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Huawei RRU3931E, Installation Manual

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Figure 1-19

 Fitting a RRU3931E onto a Mounting bracket

NOTICE

The narrow space of the RRU3931E toward the wall allows you only to fit the RRU3931E
onto the Mounting bracket in barehanded way, instead of using the attachment plate hander.
Do gently in the whole process.

----End

1.7 Installing Cables

This section describes the procedure and precautions for installing cables.

1.7.1 Cabling Requirements

Cables must be routed according to the specified cabling requirements to prevent interference
between signals.

NOTE

If a cable listed below is not required, skip the cabling requirements of the cable.

General Cabling Requirements

The bending radius of the cables must meet the following specifications:

RRU3931E
Installation Guide

1 RRU3931E Installation Guide

Issue Draft A (2016-03-30)

Huawei Proprietary and Confidential

Copyright © Huawei Technologies Co., Ltd.

21

Summary of Contents for RRU3931E

Page 1: ...RRU3931E V100R011C10 Installation Guide Issue Draft A Date 2016 03 30 HUAWEI TECHNOLOGIES CO LTD ...

Page 2: ...e 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 ensur...

Page 3: ...ble Connections 23 1 7 3 Opening the Maintenance Cavity Covers 24 1 7 4 Installing a Power Cable 25 1 7 5 Installing an CPRI Fiber Optic Cable 27 1 7 6 Optional Installing an CPRI Fiber Optic Cable for Cascading 29 1 7 7 Closing the Maintenance Cavity Covers 30 1 7 8 Installing a PGND Cable 31 1 7 9 Optional Installing an RF Jumper 33 1 8 Optional Replacing the Internal Antenna with External Anten...

Page 4: ...a Power Cable 53 1 11 5 Small Cell Engineering Label 56 1 11 6 Attaching a Sign Plate Label 57 1 11 7 SN Collection Template 59 RRU3931E Installation Guide Contents Issue Draft A 2016 03 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd iii ...

Page 5: ...installation engineers l System engineers l Site maintenance engineers Organization 1 1 Changes in RRU3931E Installation Guide1 1 Changes in RRU3931E Installation Guide This section describes the changes in RRU3931E Hardware Description 1 2 Installation Preparations1 2 Installation Preparations This section describes the preparations for installation Before starting the installation you must get t...

Page 6: ...g the Hardware Installation This section describes how to check the hardware installation after a RRU3931E is installed 1 10 Performing a Power On Check1 10 Performing a Power On Check This section describes the procedure for performing a power on check on a RRU3931E 1 11 References1 11 References This section describes reference information and common operations involved during installation 1 1 C...

Page 7: ...w to replace the RRU3931E internal antenna with external antennas 1 9 Checking the Hardware Installation This section describes how to check the hardware installation after a RRU3931E is installed 1 10 Performing a Power On Check This section describes the procedure for performing a power on check on a RRU3931E 1 11 References This section describes reference information and common operations invo...

Page 8: ...e greater than 10 m Do not install a RRU3931E along a highway or railway or on the mountain top tower standalone pole in a suburban area or open field or standalone rooftop in a non urban area Requirements for the Upper level Circuit Breaker Slow blow fuses of the gL DIN VDE gG IEC class in accordance with IEC60269 1 are recommended Fuses of the same specifications must be configured for L and N w...

Page 9: ...ounding Huawei by default uses a three core power cable to connect a RRU3931E and external power supply equipment The power supply side must ensure that the PE wire of the three core power cable can be properly grounded In outdoor installation scenarios or outdoor cabling scenarios PGND cables must be used to guarantee the surge protection and grounding for the ground terminals of the mounting kit...

Page 10: ...n methods and safety precautions before performing any operations Before starting the installation pay attention to the following items l The customer s technical engineers must be trained by Huawei and be familiar with the proper installation and engineering methods l The number of required installation personnel depends on the engineering schedule and installation environment Generally three to ...

Page 11: ...belt Wall mounted Installation In wall mounted installation scenarios note the following l The wall has a capacity of bearing at least four times the weight of the RRU3931E to be installed without damage l Expansion bolts must be torqued to 28 N m to ensure the bolts work properly without causing cracks on the wall Figure 1 2 illustrates a wall mounted RRU3931E RRU3931E Installation Guide 1 RRU393...

Page 12: ...rance requirements for installing a RRU3931E on a pole or wall Figure 1 3 shows the recommended installation clearances around a RRU3931E Figure 1 3 Recommended installation clearances around a RRU3931E RRU3931E Installation Guide 1 RRU3931E Installation Guide Issue Draft A 2016 03 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 8 ...

Page 13: ...within 24 hours If the RRU3931E is powered off for maintenance restore power to it within 24 hours Context NOTE When transporting moving or installing the equipment components or parts you must l Prevent them from colliding with doors walls shelves or other objects l Wear clean gloves and avoid touching the equipment components or parts with bare hands sweat soaked gloves or dirty gloves RRU3931E ...

Page 14: ...against the packing list If Then The type and quantity tallies with the packing list Sign the Packing List with the customer There is any shipment shortage or wrong shipment Fill in and submit the Cargo Shortage and Mishandling Report There is damaged shipment Fill in and submit the Article Replacement Report NOTICE To protect the equipment from damage keep the unpacked equipment and packing mater...

Page 15: ...from the surface of the RRU3931E See Figure 1 5 NOTE Before removing the backup SN label photograph it Figure 1 5 Removing the SN label 1 Backup SN label Step 2 Record the SN by using the template described in section 1 11 7 SN Collection Template and report it to the RRU3931E commissioning personnel End 1 5 Installation Process This section describes the process for installing a RRU3931E The proc...

Page 16: ...ss for installing a RRU3931E 1 6 Installing a RRU3931E This section describes the procedure and precautions for installing a RRU3931E 1 6 1 Mounting Kits This section describes the kits for mounting a RRU3931E on a pole or wall RRU3931E Installation Guide 1 RRU3931E Installation Guide Issue Draft A 2016 03 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 12 ...

Page 17: ...nting Bracket Figure 1 8 shows the appearance of a Mounting bracket Figure 1 8 Mounting bracket 1 Hole for a fastening screw 2 Mounting hole for an expansion bolt 3 Mounting hole for a steel belt RRU3931E Installation Guide 1 RRU3931E Installation Guide Issue Draft A 2016 03 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 13 ...

Page 18: ... steel belts 1 Visible window NOTE Before installing a steel belt check the rotation axis from the visible window If the rotation axis is not connected to the end of the bolt loose the bolt and adjust the rotation axis to the end of the bolt The position of the rotation axis is shown in Figure 1 11 Step 2 Fit the Mounting bracket onto the target pole See Figure 1 10 RRU3931E Installation Guide 1 R...

Page 19: ...connected to the end of the bolt as shown in Figure 1 11 Figure 1 11 Position of the rotation axis 2 Partially tighten each steel belt with the force not less than 50 N bend it by 180 and press the steel belt at turns firmly See Figure 1 12 Figure 1 12 Tighten steel belts RRU3931E Installation Guide 1 RRU3931E Installation Guide Issue Draft A 2016 03 30 Huawei Proprietary and Confidential Copyrigh...

Page 20: ...le window If the rotation axis is close to the end of the bolt remove the steel belt and fasten it again See Figure 1 13 Figure 1 14 Check the rotation axis status 1 Rotation axis Step 3 Fit the RRU3931E onto the Mounting bracket and use an M6 hex key screwdriver to torque the screw to 5 N m See Figure 1 15 RRU3931E Installation Guide 1 RRU3931E Installation Guide Issue Draft A 2016 03 30 Huawei P...

Page 21: ...e and precautions for installing a RRU3931E on a wall Procedure Step 1 Place the Mounting bracket against the wall use a level to verify that the mounting bracket is placed horizontally and use a marker to mark anchor points See Figure 1 16 RRU3931E Installation Guide 1 RRU3931E Installation Guide Issue Draft A 2016 03 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 17 ...

Page 22: ... eye contact with dust take adequate preventive measures when drilling holes Step 2 Drill holes at the anchor points and install expansion bolts See Figure 1 17 RRU3931E Installation Guide 1 RRU3931E Installation Guide Issue Draft A 2016 03 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 18 ...

Page 23: ...on bolt and vertically insert it into each hole 4 Use a rubber mallet to hit the expansion bolts until the entire expansion sleeve is in each hole 5 Remove the M10 80 bolt nut spring washer and flat washer in sequence NOTICE Level the front of each expansion sleeve with the wall after disassembling an expansion bolt Otherwise the mounting bracket will not be securely installed on the wall Step 3 F...

Page 24: ...l fixture Step 4 Fit the RRU3931E onto the Mounting bracket and use an M6 hex key screwdriver to torque the screw to 5 N m See Figure 1 19 RRU3931E Installation Guide 1 RRU3931E Installation Guide Issue Draft A 2016 03 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 20 ...

Page 25: ...dure and precautions for installing cables 1 7 1 Cabling Requirements Cables must be routed according to the specified cabling requirements to prevent interference between signals NOTE If a cable listed below is not required skip the cabling requirements of the cable General Cabling Requirements The bending radius of the cables must meet the following specifications RRU3931E Installation Guide 1 R...

Page 26: ...If these positions are inevitable cables must be protected with protection pipes l Cables must be routed away from heat sources or heat insulation materials must be added between cables and heat sources l Sufficient slack must be provided in cables at turns or the position close to a device facilitating cable and device maintenance The recommended slack is 0 1 m l AC power cables and PGND cables m...

Page 27: ...cables l The operating temperature of fiber optic cables ranges from 40oC to 60oC If the current temperature is out of the range additional protection measures must be taken or the cable routing must be changed l Cables must be routed in an untangled and orderly fashion l Fiber optic cables must not be bound at turns l Fiber optic cables cannot be stretched with too much force or stepped on and th...

Page 28: ...s through cable holes on the same side of ports and do not cross cables 1 7 3 Opening the Maintenance Cavity Covers This section describes the procedure and precautions for opening the maintenance cavity covers of a RRU3931E Procedure Step 1 Use an M6 hex key screwdriver to loosen the captive screw on both the maintenance cavity covers Open the maintenance cavity covers Figure 1 21 shows the maint...

Page 29: ...n describes the procedure and precautions for installing a power cable for a RRU3931E The power cable connects the RRU3931E and external power supply equipment Context Table 1 2 lists the specifications of a power cable RRU3931E Installation Guide 1 RRU3931E Installation Guide Issue Draft A 2016 03 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 25 ...

Page 30: ...ations Procedure Step 1 Make a power cable l Cut the cable to a length suitable for the actual cable route l Add a cord end terminal to one end of the cable by following instructions provided in section 1 11 4 Assembling a Tool less Female Connector Pressfit Type and a Power Cable1 11 4 Assembling a Tool less Female Connector Pressfit Type and a Power Cable At the other end add a terminal that mat...

Page 31: ... 1 7 5 Installing an CPRI Fiber Optic Cable This section describes the procedure and precautions for installing an CPRI fiber optic cable Context l The single mode optical modules to be installed must match the data rate at the optical ports l Do not twist bend stretch or squeeze fiber optic cables during installation l The cable route depends on actual requirements RRU3931E Installation Guide 1 R...

Page 32: ...oof cap from the optical fiber connector tidy the optical fibers and insert the DLC connector into the optical module See Figure 1 23 Figure 1 23 Installing a fiber optic cable End Follow up Procedure 1 Route the cable by following instructions provided in section 1 7 1 Cabling Requirements 1 7 1 Cabling Requirements and then use cable ties to bind the cable 2 Attach labels to the installed cables...

Page 33: ...ons on an optical module Therefore optical modules must be connected to fiber optic cables within 20 minutes after being unpacked Procedure Step 1 For both RRU3931Es remove the dustproof cap from the CPRI0 or CPRI1 port Keep the cap secure Step 2 For both RRU3931Es insert an optical module into the CPRI0 or CPRI1 port and remove the dustproof cap from the optical module Step 3 Remove the dustproof...

Page 34: ...ng a Sign Plate Label 1 7 7 Closing the Maintenance Cavity Covers This section describes the procedure and precautions for closing the maintenance cavity covers of a RRU3931E Procedure Step 1 Insert waterproof blocks into vacant cable troughs in both the cabling holes See Figure 1 25 CAUTION Ensure that cables or waterproof blocks are properly inserted into troughs RRU3931E Installation Guide 1 RR...

Page 35: ...he screws on the covers to 4 8 N m See Figure 1 26 Figure 1 26 Closing the maintenance cavity covers End 1 7 8 Installing a PGND Cable This section describes the procedure and precautions for installing a PGND cable RRU3931E Installation Guide 1 RRU3931E Installation Guide Issue Draft A 2016 03 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 31 ...

Page 36: ...e actual cable route l Add an OT terminal to each end of the PGND cable by following instructions provided in section Assembling the OT Terminal and the Power Cable of Installation Reference Step 2 Install the PGND cable Connect the M6 OT terminal at one end of the PGND cable to the ground terminal at the RRU3931E bottom and the M8 OT terminal at the other end to the external ground bar See Figure...

Page 37: ...oute depends on actual requirements l The RRU3931E RF jumper can connect the RRU3931E and external antenna system or connect the RRU3931E and GPS antenna system The following section takes installing an RF jumper between the RRU3931E and external antenna system as an example NOTE It is good practice to use an RF jumper when installing the external antenna system for the RRU3931E If the RRU3931E RF...

Page 38: ... of the Smart type N male connector and push the connector upwards A slight crack will be heard when the connector is properly installed See Figure 1 30 Figure 1 30 Installing an RF jumper NOTICE Do not exert force on the non metal part that is the black part as shown in Figure 1 30 RRU3931E Installation Guide 1 RRU3931E Installation Guide Issue Draft A 2016 03 30 Huawei Proprietary and Confidenti...

Page 39: ...o 5 mm away from the end of insulating tape NOTE l Before wrapping waterproof tape stretch the tape evenly until the length of the tape is twice its original length l Do not stretch the PVC insulation tape before wrapping l Wrap each layer of tape around the connector tightly and neatly and ensure that each layer of tape overlaps more than 50 of the preceding layer l Ensure that the side with adhe...

Page 40: ...length l Do not stretch the PVC insulation tape before wrapping l Wrap each layer of tape around the connector tightly and neatly and ensure that each layer of tape overlaps more than 50 of the preceding layer l Ensure that the side with adhesive tape is covered on the wrapped tape l When cutting off the cable tie reserve a surplus length of 3 mm to 5 mm End Follow up Procedure 1 Route the cable b...

Page 41: ...he terminals Figure 1 34 Removing the antenna connector Step 2 Remove the screws from the antenna 1 Use an M4 hex key to loosen the three M4x14 screws at the bottom of the RRU3931E 2 Push the RRU3931E antenna downwards as shown in Figure 1 35 RRU3931E Installation Guide 1 RRU3931E Installation Guide Issue Draft A 2016 03 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 3...

Page 42: ...ghtly the metal part in the red dotted circle in Figure 1 36 of the Smart type N male connector and push the connector upwards A slight crack will be heard when the connector is properly installed See Figure 1 36 RRU3931E Installation Guide 1 RRU3931E Installation Guide Issue Draft A 2016 03 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 38 ...

Page 43: ...not used retain and waterproof the waterproof cap on the port Figure 1 37 Waterproofing a waterproof cap 1 Waterproof cap 2 PVC insulation tape 3 Waterproof tape 1 Verify that waterproof caps are not removed RRU3931E Installation Guide 1 RRU3931E Installation Guide Issue Draft A 2016 03 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 39 ...

Page 44: ...red on the wrapped tape l When cutting off the cable tie reserve a surplus length of 3 mm to 5 mm Step 5 Optional If a normal type N female connector is used for the antenna to be installed perform Step 4 to Step 5 Step 6 Optional If the DIN type female connector is used for the antenna to be installed perform the following steps 1 Connect the DIN male and N female connector to the RF port of the ...

Page 45: ...able ties to bind the cable 1 9 Checking the Hardware Installation This section describes how to check the hardware installation after a RRU3931E is installed Table 1 4 provides the checklist for the RRU3931E hardware installation Table 1 4 RRU3931E hardware installation checklist SN Item 1 The installation position conforms to the engineering drawing and meets the clearance requirements Sufficien...

Page 46: ... signal cable are intact and securely linked and these cables are not damaged or broken 11 Labels are correct legible and complete at both ends of each cable 1 10 Performing a Power On Check This section describes the procedure for performing a power on check on a RRU3931E Context Figure 1 39 shows the RRU3931E power on check procedure Figure 1 39 Power on check RRU3931E Installation Guide 1 RRU39...

Page 47: ...ring a startup a RRU3931E reads and writes the flash memory and therefore the indicators blinking quickly may blink irregularly for 1s to 2s which does not affect services End 1 11 References This section describes reference information and common operations involved during installation 1 11 1 Assembling a Shielded RJ45 Connector and an Ethernet Cable This section describes how to assemble a shiel...

Page 48: ...rds evenly and cut off the aluminum foil and guard space See Figure 1 41 NOTICE l Do not damage the shield layer when removing the jacket l Do not damage the insulation layer of the Ethernet cable when removing the shield layer Figure 1 41 Removing the jacket of an Ethernet cable RRU3931E Installation Guide 1 RRU3931E Installation Guide Issue Draft A 2016 03 30 Huawei Proprietary and Confidential ...

Page 49: ... Pin assignment Pin SN Wire Color 1 White and orange 2 Orange 3 White and green 4 Blue 5 White and blue 6 Green 7 White and brown 8 Brown Step 3 Insert the sequenced twisted pair wires into the RJ45 connector See Figure 1 43 RRU3931E Installation Guide 1 RRU3931E Installation Guide Issue Draft A 2016 03 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 45 ...

Page 50: ...the bottom of the RJ45 connector Step 4 Use a crimping tool to crimp the connector See Figure 1 44 Figure 1 44 Crimping the connector Step 5 Use a cable cutter to evenly cut off the protruding braided layer of the connector along the wire holder See Figure 1 45 Figure 1 45 Cutting off the excess braided layer End RRU3931E Installation Guide 1 RRU3931E Installation Guide Issue Draft A 2016 03 30 Hu...

Page 51: ...n intact and must be aligned properly l The soldering edge of a metal contact strip must surpass the ends of the core wires The ends of the core wires must be in contact with the edge of the RJ45 trough In principle the distance between them must be less than 0 5 mm 0 02 in Procedure Step 1 Hold the crimped connector with the front side facing you and check whether the metal contact strips are of ...

Page 52: ...lean and the dirt cannot be removed replace it with a new RJ45 connector Figure 1 49 shows an unqualified piece Figure 1 49 Dirt on a metal contract strip Step 4 Check whether the metal contact strips and the plastic septa are well aligned and intact If a part is skewed and it cannot be fixed replace it with a new RJ45 connector Figure 1 50 shows an unqualified piece RRU3931E Installation Guide 1 ...

Page 53: ...scribes how to test an assembled Ethernet cable thus ensuring that the connectors and wires at both ends are correctly connected This topic illustrates how to test a straight through cable Context Huawei provides two types of Ethernet cables straight through cables and crossover cables l Straight through cables are connected in a one to one manner They are used to connect network adapters to equip...

Page 54: ...s of core wires in a crossover cable Table 1 7 Connections of core wires in a straight crossover cable RJ45 Connector 1 RJ45 Connector 2 Core Wire Color Twisted or Not 6 2 Orange Twisted 3 1 Orange White 2 6 Green Twisted 1 3 Green White 4 4 Blue Twisted 5 5 Blue White 8 8 Brown Twisted 7 7 Brown White Figure 1 52 shows the pins of an RJ45 connector Figure 1 52 Pins of an RJ45 connector RRU3931E I...

Page 55: ...e switch to the S position and check whether the indicators turn on simultaneously as shown in Figure 1 53 Figure 1 53 Testing the conduction and connections of wires Step 3 Gently shake the connector and repeat Step 2 to check whether the metal contact strips are in good contact with the core wires and Ethernet ports as shown in Figure 1 54 RRU3931E Installation Guide 1 RRU3931E Installation Guid...

Page 56: ...master left section of the tester the indicators turn on in the sequence of 1 8 G At the slave right section of the tester the indicators turn on in the sequence of 3 6 1 4 5 2 7 8 G Otherwise the Ethernet cable is unqualified NOTE If a tester is not available you can use a multimeter to perform a simple test as shown in Figure 1 55 Figure 1 55 Testing the connection of an Ethernet cable RRU3931E ...

Page 57: ...or personal injuries Figure 1 56 shows the scale for making a power cable for the RRU3931E Figure 1 56 RRU3931E power cable making scale 1 RRU3931E power cable making scale Procedure Step 1 Unwind the required length of the power cable for different operations based on the scale See Figure 1 57 Figure 1 57 Determining the power cable length Step 2 Remove the outer jacket of the power cable See Fig...

Page 58: ...s of the three core wires and the adjacent section of the AC power cable See Figure 1 60 Figure 1 60 Insulating a power cable NOTE It is good practice to wrap the three core wires for 16 mm and the adjacent section of the AC power cable section for about 10 mm Step 5 Assemble a tool less female connector pressfit type and the three core wires See Figure 1 61 RRU3931E Installation Guide 1 RRU3931E ...

Page 59: ...ection may cause damage to equipment or unexpected personal injuries 5 Use the M3 Phillips torque screwdriver to torque the screw to 0 5 N m 6 Use the M3 Phillips torque screwdriver to torque the two screws on the other side to 0 5 N m 7 Push the sliding block back in position along the arrow direction 8 Use cable ties to bind the core wires to the connector Step 6 Gently pull each core wire to ch...

Page 60: ... label Small Cellx PWR Label for the BTSx power cable PWR Ground label Small Cell PGNDx Label for the BTS ground cable or equipotential cable Alarm label Small Cellx EXT ALM Label for the BTSx alarm cable EXT ALM Small Cellx DBG Label for the BTSx alarm cable DBG Antenna system label Small Cellx Label for the BTSx TX RX antenna port Optical transmiss ion label Small Cellx FE GE2 Label for the BTSx...

Page 61: ...el This section describes the procedures and precautions for attaching a sign plate label Context l This section applies to Huawei sign plate labels If other engineering labels in accordance with local standards are used on site follow the local standards for attaching sign plate labels l A sign plate label is usually used for a power cable ground label signal cable and antenna This section uses 1...

Page 62: ... port on BTS0 and the other end connected to WAN port on BTS1 At this point both ends of the cable should band two labels Micro BTS0 LAN1 and Micro BTS1 WAN As shown in Figure 1 64 the distance between the two labels is recommended from 10 mm to 20 mm 0 39 in to 0 79 in Figure 1 64 Positions for banding labels NOTE You may change the positions for attaching labels in actual situations For example ...

Page 63: ...llation stage to facilitate subsequent commissioning and maintenance Table 1 9 Table 1 9 SN collection template No Site Number Site Name Base Station SN ODM04A SN Location Informatio n Sample xx RRU3931E xx floor xx building xx mansion NOTE The SN collection template defines the radio network to access and is essential to engineering and subsequent maintenance especially when multiple devices are ...

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