Huawei OptiX RTN 320 User manual

Address: Huawei Industrial Base
Bantian,Longgang
Shenzhen 518129
People's Republicof China
Website: http://www.huawei.com
Email: [e-mail]
No part of this document may be reproduced or transmitted in any form or by any means without prior
written consent of HuaweiTechnologies Co., Ltd.
and other Huawei trademarks are trademarksof Huawei Technologies Co., Ltd.
All other trademarks and trade names mentioned in this document are the property of their respective
holders.
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 representationsof 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
recommendationsin this documentdo not constitutea warranty of any kind, express or implied.
HUAWEI TECHNOLOGIES CO., LTD.
0
Issue 04
Date 2020-12-30

Thunderstorms
Do not work with electricalcurrent or work in elevated or exposed locationsduring a thunderstorm.
Microwave
High-power radio frequency signals are harmful. Avoid exposure to transmission from the antennas of
microwave equipment that has the radiation warning symbol ( ). When you are installing or performing
maintenance on an antenna located on a tower that has multiple antennas, avoid exposure to radiation from
other antennas.
Elevated locations
OAU 2A is usuallyinstalled in an elevated location,for example, on the rooftop of a building.For installation
in elevated locations,installationpersonnel must:
•Have the proper training and qualifications,and meethealth requirements.
•Wearhelmets,safety belts, and anti-slip footwear.
•Wearclothingand gloves appropriateto weatherconditions.
•Workin teamsof twoor more.
•Test hoisting tools before use.
•Avoid installationduringextreme weather conditions,such as during thunderstorms,blizzards, or gales.
In addition, all site visitors must wear helmets.
High temperature
If the ambienttemperature reaches 55°C, the surfacetemperatureof an OAU 2A may exceed 70°C.
Therefore, wearprotective gloves whenhandling the OAU 2A. A high-temperaturewarninglabel ( ) is
attachedto each OAU 2A.
Corrosion
Anti-corrosion measuresare required if an OAU 2A is installedin a locationthat is prone to corrosion.Contact
the local Huawei office for details.A locationis prone to corrosion if it is:
•Within3.7 km of an ocean or a salt water lake
•Within3 km of a heavy pollutionsource,such as a smeltingfactory or coal mine
•Within2 km of a medium pollutionsource, suchas a chemical,rubber, or electroplatingplant
•Within1 km of a light pollutionsource, such as a food/leatherprocessingplant or heating boiler
Unpacking
To prevent watervapor from accumulatinginside the device:
•After unpackingan OAU 2A, powerit on within24 hours.
•Do not power off an OAU 2A for more than 24 hours during maintenance.
Handling of OAU 2A or mounting kits
Wearcleangloves whenhandlingthe OAU 2A or mountingkits.
Moving and hoisting heavy objects
To move or hoist heavy objects, use appropriate equipmentand adhere to the followingguidelines:
•All personnel shouldwear helmetsand protective clothes, gloves, and shoes.
•Move heavy objects along a flat obstacle-freepath.
•Do not lift heavy objects by hand. Use appropriateequipmentinstead.
•Whenitemsare hoisted, ensure that those standing nearby are safefrom fallingobjects.
•Use hoisting tools properly. Do not exceed loadallowancesto prevent damageto pulleysor slings.
Lasers
Do not look into an opticalport without eye protection.
Local rules and regulations
If local rules and regulationsrequire that anti-corrosion measuresmust be taken for ground connections,
complywith local rules and regulations.
1
Extreme weather conditions
OAU 2A is usuallyinstalled outdoors.If weatherconditionsare extreme during an installation,personnel
should follow the related local guidelinesand regulationsto safeguardpersonal health and safety.
Safety Precautions

DC power
•Do not install or remove a live power cable. Any contact between the power cable core and a conductorcan generate
electric arc or sparks, whichmay cause fire or eye injury.
•Connectthe powercables correctly to the positive and negative terminalsof the power supplydevice (see circled No.1 in
the figure below).To prevent damage to power cables or devices caused by short-circuits,install a circuitbreaker on the
negative terminalof the power supplydevice (see circled No.2 in the figure below). The recommendedfuse capacityis 10
A to 16 A.
•Do not connectthe OAU 2A to an AC powersupply device. Otherwise,the OAU 2A may be damaged.
•Do not connect the RTN 320 to a DC powersupply device providing powerbeyond the range of –38.4 V to –57.6 V.
Otherwise,the RTN 320 may be damaged.
Do not leave any service cable unconnected
Do not leave any service cable unconnected(see the followingfigure).
If a service port is not in use, remove the cable from it and plug it with a waterproofblock.
IF port protection
If an IF port is not in use, cover it with a protective cap
delivered with the equipment.
Protective cap
RTN(+) RTN(-)
Brown (black): 0 V ground
cable
Blue: -48 V
Powersupply device
SW
2
Safety Precautions
Do not leave any service cable unconnected.

3
Precautions for Local Maintenance
WebLCT
Service access
OAU 2A
GE/NMS
GE
08/09 >>
If the GE (e) port is connectedto an outdoor network cablefor local maintenance,you need to set the GE (e) connectedto the WebLCT as an NMS port by using the NMS, or
configure the network adapter of the PC to enablethe PC to receive and transmit IP packetscarrying DCN VLAN IDs.
For the RTN 320, either the NMS/GE port or the independentNMS port can be connectedto a network cablefor connectionto the NMS, but they cannot both be connectedto
a network cable.
Use a ground clip to ground the outdoor network about 0.5 m to 1 m away from the equipmentroom before leading the cable into the equipmentroom.
Indoor Signal surge
protector
Surge Protect
Ground cable
Ground clip PE
Whenthe OAU 2A is installedon a self-supportingtower, maintenancepersonnel cannotperformance off-tower maintenancethrough WLAN,becausethe OAU 2A is installedat a high position.
It is recommendedthat an outdoor networkcablebe addedto connect the GE/NMS port. This network cablemustbe to a signalsurge protector to enable local maintenanceindoors. During local maintenance,you can
connect a PC to the output end of the signal surge protector to accessand maintainthe NE usingthe WebLCT.

Front view
IF1 Ground
screw
GE3(o) COMBO MIMO2MIMO1
NMS/GE2 (e)
GE1 (e)
IF2
WLAN
module
USB port
compartment
Bottom view
System
indicator Cable trough and
waterproofblocks
Screw of the
maintenance
compartment
Screws of the
USB port
compartment
•Do not keep the USB port compartment open. Close the USB port compartment when no operation is performed.
•Whenclosingthe USB port compartment,ensure that the fall-prevention strip is not pinched by the USB port
compartmentcover.
•If the cable trough is not used,plug the cable holes with waterproofblocks.
•Do not keep the maintenancecompartmentopen.
•Close the maintenancecompartmentafter maintenanceis complete.
DC power
port
NMS
210mm
290mm
102mm
4
Whenthe GE electricalmodule is used, and the network cable lengthis no less than 2 m, a signal lightningsurge
protector mustbe provided to protect devices.
AAppearance and ports
Equipment Components
Equipment Introduction

OT terminal
•The ground terminalcan be connectedto a ground bar or U-shaped ground clip.Connectthe
ground terminal to whichever is the most appropriate for the scenario.
•See the usage instructionsreleased with the ground clip for details.
Ground terminal
Ground cable
Outdoor fiber/cascade cable
DLC/UPC connector
DC power cable and connector
Brown (black): 0 V ground cable
Blue:-48 V
Strip off the sheathof cables accordingto the strippinglengthindicatoron one side of the OAU 2A to expose the
shield layer.
Outdoor network cable
29 mm
Shield layer exposed
14 mm
Sheath reserved
19 mm
Positive and negative
cables exposed
57 mm
Wiresexposed
8 mm
DC power cable
5
Equipment Components
Equipment Introduction
BCables DStripping Length Indicator

Terminate a connectoron the other end of the network
cable, and then test the cable for continuityusing a
network cable tester.
The pin assignmentsof the connectorsat the two
ends must be the same. Outdoor network cables are
straight-through cables.
Optional:Use a multimeterto measurethe impedanceof core wires.The impedancedifferencebetween
core wires mustbe less than 5%.
8
9
Strip off the sheath of the cableaccording to the
peeling indicatoron one side of the equipment
to expose the shieldlayer.
Peeling indicator
29 mm
Stripped
cable
6
Terminating an Outdoor Network Cable with Shielded RJ45 Connectors
RJ45 connectorcrimpingtool Diagonal pliers
Prepare the followingtools.
Prepare an outdoor networkcable and shieldedRJ45 connectors.
1. Core wire
2. Aluminumfoil
3. Braid shield
4. Outer jacket
5. ShieldedRJ45 connector
Strip the cable.
Length of the stripped
cable: 20 mm Strip off the braid shield and
cut the aluminumfoil and
unwantedmaterials.
Remove the outer
jacket.
Arrange the core wires according to the pin assignmentsand cut them neatly (exposing a length of 12 mm).
8: brown
7: whiteand brown
6: green
5: whiteand blue
4: blue
3: whiteand green
2: orange
1: whiteand orange
abc
Whenstripping off the outer jacket, takecare not to damagethe braid shield or aluminumfoil.
12 mm
Cut the core
wires neatly.
Length of each exposed core wire:12 mm
Insert the arranged core wiresinto an RJ45 connectoraccording to the pin assignmentsand crimp the
connectorwiththe crimping tool.
Pin assignmentsof an RJ45 connector
Before crimping,ensure that the core wires are fully inserted in the RJ45 connector.
Use the crimpingtool to crimpthe connectorwith force.
After crimping,verify that the connectorhas been crimped tightly.
Crimp the RJ45 connector.
Cut off the exposed braid shieldand materialsalong the edge of the connector.
Cut off the exposed braid shieldand materials.
Outdoor network cable

Hole 2 (-): Insert a blue -48 V cable into
it.
Ensure that the cable section inserted into each hole is
at least 11 mm in length.
Hole 1 (+): Insert a brown (black) 0 V ground cable into it.
Red cable
lockinglatch
Blue cable lockinglatch
Strip power cables based on the scale.
Insert the power cables.
Pushthe cablelockinglatches on both sides back. Slightlypull the powercables to checkwhether they are
connectedsecurely.
Use a screwdriver to poke the cablelocking latchesout.
•A cable must be inserted in the center of a hole.
•A cable must be perpendicular to a hole.
A cable must be inserted in the center of a hole.
Ensure that the positive and negative cables are correctly connected.
1
3
2
4
Avoid droppingany miscellaneousobjects (especiallymetal scraps) in the maintenance
compartment.Clean up them immediatelyif any.
Wiresexposed
8 mm
Outdoor network cable
29 mm
Sheath reserved
19 mm
DC power cable
Positive and negative
cables exposed
57 mm
Wires
7
Terminating a Ground Cable with an OT Terminal
Strip the ground cable. A: OT terminal
B: ground cable
C: exposed cable conductor
L1: length of the exposed cable
Fit the exposed cableinto the OT terminal. Crimp the OT terminallug.
Mappingbetween the cross-sectional
area of a cableconductor(C) and the
length of an exposed cable(L1)
Crimp the OT
terminal lug.
Cross-sectional
Area of C (mm2)L1 (mm)
1 7
1.5 7
2.5 7
4 8
Whenyou are skillful, you can determine L1
basedon the length of the OT terminal lug.
Whenstriping offthe insulation layer of the
ground cable, take carenot to damage or nick
the metal conductor of the cable. Ensure that the cable conductor does not protrude
more than 2 mm fromthe OT terminal. The crimping impressionmay differdepending
on the crimping tool used.
Terminating Power Cables with a Tool-Less DC Power Connector
If the wires slide outward or are exposed outside the holes,remove
the cables and cut the wires. Then strip and connect the cables again.

PWR
1
4
5
3
Use the WebLCT to configure
NE data.
•The IF2 port is enabledfor the device by default. You are advised to
preferentiallyuse the IF2 port at a 1+0 site.
•For the methodof makingand laying out an IF cable, see the RTN XMC
ODU Quick Installation Guide.
Align antennas.
Check the installation.
2
Connectedto a
power supply
device
1Install an OAU 2A on a wall or pole.
•Determinewhetherto installan OAU 2A on a wall or pole basedon actual
conditions.
•If an OAU 2A needs to be installedon a tower, it is recommendedthat you
install it at the foot of the towerto facilitatemaintenance.
2Install a ground cable.
3
Install an outdoor fiber or network cable.
The GE1(e) or GE2(e) port can be used
to transmit/receive electrical services,
and the GE3(o) or COMBO port can be
used to transmit/receive optical services.
In this example, the GE3(o) port is used.
•Connectan outdoor fiber or network cable to a port in the maintenance
compartment.
•Lay out the outdoor fiber or network cable.
•Attach a yellow label to the fiber or network cable, and write a numberon
the label accordingto the plan.
4
Install a DC powercable.
•Connecta DC power cableto the DC power port in the maintenance
compartment.
•Lay out the DC power cable.
•Selectground points for the DC power cable, and install ground clips.
•Attach a matte white label to the DC power cable.
5
For the methodof installingan
XMC ODU, see the RTN XMC
ODU Quick Installation Guide.
6
Poweron the OAU 2A.
Installation procedure Commissioning procedure
Before installinga cable, bind the cable sectionthat links the cable connectorto
the pole. This will protect the cableconnectorfrom damage.Ensure that the
lengthof cablerunning from the binding pointto the OAU 2A is sufficientto
attach the cableconnectorto a service port on the OAU 2A.
NOTE
GE3(o)
To a NodeB
For the methodof installingan antenna,
follow the antennainstallationguide
delivered withthe antenna. 1
2
3
4
Waterproofground clips and IF cableconnectors.
IF1
Do not remove or insert an IF cable connectorfrom or to the OAU 2A with
power on. Otherwise, human injuries may be caused.
Install an IF cable.
Connectthe IF ports of the OAU 2A and XMC ODU using an IF cable.
Install the device-side ground cable before you climb up the tower.
8
Grounded using
a ground clip
DC
power
cable
DC
power
cable
6
6
6
Installing the OAU 2A
1Installation at a 1+0 Site
You can use an alignment scopeto
align antennas. For details about how
to install an alignment scope,see the
appendix.

PWR
1
4
5
3
For the methodof makingand laying out an IF cable, see the RTN XMC
ODU Quick Installation Guide.
2
Connectedto a
power supply
device
1Install an OAU 2A on a wall or pole.
•Determinewhetherto installan OAU 2A on a wall or pole basedon
actual conditions.
•If an OAU 2A needs to be installedon a tower, it is recommendedthat
you installit at the foot of the tower to facilitatemaintenance.
2Install a ground cable.
3
Install an outdoor fiber or network cable.
The GE1(e) or GE2(e) port can be used
to transmit/receive electrical services,
and the GE3(o) or COMBO port can be
used to transmit/receive optical services.
In this example, the GE3(o) port is used.
•Connectan outdoor fiber or network cable to a port in the
maintenancecompartment.
•Lay out the outdoor fiber or network cable.
•Attach a yellow label to the fiber or network cable, and write a
numberon the label according to the plan.
4
Install a DC powercable.
•Connect a DC power cableto the DC power port in the maintenance
compartment.
•Lay out the DC power cable.
•Selectground points for the DC power cable, and install ground clips.
•Attacha matte white label to the DC power cable.
5
For the methodsof installingan
XMC ODU and a hybrid coupler,
see the RTN XMC ODU Quick
InstallationGuide.
Install IF cables.
Connectthe IF ports of the OAU 2A and each XMC ODU using an IF
cable.
6
Installation procedure
Before installinga cable, bind the cable sectionthat links the cable connector
to the pole. This will protect the cable connectorfrom damage.Ensure that
the length of cable running from the bindingpoint to the OAU 2A is sufficient
to attach the cable connectorto a service port on the OAU 2A.
GE3(o)
To a NodeB
For the methodof installingan antenna,
follow the antenna installationguide
delivered with the antenna.
Waterproofground clips and IF cableconnectors.
IF2
IF1
3
Do not remove or insert an IF cable connectorfrom or to the OAU 2A with
power on. Otherwise, human injuries may be caused.
Install the device-side ground cable before you climb up the tower.
9
Grounded using
a ground clip
DC
power
cable
DC
power
cable
6
6
6
66
Use the Web LCTto configure NE data.
Align antennas.
Poweron the OAU 2A.
Commissioning procedure
1
2
3
Installing the OAU 2A
2Installation at a 2+0 or 1+1 Site
Check the installation.
4
You can use an alignment scopeto
align antennas. For details about how
to install an alignment scope,see the
appendix.

PWR
1
4
5
3
For the methodof makingand laying out an IF cable, see the RTN XMC
ODU Quick Installation Guide.
2
Connectedto a
power supply
device
1Install an OAU 2A on a wall or pole.
•Determinewhetherto installan OAU 2A on a wall or pole basedon
actual conditions.
•If an OAU 2A needs to be installedon a tower, it is recommendedthat
you installit at the foot of the tower to facilitatemaintenance.
2Install a ground cable.
3
Install an outdoor fiber or network cable.
The GE1(e) or GE2(e) port can be used
to transmit/receive electrical services,
and the GE3(o) or COMBO port can be
used to transmit/receive optical services.
In this example, the GE3(o) port is used.
•Connectan outdoor fiber or network cable to a port in the
maintenancecompartment.
•Lay out the outdoor fiber or network cable.
•Attach a yellow label to the fiber or network cable, and write a
numberon the label according to the plan.
4
Install a DC powercable.
•Connecta DC power cableto the DC power port in the maintenance
compartment.
•Lay out the DC power cable.
•Selectground points for the DC power cable, and install ground clips.
•Attach a matte white label to the DC power cable.
5
For the methodof installingan
XMC ODU and an OMT, see the
RTN XMC ODU Quick Installation
Guide.
Install IF cables.
Connect the IF ports of the OAU 2A and each XMC ODU using an
IF cable.
6
Installation procedure
Before installinga cable,bind the cable sectionthat links the cable
connectorto the pole. This will protect the cable connectorfrom damage.
Ensure that the length of cablerunning from the bindingpointto the OAU
2A is sufficientto attach the cable connectorto a service port on the OAU
2A.
GE3(o)
To a NodeB
For the methodof installingan antenna,
follow the antenna installationguide
delivered with the antenna.
Waterproofground clips and IF cable connectors.
IF2
IF1
3
Do not remove or insert an IF cable connectorfrom or to the OAU 2A with
power on. Otherwise, human injuries may be caused.
Install the device-side ground cable before you climbup the tower.
10
Grounded using
a ground clip
DC
power
cable
DC
power
cable
6
66
66
Use the WebLCT to configureNE data.
Align antennas.
Poweron the OAU 2A.
Commissioning procedure
1
2
3
Installing the OAU 2A
3Installation at an XPIC Site
Check the installation.
4
You can use an alignment scopeto
align antennas. For details about how
to install an alignment scope,see the
appendix.

11
PWR GE3(o)
Connectedto a
power supply
device
To NodeB
For the methodof makingand laying out an IF cable, see the RTN XMC ODU Quick
InstallationGuide.
3Install an OAU 2A on a wall or pole.
•Determine whether to install an OAU 2A on a wall or pole based on actual conditions.
•If an OAU 2A needs to be installedon a tower, it is recommendedthat you install it
at the foot of the towerto facilitatemaintenance.
4Install a ground cable.
5
Install an outdoor fiber or network cable.
•Connect an outdoor fiber or network cable to a port in the maintenance compartment.
•Lay out the outdoor fiber or network cable.
•Attacha yellow label to the fiber or network cable, and write a numberon the label
accordingto the plan.
6
Install a DC powercable.
•Connect a DC power cableto the DC power port in the maintenancecompartment.
•Lay out the DC power cable.
•Selectground points for the DC power cable, and install ground clips.
•Attach a matte white label to the DC power cable.
7
Install IF cables.
Connectthe IF ports of the OAU 2A and each XMC ODU using an IF cable.
8
Installation procedure
Waterproofground clips and IF cableconnectors.
Install the device-side ground cable before you climbup the tower.
Follow the antenna installationguide to install the antenna.
1
Install the ODU on to the antenna.
2
For the methodof installingan XMC ODU, see the RTN XMC ODU Quick Installation
Guide.
1
1
2
2
3
4
5
5
6
7
Before installinga cable, bind the cable sectionthat links the cable connectorto the
pole. This will protectthe cable connectorfrom damage.Ensure that the length of
cable running from the bindingpoint to the OAU 2A is sufficientto attach the cable
connectorto a service port on the OAU 2A.
The GE1(e) or GE2(e) port can be used
to transmit/receive electrical services,
and the GE3(o) or COMBO port can be
used to transmit/receive optical services.
In this example, the GE3(o) port is used.
The vertical distancebetween two antennas must meet the requirements specifiedin
the network plan.
Ensure that the poles where two antennasare
installedat a MIMO site are in parallel. Otherwise,
the XPI may fail to be adjustedto a proper range.
8
88
8
Grounded using
a ground clip
DC
power
cable
DC
power
cable
8
Use the WebLCT to configureNE data.
Align antennas.
Poweron the OAU 2A.
Commissioning procedure
1
2
3
Installing the OAU 2A
4Installation at an Intra-NE 2x2 MIMO Site
Check the installation.
4
You can use an alignment scopeto
align antennas. For details about how
to install an alignment scope,see the
appendix.

12
•For the methodof makingand laying out an IF cable, see the RTN XMC ODU Quick
InstallationGuide.
•The length differencebetween the four IF cablesmust not exceed 30 cm.
3Install an OAU 2A on a wall or pole.
•Determinewhetherto installan OAU 2A on a wall or pole basedon actual conditions.
•If an OAU 2A needs to be installedon a tower, it is recommendedthat you install it at
the foot of the tower to facilitatemaintenance.
4Install a ground cable.
5
Install an outdoor fiber or network cable.
•Connect an outdoor fiber or network cable to a port in the maintenance compartment.
•Lay out the outdoor fiber or network cable.
•Attach a yellow label to the fiber or network cable, and write a numberon the label
accordingto the plan.
7
Install a DC powercable.
•Connect a DC power cable to the DC power port in the maintenancecompartment.
•Lay out the DC power cable.
•Selectground points for the DC power cable, and install ground clips.
•Attach a matte white label to the DC power cable.
8
Install IF cables.
Connectthe IF ports of the OAU 2A and each XMC ODU using an IF cable.
9
Installation procedure
Waterproofground clips and IF cableconnectors.
Install the device-side ground cable before you climb up the tower.
Follow the antenna installationguide to install the antenna.
1
Install the ODUs on to the OMT. Connect the OMT and the antenna.
2
For the method of installing an XMC ODU, see the RTN XMC ODU Quick Installation Guide.
6Install MIMO cascadingcables.
Ensure that port MIMO1 connects to port MIMO1, and port MIMO2 connects to port MIMO2.
Beforeinstalling a cable, bind the cable sectionthat links the cable connectorto the pole. This will
protect the cable connectorfrom damage. Ensurethat the length of cable running from the
binding pointto the OAU 2A is sufficientto attachthe cable connectorto a service port on
the OAU 2A.
The GE1(e) or GE2(e) port can be used to
transmit/receiveelectricalservices, and the
GE3(o) or COMBO port can be used to
transmit/receive optical services. In this
example, the GE3(o) port is used.
The vertical distancebetweentwoantennas mustmeetthe requirements specifiedin the
network plan.
Ensure that the poles where two
antennas are installedat a
MIMO site are in parallel.
Otherwise, the XPI may fail to
be adjustedto a proper range.
OMT
OMT
To NodeB
PWR GE(0) MIMO
To NodeB
MIMO cascading
cables.
1
1
2
2
3
3
4
4
55
55
7
7
6
8
8
Connectedto a power
supply device
Connectedto a power
supply device
PWR GE3(0)
MIMO
Grounded using
a ground clip
DC power
cable
DC
power
cable
8
99
9
9
99
99
Use the WebLCT to configureNE data.
Align antennas.
Poweron the OAU 2A.
Commissioning procedure
1
2
3
4
Installing the OAU 2A
4Installation at a 4x4 MIMO Site
Check the installation.
4
You can use an alignment scopeto
align antennas. For details about how
to install an alignment scope,see the
appendix.

Pass the hose clampsthrough the pole mountingbracket and fix the hose clampson a pole using
the screws of the hose clamps. Fasten the OAU 2A box, whichhas a conversion bracket, on the pole mountingbracketusing screws.Then, turn the box gently (in
both the horizontal and vertical directions)to check whether the box
is securely installed.
Huawei has installeda conversion bracket
on each OAU 2A before shipping it.
Press the pole mountingbracketagainst a wall,level the installationlocationusing
a level, and mark locating points using a marker.
Pole mountingbracket
Drill holes and installexpansion bolts in the locating points.
Ensure that each expansion bolt
protrudes from the wall for 8 mmto
12 mm.
Install the pole mountingbracketonto the expansion bolts,place a flat
washer,a spring washer,and a nut on each expansion bolt, and then
tightenthe nuts.
Locating point
Fasten the OAU 2A box, which hasa conversion bracket, on the
pole mountingbracket using screws.Then, turn the box gently
(in both the horizontal and vertical directions)to check whether
the box is securely installed.
1. M6x60 bolt
2. Nut
3. Spring washer
4. Flat washer
5. Expansion sleeve
Fasten the extra portion of the hoseclampsonto
the pole using outdoor bindingstraps.
Huawei has installeda
conversion bracket on each
OAU 2A before shipping it.
1 2 3
1
2
34
13
Installation Reference
Optional: Installing an OAU 2A on a Pole
Optional: Installing an OAU 2A on a Wall

Connectedto a ground bar
Ensure that the OT terminalis correctly installed.
Scratch off the antirustpaint and other coatings at the ground point
on the ground bar. After connectingthe ground cableto the ground
point,treat the ground point with antirust and waterproofmaterials.
Ground screw
Connected to an XMC ODU
For the methodof makingand laying out an IF cable,
see the RTN XMC ODU Quick Installation Guide.
IF1
•Do not remove or insert an IF cable connectorfrom
or to the OAU 2A with power on. Otherwise,human
injuries may be caused.
•Do not power on the OAU 2A until IF cables are
properly connected.
Install the device-side ground cable
before you climbup the tower.
Loose the screw of the maintenancecompartment.
1
90°
Rotate the screw with a torque less than 1 N.m.
Lift the cover of the maintenancecompartment.
2
14
Installation Reference
Installing a Ground Cable Installing an IF Cable
Opening the Maintenance Compartment

Remove the rubber cable trough and waterproof block of the PWRcablehole.
1Loosenthe screw on the desired cableclip at
the secondlayer and remove the cable clip.
2
4Connectthe RJ45 connectorof the outdoor network
cable to the GE1(e) or GE2(e) port.
Wireclip
Shield layer
5
Reinstallthe first layer of waterproof cable
trough securely.
Install a wire clip over the shield layers of the
DC power cable and outdoor network cable.
6
Waterproof
block
Rubber cable trough
Connect the DC powerconnectorto the DC power port.
3
Rubber cable trough
PWRcable hole
The shield layers of all DC power cables and outdoor network cables must be grounded using wire clips.Otherwise,
the cables may be damaged by lightningstrikes.
The shield layer is
not exposed.
The exposed shieldlayer is so long that it extends to
the waterproof cabletrough. The shield layer is not
fastenedusing a wire clip.
The cable is not routed
through the waterproof
cable hole.
Screw the wire clip and ensure that the wire clipis
completelypressed againstthe shield layer withno
contact of the sheath.
15
Installing a DC Power Cable and an Outdoor Network Cable
Installation Reference

Loosen the screw on the desired cableclip at the first layer and remove the cable clip.
1
3
Screw the wire clip so that it is tightly pressed against
the sheathof the outdoor fiber. Ensure that the fiber fits
into and is in good contactwith the waterproof cable
trough.
Connectthe fiber connectorto the GE3(o), COMBO,
MIMO1, or MIMO2 port.
5
6
Install an SFP opticalmodule in the GE3(o),
COMBO, MIMO1, or MIMO2 port.
The port provides the mis-insertionprevention
function.If you cannotinsert the SFP optical
moduleproperly, turn it and insert it again.
4Hoist the outdoor fiber to the installationposition.
Connectthe connectorlabeled"To: RRU" on the
outdoor fiber to the GE3(o), COMBO, MIMO1, or
MIMO2 port of the OAU 2A.
GE3(o) waterproof block
2Remove the waterproofblock in the cable hole of the GE3(o), COMBO, MIMO1, or MIMO2 port. Lower the cover of the
maintenancecompartment.
1
2Check whether cable holes and waterproof blocksmeet requirements.
3Rotate the screw to the lockedposition.
90°
GE3(o)
cable hole COMBO
cable hole
Insert the SFP opticalmodule into
the GE3(o), COMBO, MIMO1, or
MIMO2 port until you hear a click.
Then, slightlypull the puller on
the SFP opticalmoduleto check
whetherit is insertedsecurely.
Insert the fiber connectorinto the SFP optical module
until you hear a click.
Then, slightlypull the fiber connectorto check whether
the connector and SFP opticalmodule are inserted
securely.
Ensure that unused cable holes are
pluggedwith waterproof blocks.
Ensure that eachcable fits into and is
in good contact with the corresponding
waterproofcable trough.
Ensure that the waterproofcable
trough is properly installed.
Otherwise, it does not take effect.
Rotate the screw with a torque less than 1 N.m.
16
MIMO1
cable hole MIMO2
cable hole
Installing an Outdoor Fiber or Cascade Fiber
Installation Reference
Closing the Maintenance Compartment

24/25 >>
Whena device uses SFP GE electricalmodules,it must be usedwith a signal lightningsurge protector.
GE electrical
signal
Signal lightning
surge protector
SFP GE electrical
module
Connect the outdoor network cables to the signal lightning surge protector.
1Use a hose clamp to mount the signal lightning surge protector to the pole.
Unscrew the hose clamp.
Mount the signal lightningsurge protector to the pole.
Screw the hose
clamp.
Outdoor
network cable
Outdoor
network cable
Connectthe surge end of the protector to GE electricalsignals and use SFP GE electricalmodulesto
connect the protect end to the device. The connectionmode is RJ45.
Surge end Protectend
Ground
cable
Wheninstallinga lightning surge protector,
separatethe protector from the RTN device
witha spacingof no less than 10 cm.This
ensures that cables between the protector
and SFP GE electrical modulescan be used
for efficientdecoupling.
2
Install the ground cable for the signal lighting surge protector.
3
Install the OT terminalin the correct direction.
Equipotentialdevice/ground bar
17
Installing a Signal Lightning Surge Protector
Installation Reference

ODU
OAU 2A
12
OAU 2A 12OAU 2A 14
2
OAU 2AOAU 2A 13
1
Select ground points for the outdoor network cable.
Ground the outdoor network cableat the followingpositions:
1. About 0.5 m to 1 m away from the port
2. About 0.5 m to 1 m (1.64 feet to 3.28 feet) before the cableis routed into the equipmentroom or outdoor cabinet
3. About 1 m before the cable leaves the towerand runs towardthe outdoor cabletray
4. About 1 m before the cable leaves the roof cable ladder
Select ground points for the DC cable.
Ground the DC cable at the followingpositions:
1. About 0.5 m to 1 m (1.64 feet to 3.28 feet) before the cable is routed into the equipmentroom or outdoor cabinet
2. About 1 m before the cable leaves the towerand runs towardthe outdoor cabletray
3. About 1 m before the cable leaves the roof cable ladder
OAU 2A
32
1
ODU
OAU 2A
1
OAU 2A
21
18
Selecting ground points
Installation Reference

Select ground points for the IF cable.
Ground the IF cableat the followingpositions:
1. (Optional) Middle of the cableon the towerif the cablesection on the toweris longer than 60 m
2. About 1 m before the cable leaves the tower and runs toward the outdoor cable tray
OAU 2A
ODU
ODU
OAU 2A
1
2
1
Use a box cutter to strip off a section of the cablesheath. Take care not to damagethe shieldlayer.
Install and waterproofthe ground clip.(See the appendixfor the waterproofing method.)
Two types of terminals(ground bar terminal and U-shaped terminal)are available for a ground clip.
Select a terminalas required.
•If a ground clip is installedon a thin cable, secure the ground clip by using the binding wiredelivered
withthe ground clip.
•For details about how to installground clips,see the use instructionsdelivered with the ground clips.
Ensure that the angle betweena PGND cableand a powercable is 15 degrees or less. If the power
cable is routed vertically, route the PGND cablefrom the top downwards. Do not route the ground cable
upwards.
If the IF cableis longer than 60 m, one more ground point is
required for every extra 30 m.
19
Selecting ground points
Installation Reference
Installing a ground clip