The three transmission options are as follows:

1. Connecting transmission cables, shielded twisted pair, 100

120 , balanced (T1, J1, E1). See Section 3.7.1 on page 36.

2. Connecting transmission cables, coaxial, 75

Section 3.7.2 on page 40.

, unbalanced (E1). See

, 110 or

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Installation Instruction

3. Connecting transmission cables, coaxial, 75 , unbalanced (E3, T3). See
Section 3.7.3 on page 45.

4. Connecting transmission cables, fiber optic (STM-1). See Section 3.7.4
on page 47.

3.7.1 Connecting Transmission Cables, Shielded Twisted Pair, 100,



110

or 120



, Balanced (T1, J1, E1) - Alternative 1

P014432B

Figure 40 Possible OVP Module Positions

Note: The DF must be loosened to enable access from underneath.

To connect a shielded twisted pair cable to an Overvoltage Protection (OVP)
module, do the following:

Note: The instructions describe the connections to one connection block of

an OVP module.

1. Ensure that the DF is not fastened in place, and that the space beneath it is
accessible. See Section 3.3 on page 10.

2. Remove the rubber sealing in the DF cable entry closest to the OVP
module to be used.

3. Insert the cable gland and tighten it with a 20 mm open-ended wrench.
See 1 in the figure below.

4. Pass at least 170 mm of the cable through the cable gland. See 2 in the
figure below.

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Procedure

Figure 41 Cable Gland Attachment and Cable Routing

5. Strip 170 mm of the outer layer of insulation from the cable, using a wire
stripper. See figure below.

6. Leave 12 mm of the outer screen.

Note: The cable screen must be earth grounded at the DF.

7. Strip 5 mm of the insulation from the ends of the wires.

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Installation Instruction

Figure 42 Stripping Lengths

8. Connect each wire to the terminal block of the OVP module, using a small
screwdriver (<2.5 mm) to open the terminal connectors. See relevant figure
below depending on the OVP variant used.

P014488B

Figure 43 Wire Connections Variant 1

38

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Procedure

P016851A

Figure 44 Wire Connections Variant 2

9. Attach the correct wires to the appropriate connectors in the terminal block.

Note: See the Site Installation Documentation for more information on

the transmission connections.

Figure 45 OVP Module Connection Points

10. Pull the cable back through the cable gland and clamp it by screwing the
cable gland together from underneath. See figure below.

Note: Make sure that the outer screen is in contact with the earth

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grounding of the cable gland.

39

Installation Instruction

Figure 46 Secured Cable with Screen

11. Make a note of the cable data on the cover of the OVP Module.

12. Reinsert the six screws in the DF and tighten them with a T30 Torx
screwdriver.

3.7.2 Connecting Transmission Cables, Coaxial, 75, Unbalanced (E1)

- Alternative 2

40

P014432B

Figure 47 Possible OVP Module Positions

Two kinds of coaxial cables can be used:

• Dual coaxial cable

One coaxial cable consisting of two coaxial parts is connected to one
connection block of an OVP module.

1/1531-COH 109 2073 Uen H 2006-11-06

Procedure

• Single coaxial cables

Two coaxial cables are connected to one connection block of an OVP
module.

To connect a coaxial cable to an Overvoltage Protection (OVP) module, do
the following:

Note: The instructions describe the connections to one connection block of

an OVP module.

1. Ensure that the DF is not fastened in place, and that the space beneath it is
accessible. See Section 3.3 on page 10.

2. Remove the rubber sealing in the DF cable entry closest to the OVP
module to be used.

Note: If single coaxial cables are used, then two cable inlets are needed

for connection to one connection block of an OVP module.

3. Insert the cable gland and tighten it with a 20 mm open-ended wrench.
See 1 in the figure below.

4. Pass at least 170 mm of the cable through the cable. See 2 in the figure
below.

Figure 48 Cable Gland Attachment and Cable Routing

5. Strip 170 mm of the outer layer of insulation from the cable, using a wire
stripper. See figure below.

1/1531-COH 109 2073 Uen H 2006-11-06

41

Installation Instruction

6. If the cable is of dual coaxial type, then leave 12 mm of the outer screen
and strip 15 mm of the insulation of each conductor as shown in the figure
below.

7. Strip 5 mm of the insulation from the ends of the inner conductors.

8. Prepare at least 25 mm of the screens by twisting them as shown in the
figure below.

9. Attach both the screens and two jumpers (thin copper wires) to a single
crimp terminal, as shown in the figure below.

42

Figure 49 Stripping Lengths

10. Connect each wire to the terminal block of the OVP module, using a small
screwdriver (<2.5 mm) to open the terminal connectors. See relevant figure
below depending on the OVP variant used.

1/1531-COH 109 2073 Uen H 2006-11-06

Procedure

Figure 50 Wire Connections Variant 1

Figure 51 Wire Connections Variant 2

P014488B

P016851A

11. Attach the wires and screens to the appropriate connectors in the terminal
block.

Note: See the Site Installation Documentation for more information on

12. Attach the single crimp terminal to the cable lug of the OVP module.

1/1531-COH 109 2073 Uen H 2006-11-06

the transmission connections.

43

Installation Instruction

Figure 52 OVP Module Connection Points

13. Pull the cable back through the cable gland and clamp it by screwing the
cable gland together from underneath. See figure below.

Note: Make sure that the outer screen is in contact with the earth

grounding of the cable gland.

44

Figure 53 Cable Secured

14. Make a note of the cable data on the cover of the OVP Module.

15. Reinsert the six screws in the DF and tighten them with a T30 Torx
screwdriver.

1/1531-COH 109 2073 Uen H 2006-11-06

Procedure

3.7.3 Connecting Transmission Cables, Coaxial, 75, Unbalanced (E3,
T3) - Alternative 3

Figure 54 Possible OVP Module Positions

To connect a coaxial cable to an Overvoltage Protection (OVP) module, do
the following:

1. Ensure that the DF is not fastened in place, and that the space beneath it is

accessible. See Section 3.3 on page 10.

2. Remove the rubber sealing in the DF cable entry closest to the OVP

module to be used.

3. Insert the cable with its cable gland (1) and tighten it with a 20 mm

open-ended wrench (2). See figure below.

Note: The cable is a dual coaxial cable, that is, the cable consists of two

coaxial parts.

1/1531-COH 109 2073 Uen H 2006-11-06

45

Installation Instruction

1

2

P014941A

Figure 55 Cable Gland Attachment and Cable Routing

4. Push both connectors of the dual coaxial cable on to the connectors of
the OVP module.

46

P014942A

Figure 56 Cable Connections

Note: Make sure that the outer screen is in contact with the earth grounding

of the cable gland.

1/1531-COH 109 2073 Uen H 2006-11-06

Procedure

Figure 57 Cable Connections

5. Make a note of the cable data on the cover of the OVP Module.

6. Reinsert the six screws in the DF and tighten them with a T30 Torx
screwdriver.

3.7.4 Connecting Transmission Cables, Fiber Optic - Alternative 4

Note: Handle the fiber optic cables with care and do not exceed the minimum

bending radius of 35 mm.

1. Ensure that the DF is not fastened in place, and that the space beneath
it is accessible.

2. Remove the rubber sealing in the DF cable entry closest to the OVP
module to be used.

3. Remove the end nut from the fixed cable gland on the fiber optic cable and
pass the cable through one the of cable inlets as shown in the figure above.

4. Remove the rubber sealing from the cable entry to be used.

5. Insert the cable gland in of the DF cable entry as shown in the figure above.

6. Reattach the nut and tighten it, using a 26 mm open-ended wrench.

1/1531-COH 109 2073 Uen H 2006-11-06

47

Installation Instruction

Figure 58 Fiber Optic Cables

7. Route the cables inside the cabinet and connect them to the ET-M4 board,
ET-MC41s board or Digital Cross-Connect (DXX).

3.8 Connecting Site Transmission from Transmission
Equipment Installed in the RBS (Alternative)

Transmission equipment can be installed internally in the RBS 3107 cabinet.
There are a several options. The solutions recommended and supported by
Ericsson are described in the following document:

Transmission Configurations and Installation

48

1/1531-COH 109 2073 Uen H 2006-11-06

3.9 Connecting External Alarms

Procedure

P014435C

Figure 59 Possible OVP Module Positions

The DF enables the connection of 12 external alarms, with overvoltage
protection.

To connect an external alarm cable to the RBS 3107, do the following:

Note: The instructions describe the connections to one connection block of

an OVP module.

1. Ensure that the DF is not fastened in place, and that the space beneath it is
accessible. See Section 3.3 on page 10.

2. Remove the rubber sealing in the DF cable entry closest to the OVP
module to be used.

3. Insert the cable gland in the DF cable entry closest to the OVP module to
be used and tighten it with a 20 mm open-ended wrench. See 1 in the
figure below.

4. Pass at least 170 mm of the cable through the cable gland. See 2 in the
figure below.

1/1531-COH 109 2073 Uen H 2006-11-06

49

Installation Instruction

Figure 60 Cable Gland Attachment and Cable Routing

5. Strip 170 mm of the outer layer of insulation from the cable, using a wire
stripper. See figure below.

6. Leave 12 mm of the outer screen.

Note: The cable screen must be earth grounded at the DF.

7. Strip 5 mm of the insulation from the ends of the wires.

50

1/1531-COH 109 2073 Uen H 2006-11-06

170

Procedure

5

12

P014982A

Figure 61 Stripping Lengths

8. Connect each wire to the terminal block of the OVP module, using a small
screwdriver (<2.5 mm) to open the terminal connectors. See relevant figure
below depending on the OVP variant used.

Figure 62 Wire Connections Variant 1

1/1531-COH 109 2073 Uen H 2006-11-06

P014488B

51

Installation Instruction

Figure 63 Wire Connections Variant 2

9. Attach the wires to the appropriate connectors in the terminal block.

Note: See the Site Installation Documentation for more information on the

alarm cable connections.

Figure 64 OVP Module Connection Points

P016851A

52

10. Pull the cable back through the cable gland and clamp it by screwing the
cable gland together from underneath. See figure below.

Note: Make sure that the outer screen is in contact with the earth

grounding of the cable gland.

1/1531-COH 109 2073 Uen H 2006-11-06

Figure 65 Cable Secured

Procedure

P014491C

11. Make a note of the cable data on the cover of the OVP Module.

12. Reinsert the six screws in the DF and tighten them with a T30 Torx
screwdriver.

3.10 Connecting the Ericsson GPS Solution

To install the Ericsson GPS Solution, see the following:

GPS Solution Synchronisation, WCDMA, EN/LZT 735 0028.

3.11 Connecting RF Cables

Several antenna connections are possible, depending on the cell configuration,
Filter Unit (FU) type, and so on. For information about antenna connections to
the RBS cabinet, see the Site Installation Documentation.

Note: All earth grounding of RF cables must comply with the instructions in

Grounding Guidelines for RBS Sites. In addition, the MET must be
positioned as close as possible to the cabinet, and the total length of
the earth grounding system from the RF cables through the MET to the
earth grounding point of the cabinet must not exceed 2 meters.

To connect the Radio Frequency (RF) cables between the antenna system
and the RBS 3107 do the following:

1. Remove the two cable inlet parts.

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53

Installation Instruction

Figure 66 RF Cable Inlet

2. Route the RF cables through the cable inlet.

54

Figure 67 RF Cable Routing

Note: Leave the dust caps on unused connectors on FUs. If no dust caps are

found, inform the person in charge that these are needed.

3. Connect the first cable to the lower connector of the left most FU, and
then the next cable to upper connector. Proceed in the same way with
the other FUs. The order is shown in the figure below. Each cable must
be tightened to a torque of 25 Nm, using a torque wrench and a 32 mm
open-ended head.

1/1531-COH 109 2073 Uen H 2006-11-06

Procedure

2

1

4

3

6

5

P014479C

Figure 68 RF Cables

4. Press each cable into the gasket of the cable inlet in the order indicated
in the figure above.

5. Check that each cable is as straight as possible and make necessary
adjustments. No sharp bends in cables are allowed close to connectors.

Note: Do not exceed the minimum bending radius for the cables.

6. Ensure that the internal cables of the FUs have not been accidentally
loosened.

7. Plug the open holes in the gasket with the supplied plugs.

Note: No holes must be left open.

8. Attach the front part of the cable inlet as shown in the figure above. Tighten
the screws, using T8, T15 and T30 Torx screwdrivers.

3.12 Powering Up the RBS

Products not connected to ground risk being damaged by overvoltage or
overcurrent. Always connect products to ground according to instructions.

Do!

551/1531-COH 109 2073 Uen H 2006-11-06

Installation Instruction

For details on starting the RBS and checking the installation, see Verification
of Installation at Site.

3.13 Performing Concluding Routines

Before leaving the site, complete the following tasks:

1. Clean the site and remove objects such as wrapping paper and cable
offcuts.

2. Dispose of waste in accordance with local regulations.

3. Fill in the Verification Checklist in the Site Installation Documentation binder.

4. Report any faults in accordance with local requirements.

5. Hand over the Site Installation Documentation binder to the person
responsible for the site.

6. Lock all doors and gates to the site.

Environment

Ericsson strongly recommends that installers pay particular attention to the
environment when cleaning the site after RBS installation. In particular, recycle
all waste that can be recycled and sort the rest so that it can be disposed in
accordance with local regulations.

Table 3 Recycling and Sorting Waste

Item

Pieces of cable, low metallic content

Cable insulation from crimping, brazing,
or welding

Packing chips

Foam

Recycle or Sort

Sort as plastic

Polystyrene

Bubble plastic

Cable tie clippings

Paper and wood Recycle or sort as paper

Waste metal from cable ladders

Pieces of cable, high metallic content

Nuts bolts, washers, and screws

Recycle or sort as metal

56 1/1531-COH 109 2073 Uen H 2006-11-06

4 Related Documents

The following documents are related to these Installation Instructions.

• Personal Health and Safety Information, 124 46-2885

• System Safety Information, 124 46-2886

• Product Handling, 11/1551-HRB 105 102/1

• Grounding Guidelines for RBS Sites, 190 08-EN/LZT 735 0018

• Grounding Material Installation Instruction, 1/1531-CRH 102 130/1

Revision History

• Technical Product Description, 1/1551-COH109 2073

• Verification of Installation at Site, 1/1532-COH 109 2073

• Hardware Configuration Data, 2/1551-COH 109 2073

• Transmission Configurations and Installation, 2/1531-COH 109 2073

• GPS Solution, EN/LZT 735 0028

5 Revision History

5.1 Rev. G to Rev. H

This document has been revised with the following changes:

• Connection of external cables to OVP

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57