HUAWEI TECHNOLOGIES CO., LTD.

OptiX RTN 950 Radio Transmission System

V100R006

IDU Quick Installation Guide (Indoor)

Issue: 02

Date: 2013-10-15

Huawei Technologies Co., Ltd.

Address: Huawei Industrial Base

Bantian, Longgang

Shenzhen 518129

People's Republic of China

Website: http://www.huawei.com

Email: support@huawei.com

No part of this document may be reproduced or transmitted in any form or by any means without prior

written consent of Huawei Technologies Co., Ltd.

Copyright Huawei Technologies Co., Ltd. 2013. All rights reserved.

Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.

All other trademarks and trade names mentioned in this document are the property of their respective

holders.

Notice

The purchased products, services and features are stipulated by the contract made between Huawei and

the customer. All or part of the products, services and features described in this document may not be

within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements,

information, and recommendations in this document are provided "AS IS" without warranties, guarantees

or representations of any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in the

preparation of this document to ensure accuracy of the contents, but all statements, information, and

recommendations in this document do not constitute a warranty of any kind, express or implied.

2

Installation Process

Before You Start Precautions Page 2

Start

Instructions and

Precautions for

Handling Boards

Page 3

Instructions and

Precautions for

Handling Power

Cable Terminals

Page 4

Precautions for

Handling the Toggle

Lever Switch

Page 5

Introduction to the

RTN 950 Equipment Page 9

Installing the RTN

950

Pages

10 to 15

Optional: Installing

the E1 Panel

Pages

15 to 16

Optional: Installing

Transfer Brackets

for IF Jumpers

Pages

17 to 19

Installing Boards Page 20

Installing IDU

Cables

Pages

20 to 34

Checking the

Installation Page 40

End

Installing Power

Cables

Pages

21 to 22

Installing PGND

Cables Page20

Installing Ethernet

Service Cables Page 24

Installing E1 Cables Pages

22 to 23

Installing IF

Jumpers

Pages

25 to 27

Installing XPIC

Cables Page 24

Installing STM-1e

Cables Page 29

Installing Fibers Pages

28 to 29

Installing Orderwire

Phone Cables Page 30

Installing NM

Cables

Pages

29 to 30

Installing

Asynchronous and

Synchronous Data

Cables

Page 32

Installing External

Clock Cables Page 31

Cable Layout

Effectiveness Page 34

Installing External

Alarm Cables Page 33

Installing the

Chassis in the 19-

Inch Cabinet

Pages

10 to11

Installing the

Chassis in the

ETSI Cabinet

Pages

11 to 12

Wall-Mounting the

Chassis

Pages

12 to 14

Desk-Mounting the

Chassis Page 15

Tools for Installation Page 8

Precautions for

Handling IF Cables Page 6

Precautions for

Handling IF

Jumpers

Page 6

Precautions for

Handling IF Boards Page 7

1

Commissioning Process

Powering On the

Equipment Page 35

Start

Configuring the NE

Data (by Using the

Web LCT)

Page 36

Configuring the NE

Data (by Using the

Hand-Held Tool)

Page 36

Aligning the

Antennas

Pages

37 to 39

Checking the Radio

Link Status Page 39

Aligning the Dual-

Polarized Antennas

Pages

38 to 39

Aligning the Single-

Polarized Antennas

Pages

37 to 38

End

2

Precautions

This document provides quick guidelines for hardware installation.

This document does not describe pre-delivery assembly. This document describes only procedures for

onsite installation.

Electrostatic Discharge

Wear ESD gloves or an ESD wrist strap prior to contact

with the equipment or before handling the plug-boards,

boards, and IC chips to prevent damage to sensitive

components caused by electrostatic discharge from the

human body. Ensure that the other end of the ESD wrist

strap is properly grounded.

Binding Cables

Binding intervals between cable ties or optical fiber binding straps inside the cabinet cannot exceed 250

mm. (The distance cannot exceed 200 mm for user cables).

Binding intervals between cable ties for all cables and corrugated pipes outside the cabinet are

determined according to the distance between the two horizontal beams. If the cable trough does not

contain any beams, the binding intervals between cable ties cannot exceed 250 mm.

Pre-installation Check

Check the telecommunications room, cabinet, power supply, ground wires, optical cables, and

associated facilities prior to installation. Start the installation according to the engineering design

documents after verifying that conditions are met.

NOTE

CAUTION

CAUTION

CAUTION

3

Do not hold a board without hand protection. Wear an ESD wrist strip or ESD gloves before handling a board.

Insert filler panels into vacant slots on an NE to prevent foreign matters from getting into the NE, which

may result in faults on the NE.

Boards are fragile and valuable. When handling or placing a board, exercise caution and put it into a

dedicated packing box.

Holding a board without hand protection Wearing ESD gloves Wearing an ESD strip

Hold the front panel of a board with hands.

Instructions and Precautions for Handling Boards

CAUTION

CAUTION

CAUTION

4

Instructions and Precautions for Handling Power Cable Terminals

Do not pick up the tail end of the red latch by using a finger or a screwdriver to avoid damage.

Press the front of the red latch. Properly move the red latch outwards.

1

2

1

2

2

2

1

1

CAUTION

5

Precautions for Handling the Toggle Lever Switch

Turn the toggle lever switch only

after gently pulling it out.

Position and description of the toggle lever switch

I : ON

O: OFF

Turning on the switch

Turning off the switch

Pull the switch out gently. Turn the switch. Release the switch.

Pull the switch out gently. Turn the switch. Release the switch.

1

1

2

2

3

3

1

1

2

2

3

3

CAUTION

21

21

6

Power off the ODU. Connect or disconnect the IF jumper.

Precautions for Handling IF Jumpers

Connect or disconnect an IF jumper only after

powering off the ODU. Do not connect or disconnect an IF jumper when

the ODU is powered on.

Connect or disconnect an IF cable only

after powering off the ODU. Do not connect or disconnect an IF cable when the

ODU is powered on.

Power off the ODU. Connect or disconnect the IF cable.

Precautions for Handling IF Cables

CAUTION

CAUTION CAUTION

321

3

7

Remove the IF

board.

Power off the ODU. Disconnect the IF jumper. Remove or insert the IF board.

Precautions for Handling IF Boards

Remove or insert an IF board only after powering off the ODU.

Insert the IF board.

Do not remove or insert an IF board when the ODU is powered on.

CAUTION

CAUTION

8

Tools for Installation

Network cable tester Coax stripper

Long measuring tape Phillips screwdriver Flat-head screwdriver Adjustable wrench Level

COAX crimping tool Socket wrench Torque wrench Hex key Wire clippers

Wire stripper RJ45 crimping tool Diagonal pliers Cold press pliers Needle-nose pliers

Combination pliers Bayonet wrench

Utility knife Claw hammer Hammer drill Marker

Ladder Electric iron

Antistatic gloves

Heat gun Multimeter

ESD gloves

Binding strap Insulation tape

ESD wrist strap Impact tool

File

Vacuum cleaner

9

1 Ports

Introduction to the RTN 950 Equipment

2 Installation Holes on Both Sides of the Chassis

E1 port

10

11

IF port

ODU power switch Input power port

Synchronous/Asynchronous

data port

External clock/time port

Ethernet service port NM/COM port

Orderwire phone port

External alarm port

Based on different board configurations, the positions of the actual IDU ports may be different from the positions shown in the figure.

Optical port

10 11

Holes for installation in the N63E/19-inch cabinet

Before installing the chassis in the ETSI cabinet, adjust the holes for installing mounting ears based on the type of the cabinet.

Holes for installation in the T63/T66/N66T cabinet

12

12 NE concatenation port

NOTE

NOTE

10

1 Installing the Chassis in the 19-Inch Cabinet

Installation hole

Store the removed screws properly for installing PGND cables.

When tightening floating nuts, ensure a minimum of 25 mm space on the left and right sides of the RTN 950

for ventilation.

Floating nut

Fixing Floating Nuts a

Removing Screws b

Installing the RTN 950

NOTE

NOTE

11

Before installing the chassis in an ETSI cabinet, adjust

the holes for installing mounting ears based on the type

of the cabinet.

Installing the Chassis in the

Cabinet c Installing PGND Cables d

Connect PGND cables by using the removed screws.

Installing Mounting Ears a b

2 Installing the Chassis in the ETSI Cabinet Fixing Floating Nuts

Mounting ears

M6 screw assembly

When tightening floating nuts, ensure a minimum of 25

mm space on the left and right sides of the IDU for

ventilation.

2.00.2 NM

M6

1.40.14 NM

M4

3.00.3 NM

M6 Floating nut

Installation hole

To the ground point on the column of the

cabinet or the indoor ground bar

Install the cable tray if provided.

NOTE

NOTE

12

c Installing PGND Cables d Installing the Chassis in the

Cabinet

Connect PGND cables by using the removed screws.

Removing Mounting Ears a Marking and Drilling Holes (1) b

3 Wall-Mounting the Chassis

8

Place the chassis on the wall and then mark the positions of the holes for installing mounting ears. Drill the holes in the marked positions and install the bolts. After the installation, ensure a minimum of 50 mm space on the upper and lower sides of the IDU for ventilation.

300 mm

1.40.14 NM

M4

2.00.2 NM

M6

To the ground point on the column of the cabinet or the indoor ground bar

Install the cable tray if provided.

NOTE

Installing the Cable Tray (Optional)

13

Rotate mounting ears to 90 degrees and install them in the direction shown in the figure.

c Installing Mounting Ears d Installing the Cable Tray

(Optional)

e f Installation Effectiveness

If the cable tray is provided, install it according to the illustration in the figure. Otherwise, go to Step g.

NOTE NOTE

14

8

When wall-mounting the chassis, place the fan assembly in the lower part of the chassis for heat dissipation.

Marking and Drilling Holes (2) g

Drill 8 mm diameter

holes with a depth

ranging from 52

mm to 60 mm.

Place the equipment on the wall and then mark the positions of the holes for installing mounting ears.

Remove the equipment and drill the holes at the marked positions.

Installing the Chassis on the Wall h Installing PGND Cables i

Fan assembly M6x60 expansion bolt Nut

Big flat washer

Small flat

washer PGND cable

Mark the hole positions.

1.40.14 NM

M4

NOTE

15

Installing Plastic Feet a Installing PGND Cables b

4 Desk-Mounting the Chassis

Do not place any items around the ventilation holes on the two sides of the cabinet to avoid impacts on heat dissipation.

Plastic foot

PGND cable

Connect PGND cables by using the removed screws.

1 Fixing Floating Nuts

Optional: Installing the E1 Panel

Remove mounting ears and install plastic feet.

1.40.14 NM

M4

Floating nut

Installation hole

NOTE

16

2 Fixing the E1 Panel

3 Installing PGND Cables on the E1 Panel

To the ground point on the column of the cabinet or the indoor ground bar

17

Optional: Installing Transfer Brackets for IF Jumpers

1 Installing IF Connectors

Installing 12 IF Connectors a

Installing Two IF Connectors b

1 2

Transfer brackets for two IF jumpers can be installed on walls, but cannot be installed in 19-inch cabinets and ETSI

cabinets.

NOTE

18

Installing Mounting Ears Installing the Transfer Bracket in the Cabinet

Installing Mounting Ears Installing the Transfer Bracket in the Cabinet

2 Installing Transfer Brackets for IF Jumpers

Installing Transfer Brackets for IF Jumpers in 19-inch Cabinets a

Installing Transfer Brackets for IF Jumpers in ETSI Cabinets b

Installing Transfer Brackets for IF Jumpers on Walls c

19

Installing Mounting Ears

Installing the Transfer Bracket on the Wall

Installing Transfer Brackets for 12 IF Jumpers

Method 1 Method 2

Nut Small flat washer Big flat washer

M6x60 expansion bolt

Tapping screw

When installing transfer brackets for two IF jumpers, use the method of installing transfer brackets for 12 IF jumpers.

NOTE

20

Installing Boards

1

Loosen the screws on the filler panel and remove the filler panel.

Hold the ejector levers on the panel with hands and raise them to form an angle of approximately 45 degrees between the ejector levers and the panel. Push the board gently along the guide rail until the board is secure.

Lower the two ejector levers of the board. Tighten the screws on the panel.

Before installing and removing/inserting a board, wear an ESD wrist strap or ESD gloves. Before you insert a

board, ensure that the slot is correct. If it is difficult to insert the board, stop the operation.

2 3 4

When installing a PGND cable in the ETSI cabinet, connect the PGND cable to the ground point on the left side of the chassis.

When installing a PGND cable in the 19-inch cabinet, connect the PGND cable to the ground point of the left mounting ear of the chassis.

1 Installing PGND Cables

Installing IDU Cables

Guide rail

NOTE

21

Insert the power cables into the DC connector based on the pin assignment. You do not need to prepare the power cables on site if they were prepared before delivery.

After fastening a cable, check whether the cable core is exposed outside the power cable connector terminal. If the cable core is exposed, re-route the cable into the power cable connector. If the cable core is still exposed after you re-route the cable, peel the cable again.

2 Installing Power Cables

NEG2(-)

INPUT

RTN2(+)RTN1(+) NEG1(-)

ON

OFF20A32A 32A 20A

ON

OFF

1 2 3 4 1 2 3 4

20A32A 32A 20A

OUTPUT OUTPUTA B

RTN(+) NEG(-)

Check the fuse current of the external power supply.

Check the voltage and polarity of the external power supply.

Recommended Current Value of the

External Fuse

20 A

Rated Voltage of the Input

Power

Allowable Voltage Range

48 V

38.4 V to 57.6 V

60 V

48 V to 72 V

The recommended fuse capacity of 20 A can meet requirements under the maximum power consumption. Customers can compute the fuse capacity according to the actual power consumption. The fuse capacity should be larger than or equal to (total power consumption x 1.5)/(rated voltage x 87.5%). For example, when the rated power supply is -48 V and the total power consumption of the IDU is less than or equal to 420 W, the fuse capacity can be set to 15 A.

NOTE

CAUTION

If the AC power box (ETP 4830) is used, the IDU needs to use the BGND power cable and -48 V power cable that are delivered with the AC power box. For details on the AC power box and its cables, see the IDU hardware description.

1

1

22

Ensure that the circuit breaker of the PDU is set to the OFF state. Insert the DC connector into the power

port of the chassis. Ensure that the two groups of power cables are connected to different wiring terminals,

and then tighten the screws of the power connector and the chassis.

PIU boards in 1+1 hot backup mode

3 Installing E1 Cables

SP3D board

The MD1, ML1, SP3D, and SP3S boards provide the E1 port.

For information about the pin assignment of an E1 cable, see the related table delivered with these E1 cables or the cable part in the Hardware Description. For a 1.6 mm diameter E1 cable, use a type 75-1-1 connector and a 2.5 mm or 1.7 mm COAX crimping tool when assembling the DDF-side connector of the E1 cable.

0.40.03 NM

M2.5

Optional: Connecting E1 Cables to the External Equipment a

NOTE

If an external power box is used, cut off the input of the power box before you connect power cables.

CAUTION

SP3S board

TCU6 board

23

SP3D board

Optional: Connecting E1 Cables to the E1 Panel b

Optional: Connecting E1 Cables to the TCU6 Board c

The TCU6 board, which performs conversion between DB44 ports and RJ45 ports of 6xE1 services, is generally used with the SP3S (120 ohms) board . By using Anea96DB44 E1 cables, the TCU6 board can perform conversion between Anea96 ports and RJ45 ports.

NOTE

24

5 Installing XPIC Cables

The IN port on one XPIC IF board must be connected to the OUT port on the other XPIC IF board.

X-IN

X-OUT

X-IN

X-OUT

4 Installing Ethernet Service Cables

The Ethernet service port supports the

MDI/MDI-X adaptive function. Therefore,

you can assemble either a crossover

cable or a straight-through cable. It is

recommended that you assemble a

straight-through cable.

XPIC IF board

Ethernet board

NOTE

NOTE

The EFP8, EM6T, EM6TA, EM6F, EM6FA, and EMS6 boards provide the FE ports.

The EM6T, EM6TA, EG4, and EG4P boards provide the GE electrical ports.

The ISX2, IFX2, and ISV3 (XPIC function enabled) boards support the XPIC function.

If the XPIC function is disenabled on an ISX2 or IFX2 board, use a short XPIC cable to connect the IN and OUT ports on the board. Otherwise, board performance will be affected. If the XPIC function is disenabled on an ISV3 board, do not use a short XPIC cable to connect the IN and OUT ports on the board. Otherwise, the board performance will be affected.

CAUTION

By default, power over Ethernet is enabled at the 3/P1 and 4/P2 ports of EG4P boards.

If power over Ethernet is not used, this function must be disabled at the ports using the Web LCT or U2000 to prevent

the risks of damaging the interconnected equipment. After this function is disabled, the P1/P2 indicators are off.

CAUTION

25

6 Installing IF Jumpers

Before installing an IF jumper, turn off the ODU switch on the IF board.

If an RG-8U IF cable or a 1/2-inch IF cable is used, an IF jumper is required to connect the IF cable and

IDU; if a 5D IF cable is used, the 5D IF cable is directly connected to the IDU.

When connecting an IF jumper to an IF cable, you must test the connectivity of the IF cable. On the equipment configured with IF 1+1 protection, the IF cable of the active ODU must be connected to the IF jumper of the active IF board, and the IF cable of the standby ODU must be connected to the IF jumper of the standby IF board. If the XPIC IF board is used, the IF cable connected to the vertically polarized ODU must be connected to the IF jumper on the IF board that processes vertically polarized waves, and the IF cable connected to the horizontally polarized ODU must be connected to the IF jumper of the IF board that processes horizontally polarized waves.

IF jumper

IF cable

Installing an IF Jumper a

Optional: Connecting the IF Jumper Directly to the IF Cable b

ODU switch

The ISV3, IF1, ISU2, ISX2, IFU2, and IFX2 boards provide the IF port.

NOTE

CAUTION

Optional: Connecting the IF Jumper to the IF Cable Using a Transfer

Bracket c

26

Installation Effectiveness in the 19-Inch Cabinet

Installation Effectiveness in the ETSI Cabinet

27

Installation Effectiveness on the Wall

Installation Effectiveness of Wall-Mounted Transfer Brackets for 12 IF Jumpers

Installation Effectiveness of Wall-Mounted Transfer Brackets for Two IF Jumpers

28

7 Installing Fibers

Precautions a

When installing or maintaining fibers, do not look into the optical port without eye protection. See Figure 1.

Coil up the inter-office fibers on the ODF and then route them into the cabinet. Do not coil up external fibers

in the cabinet.

Fiber cap

Pluggable optical module Dustproof cap

10 cm

When routing fibers, take proper measures to avoid any damage to fiber connectors

After installation of the fibers, place protective caps on to the idle optical ports, and place fiber caps on to the

idle fibers. See Figure 2.

For a closed corrugated pipe, take protective measures and then route fibers into through corrugated pipe. For

an open corrugated pipe, route fibers through the corrugated pipe and then take protective measures.

After routing fibers through a corrugated pipe, wrap PVC insulation tapes around the cuts of the corrugated pipe.

Do not feed a large number of fibers in a corrugated pipe. It is recommended that you feed not more than sixty

2 mm diameter fibers in an open corrugated pipe and not more than twenty 2 mm diameter fibers in a closed

corrugated pipe (See Figure 3).

The corrugated pipe needs to be routed into the cabinet for approximately 10 cm (See Figure 4).

Figure 1 Figure 2

Figure 3 Figure 4

Fiber with a short

protective tube

NOTE

CAUTION

NOTE

29

9 Installing NM Cables

Installing NM Cables (for a Gateway NE) a

NMS NMS/COM port

The CSH and CST boards provide the NMS/COM port.

Installing Fibers b

SL1D board

8 Installing STM-1e Cables

SL1D board

The CQ1, SL1D, SL1DA, EM6F, EM6FA, EMS6, EG4, and EG4P boards provide the optical port.

The CQ1, SL1D, and SL1DA boards provide the STM-1e electrical port.

30

Installing NM Cables (for Multiple Interconnected NEs at a Site) b

Assemble a crossover cable or a straight-through cable on site.

10 Installing Orderwire Phone Cables

PHONE port

Ensure that the interconnected network cables do not form a loop and the standby CSH/CSTA board is not

connected to another network cable.

The AUX board provides the PHONE port.

NMS/COM

EXT

NOTE

31

11 Installing External Clock Cables

Assembling External Clock Cables Based on the Pin Assignment a

Installing External Clock/Time Cables for the IDU b

CLK/TOD1 port

TOD2 port

CLK/TOD1 Pin Color Relationship

White/Orange

Orange

White/Green

Green

Blue

White/Blue

White/Brown

Brown

1

2

3

6

4

5

7

8

Twisted pair

Twisted pair

Positive transmit end of the external clock

Negative transmit end of the external clock

Negative receive end of the external clock

Twisted pair

Positive receive end of the external clock

Twisted pair

External time 1_P

External time 1_N

External time 2_N

External time 2_P

The CSH and CST boards provide the CLK/TOD1 port and TOD2 port.

32

12 Installing Asynchronous and Synchronous Data Cables

Receives synchronous data signals (TIP).

Pin Assignment

Pin Color Relationship Function

White/Orange

Orange

White/Green

Green

Blue

White/Blue

White/Brown

Brown

1

2

3

6

4

5

7

8

Twisted pair

Twisted pair

Receives synchronous data signals (RING).

Transmits synchronous data signals (TIP).

Transmits synchronous data signals (RING).

Grounding

Receives asynchronous data signals.

Transmits asynchronous data signals.

Twisted pair

Grounding

Assembling Asynchronous and Synchronous Data Cables Based on the

Pin Assignment a

Twisted pair

Installing Synchronous and Asynchronous Data Cables for the IDU b

F1/S1 port

The AUX board provides the F1/S1 port.

33

Assembling External Alarm Cables Based on the Pin Assignment a

13 Installing External Alarm Cables

Installing External Alarm Cables for the IDU b

ALMI port

ALMO port

ALMI Pin Color Relationship

White/Orange

Orange

White/Green

Green

Blue

White/Blue

White/Brown

Brown

1

2

3

6

4

5

7

8

Twisted pair

Twisted pair

External alarm signal input 3

Grounding

External alarm signal input 2

External alarm signal input 1

Twisted pair

Grounding

Twisted pair

Grounding

Grounding

External alarm signal input 4

Positive alarm signal output 1

Negative alarm signal output 1

Positive alarm signal output 2

Negative alarm signal output 2

Positive alarm signal output 1

Negative alarm signal output 1

Positive alarm signal output 2

Negative alarm signal output 2

ALMO

The AUX board provides the ALMI port and the ALMO port.

34

Cable Connections a

14 Cable Layout Effectiveness

Cable Layout Effectiveness b

10

11Power Cables

E1 Cables

PGND Cables

Orderwire Phone Cables

NM Cables

External Alarm Cables IF Jumpers

Fibers/STM-1e Cables

Asynchronous and Synchronous Data Cables

External Clock Cables

Ethernet Service Cables

1

2

3

4

5

6

7

8

9

10

11

For information about how to install XPIC cables, see the "Installing XPIC Cables" part.

NOTE

35

Green indicator: The fan is functioning properly.

Powering On the Equipment

Status Description of Indicators

Indicator Status Description

PWR Constantly on and green The power supply is functioning properly.

Off The power supply fails.

FAN Constantly on and green The fan is functioning properly.

Constantly on and red The fan is malfunctioning.

Off The fan is not powered off.

Check and ensure that the STAT indicators on the system control, switching, and timing board are on in green

color.

Red indicator: The fan is malfunctioning.

Before powering on the equipment, ensure that the installation of the ODU is completed and the ODU switch on the IF board is set to the OFF state.

CAUTION

36

You can use the Web LCT to configure NE data, including basic data of the NE, IF/ODU information of the

radio link, parameters for the IF ports, and parameters for the ODU ports.

NMS/COM

Configuring NE Data (by Using the Web LCT)

Configuring NE Data (by Using the Hand-Held Tool )

Connect the hand-held terminal to the NMS/COM port on the active system control, cross-connect, and timing board.

NMS/COM

You can use the hand-held tool to configure NE data, including basic data of the NE,IF/ODU information of

the radio link, parameters for the IF ports, parameters for the ODU ports, and DCN parameters.

CSH board

CSH board

37

Aligning Antennas

1 Aligning Single-Polarized Antennas

Determine the azimuth of the antenna according to the installation position and height of the antenna. Adjust the elevation of the antenna to the horizontal position.

Connect a multimeter to the RSSI port on the ODU at the local end and measure the voltage value VBNC.

Level adjustment screw

Elevation adjustment screw

The red line of the multimeter is connected to the pin, and the black line of the multimeter is connected

to the inner wall (ground pin).

a

b

c

Retain the remote antenna secure. Adjust the level adjustment screw. At the local end, rotate the antenna widely in the horizontal direction.

If three signal peaks are tracked, adjust the azimuth of the antenna so that the received signal level (RSL) reaches the peak value at position 2.

If two signal peaks are tracked, adjust the azimuth of the antenna to the middle of positions 4 and 5. Then, adjust the elevation of the antenna so that the three signal peaks such as the signals on the line AA' can appear. Adjust the antenna so that the RSL reaches the peak value at position 2.

If one signal peak is tracked, adjust the azimuth of the antenna to the middle of positions 6 and 7. Then, adjust the elevation of the antenna so that the three signal peaks such as the signals on the line AA' can appear. Adjust the antenna so that the RSL reaches the peak value at position 2.

NOTE

38

31

2

B

7

4 5

6

A

B'

A'

C'C

A'A

B B'

C C'

2

4

6 7

1 3

5

Front view of the lines tracked at

different elevations of the antenna RSL value of each line

2 Aligning Dual-Polarized Antennas

Power off the vertically polarized ODUs at both

ends of a radio link, power on the horizontally

polarized ODUs at both ends of the radio link. This

ensures that the antennas at both ends transmit

horizontally polarized signals.

Adjust the azimuth and elevation of the antennas

at both ends by referring to the description in

Aligning Single-Polarized Antennas, and ensure that the main lobes of the horizontally polarized

signals are aligned with the antennas.

Adjust the elevation adjustment screw. At the local end, gently adjust the elevation and azimuth until the

RSL reaches the peak within the tracked range.

Repeat Steps 3 to 4 to ensure that three signal peaks are tracked in both horizontal and vertical directions. When the local RSL reaches the maximum peak value, tighten the local antenna.

Adjust the remote antenna to ensure that the RSL at the local end and the RSL at the remote end reach the peak value. Check the status of the ODU indicator on the IF board. The ODU indicator on the IF board is off. If the ODU indicator on the IF board is yellow and blinks every 300 ms, continue aligning the antenna.

Tighten all the screws of the antennas after the alignment is completed.

If an OMT is used to connect the ODUs to the antenna in direct-mounting mode, align the antenna in the same

method as that for aligning single-polarized antennas. If soft waveguides are used to connect the ODUs to the

antenna in separate-mounting mode, follow the procedure to align the antenna:

NOTE

39

LINK indicator

Checking the Radio Link Status

Use a multimeter to measure the RSL (P1) on the RSSI port of the horizontally polarized ODU at the local

end.

Power on the vertically polarized ODU at the local end. Use a multimeter to measure the RSL on the RSSI

port of the vertically polarized ODU. Release the holder of the feed boom gently, and turn the feed boom

gently until the RSL reaches the minimum value (P2). The calculated XPD1 (XPD1 = P1 - P2) cannot be

less than 30 dB. Record the current angle (D1) of the feed boom.

Power off the horizontally polarized ODUs at both ends of the radio link, and power on the vertically

polarized ODUs at both ends of the radio link. Adjust the azimuth and elevation of the antennas at both ends

by referring to the description in Aligning Single-Polarized Antennas, and ensure that the main lobes of the vertically polarized signals are aligned with the antennas.

Refer to Steps 3 and 4 to ensure that the calculated XPD2 (XPD2 = P3 - P4) is equal to or more than 30 dB.

Record the current angle (D2) of the feed boom.

Repeat Steps 1 to 6 to adjust the feed boom gently (ranging from D1 to D2), and ensure that XPD1 and

XPD2 are equal to or more than 30 dB.

Tighten all the screws of the antennas after the alignment is completed.

Check the status of the LINK indicator on the IF board.

If the LINK indicator is on (green), the radio link is functioning properly.

If the LINK indicator is on (red), check whether the configuration data is correct. If the configuration data is incorrect, configure correct data.

If the LINK indicator blinks yellow at intervals of 300 ms, check whether the antennas are aligned properly. If the antennas are not aligned properly, realign the antennas.

If the LINK indicator is off, check whether the logical units of the IF unit and the ODU have been added on the NMS. If yes, check for a fault in the IF jumper, IF cable, or the ODU.

a

b

c

d

40

Checking the Installation

No. What to Check For

1 The chassis must be installed securely in the position as specified in the engineering design documents.

2 Each chassis component does not have any paint drop, damage, or stain. Otherwise, re-paint or clean the

component.

3 For a board inserted into the chassis, the screws on the front panel are tightened.

4 Filler panels are installed for vacant slots in the chassis.

5 Cable routes comply with the engineering design documents and facilitate maintenance and expansion.

6 Cables are not damaged, broken, or jointed in between.

7 Each core of the cables is tested for connectivity.

8 Cables are properly bound. Cable ties are installed at equal spacing and in the same direction. The excess of

cable ties is trimmed off without remaining rough edges.

9 Signal cables are routed correctly in the cabinet.

10 Cables outside the cabinet are routed as follows:

The cables are placed tidily and are not cross-connected.

If a cabling ladder is used, the cables are bound onto the ladder beam tidily. If the cabling frame is 0.8 m or more higher than the cabinet top, a cabling ladder is available on the cabinet top to support the cables and to

ease stress.

11 Cable turns are smooth and have a great bending radius.

12 Cable labels are filled in correctly and attached securely. They are aligned and face to the

same direction. Preferably, the labels are attached 2 cm away from the connectors.

13 The power cable and ground cable are routed separately from the signal cables.

14 Idle cable connectors are protected. For example, protective caps are installed on the idle connectors.

15 Protective tube for fiber jumpers are routed into the cabinet for 10 cm and bound securely.

16 The cuts of protective tubes for fiber jumpers are smooth. Otherwise, they need to be wrapped by an insulation

tape.

17 Fiber jumpers are bound gently to ensure free move in the cable tie.

18 Connecting points of fiber jumpers are clean. Protective caps (plugs) are installed for idle fiber connectors and

optical ports.

Connecting Cables to a Power Cable Connector

Obtaining Tools, Cables, and a Power Cable Connector 1

41

Appendix

Ruler (optional)

Diagonal pliers Utility knife Phillips screwdriver (M3 screw)

One 0 V black ground cable

One -48 V blue power cable

Power cable connector

Peeling Cables 2

Use the 1:1 peeling indicator on one side of the power cable connector as the peeling length reference.

1

Peeling length reference plane

Use a pair of diagonal pliers to trim off one end of a -48 V power cable. Place the cable on the peeling length reference plane, and use a utility knife to make a mark on the cable according to the 1:1 peeling indicator.

2

12 mm

1:1 peeling indicator (12 mm)

3 Peel the cable using the diagonal pliers.

12 mm

Cable core

4 Repeat steps 1-3 to peel a 0 V ground cable.

Note

If a ruler is available, you can use the ruler to measure a 12 mm peeling length after trimming off one end of a cable.

12 mm

Cable core 1:1 peeling indicator (12 mm)

12 mm

Connecting Cables to a Power Cable Connector

Connecting Cables to the Power Cable Connector 3

42

Appendix

Route a cable into the power cable connector.

1

Power Cable Connector Terminal

Cable

- -48 V power cable (blue)

+ 0 V ground cable (black)

Fasten the cable. 2 Pull the cable slightly. If the cable is loose, fasten it again.

3

After fastening a cable, check whether the cable core is exposed outside the power cable connector terminal. If the cable core is exposed, re-route the cable into the power cable connector. If the cable core is still exposed after you re-route the cable, peel the cable again. After the power switch is turned on, sparks may be generated at the exposed cable core when an inappropriate operation is performed.

Caution

Pull the cable slightly.

Slide the power cable connector's cover to close it. 4

M3 screw

5 Connecting cables to the power cable connector is complete.

All the cables are fastened, and no cable core is exposed outside the power cable connector.

The cover is closed.

HUAWEI TECHNOLOGIES CO., LTD. Huawei Industrial Base Bantian Longgang

Shenzhen 518129

Peoples Republic of China www.huawei.com