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RRU3269
Installation Guide

9 Installing RRU Cables

Issue Draft B (2018-05-15)

Huawei Proprietary and Confidential

Figure 9-3

Cables secured on a tower

(1) 3-hole clip

(2) 6-hole clip

Special Cabling Requirements

Cabling of power cables



Power cables must be installed in the position specified in engineering design
documents.



If the length of power cables is insufficient, replace the cables rather than adding
connectors or soldering joints to lengthen the cables.



Cables can only be laid out under well-planned instructions. The cabling activities of
fiber optic cables are allowed only when qualified personnel and communication
facilities are available.



Do not circle and twist cables.

Summary of Contents for RRU3269

Page 1: ...RRU3269 Installation Guide Issue Draft B Date 2018 05 15 HUAWEI TECHNOLOGIES CO LTD ...

Page 2: ... 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 subj...

Page 3: ... versions eRAN13 1 and later versions V100R013C10 and later versions Intended Audience This document is intended for Base station installation engineers Organization 1 Changes in RRU3269 Installation Guide This section describes the changes in the RRU3269 Installation Guide 2 Installation Preparations This chapter describes the reference documents tools and instruments that must be ready before th...

Page 4: ...er and the precautions that must be taken 8 Installing the RRU This chapter describes the procedure for installing the RRU The procedure for installing the RRU varies depending on installation options 9 Installing RRU Cables This chapter describes the procedure for installing RRU cables 10 Checking the RRU Hardware Installation After an RRU is installed check the hardware installation 11 Powering ...

Page 5: ...in Times New Roman Boldface Names of files directories folders and users are in boldface For example log in as user root Italic Book titles are in italics Courier New Terminal display is in Courier New Command Conventions Convention Description Boldface The keywords of a command line are in boldface Italic Command arguments are in italics Items keywords or arguments in brackets are optional x y Op...

Page 6: ...Format Description Key Press the key For example press Enter and press Tab Key 1 Key 2 Press the keys concurrently For example pressing Ctrl Alt A means the three keys should be pressed concurrently Key 1 Key 2 Press the keys in turn For example pressing Alt A means the two keys should be pressed in turn Mouse Operation Action Description Click Select and release the primary mouse button without m...

Page 7: ...Requirements of an RRU 21 3 5 1 Clearance for a Single RRU 21 3 5 2 Clearance for Three or More RRUs 25 3 5 3 Installation Spacing Between RRUs 29 4 Unpacking the Equipment 32 5 Installation Process 34 6 Optional Installing the Plastic Shells of the RRU 35 7 Hoisting an RRU and Related Cables onto a Tower 38 7 1 Hoisting an RRU onto a Tower 38 7 2 Hoisting Optical Fibers onto a Tower 43 7 3 Hoisti...

Page 8: ...99 9 5 Installing an RRU PGND Cable 100 9 6 Installing an RRU RF Jumper 102 9 7 Installing an RRU AISG Multi Wire Cable and AISG Extension Cable 106 9 8 Installing an RRU Alarm Cable 109 9 9 Opening the Cover Plate of an RRU Cabling Cavity 111 9 10 Installing a CPRI Optical Fiber 113 9 11 Installing an RRU power cable 116 9 12 Closing the Cover Plate of an RRU Cabling Cavity 118 10 Checking the RR...

Page 9: ... Installation Guide Draft B 2018 05 15 This is a draft Compared with Draft A 2018 04 14 this issue does not include any new information Compared with Draft A 2018 04 14 this issue includes the following change Topic Change Description 12 1 Adding a Female Connector to the RRU Power Cable on the RRU Side Optimized the descriptions in this section Compared with Draft A 2018 04 14 no information is d...

Page 10: ...pared before the remote radio unit RRU installation 2 3 Skills and Requirements for Onsite Personnel Onsite personnel must be qualified and trained Before performing any operation onsite personnel must be familiar with correct operation methods and safety precautions 2 1 Reference Documents Before the installation you must be familiar with reference documents The following reference documents are ...

Page 11: ...stripper Power cable cutter Diagonal pliers Torque screwdriver 5 mm 0 2 in M3 to M6 M3 to M6 Power cable crimping tool Hydraulic pliers Adjustable wrench open mouth 32 mm 1 26 in Torque wrench Open mouth 16 mm 0 63 in 17 mm 0 67 in 19 mm 0 75 in 21 mm 0 83 in 22 mm 0 87 in and 32 mm 1 26 in Combination wrench Open mouth 16 mm 0 63 in 17 mm 0 67 in 19 mm 0 75 in 21 mm 0 83 in 22 mm 0 87 in and 32 m...

Page 12: ... Onsite Personnel Onsite personnel must be qualified and trained Before performing any operation onsite personnel must be familiar with correct operation methods and safety precautions Before the installation pay attention to the following items The customer s technical engineers must be trained by Huawei and be familiar with the proper installation and operation methods The number of onsite perso...

Page 13: ...s An RRU has a bottom panel cabling cavity panel and indicator panel 3 3 RRU Indicators This section describes six indicators on an RRU They indicate the running status of the RRU 3 4 Installation Scenarios An RRU can be installed on a pole U steel angle steel wall or IFS06 Installation scenarios must meet heat dissipation and waterproofing requirements of the RRU 3 5 Installation Clearance Requir...

Page 14: ...and Confidential Copyright Huawei Technologies Co Ltd 6 Figure 3 1 RRU exterior Figure 3 2 shows RRU dimensions Figure 3 2 RRU dimensions 3 2 RRU Ports This section describes ports on the RRU panels An RRU has a bottom panel cabling cavity panel and indicator panel Figure 3 3 shows the ports on the RRU panels ...

Page 15: ...ks 1 Bottom ports ANT_TXA TX port A 4 3 10 straight connector supporting RET signal transmission ANT_TXB TX port B 4 3 10 straight connector EXT_ALM Alarm monitoring port used for monitoring one RS485 signal and two dry contact signals RET Communication port for the RET antenna supporting RET signal transmission 2 Ports in the cabling cavity RTN Power supply socket For details about RRU power cabl...

Page 16: ... the running status of the RRU For detailed positions of RRU indicators see 3 2 RRU Ports Table 3 2 describes RRU indicators Table 3 2 RRU Indicators Indicator Color Status Meaning RUN Green Steady on The power input is available but the board is faulty Steady off No power input is available or the board is faulty Blinking on for 1s and off for 1s The board is running properly Blinking on for 0 12...

Page 17: ...en The CPRI link is running properly Steady red An optical module fails to receive or transmit signals possibly because the optical module is faulty or the optical fiber is broken Blinking red on for 1s and off for 1s The CPRI link is out of lock because of faults on the mutual lock of dual mode clock sources or mismatched data rates on CPRI ports Steady off The optical module cannot be detected o...

Page 18: ...related security features For details about specific requirements and precautions see Safety Information Application scenarios To ensure proper heat dissipation of the RRU the following requirements must be met The RRU cannot be installed in an enclosed cabinet without a cooling system The RRU cannot be installed in an enclosed camouflage box The RRU cannot be installed in an enclosed equipment ro...

Page 19: ...the RRU the vertical deviation angle of an RRU must be less than or equal to 10 degrees as shown Figure 3 5 On a tower an RRU can be installed on a pole angle steel or U steel The side mounted installation mode one side instead of the rear of an RRU is mounted on the support is recommended for RRUs on the main pole secured on a tower This installation mode allows the RRU stacked installation When ...

Page 20: ...e operator is the front of the RRU and the other side is the back of the RRU Standard installation RRU mounting kits are installed on the back of an RRU Reverse installation RRU mounting kits are installed on the front of an RRU Side mounted installation RRU mounting kits are installed on the side face not the side face of the maintenance cavity of an RRU Stacked installation Two or more RRUs are ...

Page 21: ...e recommended thickness of the pole wall is 3 5 mm 0 14 in or above When RRUs are installed on a pole the side mounted installation is recommended A maximum of three RRUs can be installed on a pole with the diameter ranging from 60 mm 2 36 in to 76 mm 2 99 in Only a pole whose diameter ranges from 76 mm 2 99 in to 114 mm 4 49 in supports more than three RRUs Figure 3 7 shows a single RRU installed...

Page 22: ...on Issue Draft B 2018 05 15 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 14 Figure 3 8 Two RRUs installed on a pole Figure 3 9 Figure 3 10 and Figure 3 11 show multiple RRUs installed on a pole Figure 3 9 Three RRUs installed on a pole ...

Page 23: ...ation Issue Draft B 2018 05 15 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 15 Figure 3 10 Four RRUs installed on a pole Figure 3 11 Six RRUs installed on a pole Installing an RRU on U Steel Figure 3 12 shows U steel specifications ...

Page 24: ...dential Copyright Huawei Technologies Co Ltd 16 Figure 3 12 U steel specifications U steel supports only the standard or reverse installation of a single RRU Figure 3 13 shows an RRU installed on U steel Figure 3 13 RRU installed on U steel Installing an RRU on Angle Steel Figure 3 14 shows angle steel specifications ...

Page 25: ...e RRU Figure 3 15 shows an RRU installed on angle steel Figure 3 15 RRU installed on angle steel Installing an RRU on a Wall The wall for installing RRUs must meet the following requirements For each RRU the wall must be able to bear a weight four times heavier than the RRU s weight and the bolts pulling force of 1 25 kN 281 25 lbf vertical to the wall Expansion bolts must be tightened to 30 N m 2...

Page 26: ...oprietary and Confidential Copyright Huawei Technologies Co Ltd 18 The standard installation is recommended for RRUs installed on a wall Figure 3 16 Correct installation of RRUs installed on a wall in side mounted mode Figure 3 17 shows an RRU installed on a wall Figure 3 17 RRU installed on a wall ...

Page 27: ... least 5 C 41 F lower than the highest operating temperature of the RRUs The IFS06 supports a maximum of six RRUs when the ambient temperature is higher than or equal to the lowest operating temperature of the RRUs and at least 10 C 50 F lower than the highest operating temperature of the RRUs For details about the operating temperature of the RRUs see section Technical Specifications of RRUs in B...

Page 28: ...mation About the Installation Issue Draft B 2018 05 15 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 20 Figure 3 19 Three RRUs installed on an IFS06 1 Height restricted scenario 2 Height unrestricted scenario ...

Page 29: ... an IFS06 1 Height restricted scenario 2 Height unrestricted scenario 3 5 Installation Clearance Requirements of an RRU This section describes the requirements for the installation clearance of a single RRU and multiple RRUs and the requirements for the installation spacing between RRUs 3 5 1 Clearance for a Single RRU This section describes the recommended and minimum clearances for a single RRU ...

Page 30: ...recommended clearances ensure normal running and provide appropriate space for operation and maintenance O M If the installation space is sufficient leave the recommended clearances after installing the equipment The minimum clearance ensures normal running and heat dissipation but O M activities such as checking indicator status and opening the cabling cavity cannot be properly conducted If the i...

Page 31: ... 2018 05 15 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 23 Figure 3 21 Clearance for a single RRU in side mounted mode Clearance for a Single RRU in Standard or Reverse Mode Figure 3 22 shows the clearance for a single RRU in standard or reverse mode ...

Page 32: ...etary and Confidential Copyright Huawei Technologies Co Ltd 24 Figure 3 22 Clearance for a single RRU in standard or reverse mode Clearance for a Single Tower Mounted RRU Figure 3 23 and Figure 3 24 show the minimum clearances for a single RRU in side mounted mode and standard or reverse mode on a tower ...

Page 33: ...opyright Huawei Technologies Co Ltd 25 Figure 3 23 Minimum clearance for a single RRU in side mounted mode on a tower Figure 3 24 Minimum clearance for a single RRU in standard or reverse mode on a tower 3 5 2 Clearance for Three or More RRUs This section describes the recommended and minimum clearances for three or more RRUs ...

Page 34: ...ce is sufficient leave the recommended clearances after installing the equipment The minimum clearance ensures normal running and heat dissipation but O M activities such as checking indicator status and opening the cabling cavity cannot be properly conducted If the installation space is restricted leave the minimum clearance after installing the equipment Recommended Clearances for Multiple RRUs ...

Page 35: ...ntial Copyright Huawei Technologies Co Ltd 27 Figure 3 26 Minimum clearances for multiple RRUs installed in stacked mode Recommended Clearances for Multiple RRUs Installed in Standard or Reverse Mode on a Wall Figure 3 27 shows the recommended clearances for multiple RRUs installed in standard or reverse mode on a wall ...

Page 36: ...Figure 3 27 Recommended clearances for multiple RRUs installed in standard or reverse mode on a wall Minimum Clearances for Multiple RRUs Installed in Standard or Reverse Mode on a Wall Figure 3 28 shows the minimum clearances for multiple RRUs installed in standard mode on a wall Figure 3 28 Minimum clearances for multiple RRUs installed in standard mode on a wall ...

Page 37: ...hows the recommended clearances for multiple RRUs installed in side mounted mode on a wall Figure 3 29 Recommended clearances for multiple RRUs installed in side mounted mode on a wall 3 5 3 Installation Spacing Between RRUs This section describes the horizontal and vertical spacing between RRUs Recommended Horizontal Spacing Between RRUs Figure 3 30 shows the recommended horizontal spacing betwee...

Page 38: ...wei Technologies Co Ltd 30 Minimum Horizontal Spacing Between RRUs Figure 3 31 shows the minimum horizontal spacing between RRUs Figure 3 31 Minimum horizontal spacing between RRUs Recommended Vertical Spacing Between RRUs Figure 3 32 shows the recommended vertical spacing between RRUs Figure 3 32 Recommended vertical spacing between RRUs ...

Page 39: ...allation Issue Draft B 2018 05 15 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 31 Minimum Vertical Spacing Between RRUs Figure 3 33 shows the minimum vertical spacing between RRUs Figure 3 33 Minimum vertical spacing between RRUs ...

Page 40: ...id touching the equipment components or parts with bare hands sweat soaked gloves or dirty gloves Transportation of the base stations must comply with requirements of ETSI 300 019 1 2 class 2 3 For the goods damage caused by non standard and violent transportation or non human factors such as natural disasters the transportation entity should take the responsibility After a cabinet or a BBU is unp...

Page 41: ... tally with those on the packing list Sign the Packing List with the customer Either shipment shortage wrong shipment or damaged articles Report to the local Huawei office To protect the equipment and prevent damage to the equipment you are advised to keep the unpacked equipment and packing materials indoors take photos of the stocking environment packing case or carton packing materials and any r...

Page 42: ...ry and Confidential Copyright Huawei Technologies Co Ltd 34 5 Installation Process The installation process involves installing an RRU and RRU cables checking the RRU hardware installation and powering on an RRU Figure 5 1 shows the installation process Figure 5 1 Process of installing an RRU ...

Page 43: ...alling the Plastic Shells of the RRU This section describes the procedure for installing the plastic shells of the RRU Context An RRU is equipped with a plastic shell only when necessary Procedure Step 1 Use an M6 Phillips screwdriver to loosen the two screws on the metal sheet of the RRU and remove the metal sheet as shown in Figure 6 1 Figure 6 1 Removing the metal sheet 1 Screw 2 Metal sheet ...

Page 44: ... at the bottom of the RRU and use an M4 torque wrench to tighten the screws on the buckles to 1 4 N m 12 39 lbf in as shown in Figure 6 2 Figure 6 2 Installing buckles at the bottom 1 Buckle 2 Screw Step 3 Use four hex screws to secure the plastic shells onto the RRU and use an M6 hex key wrench to tighten the screws to 2 8 N m 24 78 lbf in as shown in Figure 6 3 Figure 6 3 Installing the plastic ...

Page 45: ...RRU3269 Installation Guide 6 Optional Installing the Plastic Shells of the RRU Issue Draft B 2018 05 15 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 37 End ...

Page 46: ... onto a Tower This section describes the procedure for hoisting optical fibers onto a tower and the precautions that must be taken 7 3 Hoisting Power Cables onto a Tower This section describes the procedure for hoisting power cables onto a tower and the precautions that must be taken 7 1 Hoisting an RRU onto a Tower This section describes the procedures and precautions for hoisting an RRU and its ...

Page 47: ... 2 Installation engineer C binds the mounting kits using the lifting sling and traction sling on the ground as shown in Figure 7 1 Then installation engineer B pulls the lifting sling downwards and installation engineer C pulls the traction sling outwards to protect the mounting kits from colliding with the tower Figure 7 1 Binding mounting kits for the RRU 1 Lifting sling 2 Traction sling Step 3 ...

Page 48: ...Related Cables onto a Tower Issue Draft B 2018 05 15 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 40 Figure 7 2 Binding the RRU 1 Handle 2 Lifting sling 3 Traction eye 4 Traction sling Figure 7 3 Incorrect binding method 1 ...

Page 49: ...and Confidential Copyright Huawei Technologies Co Ltd 41 Figure 7 4 Incorrect binding method 2 Step 6 Hoist the RRU onto the tower as shown in Figure 7 5 Installation engineer B pulls the lifting sling downwards and installation engineer C pulls the traction sling outwards to protect the RRU from colliding with the tower ...

Page 50: ...iding with the tower Hoist the RRU onto the tower before it is installed on a pole angle steel or U steel Do not hoist anything using the traction eye Step 7 Installation engineer A catches the RRU hoisted onto the tower Step 8 Installation engineer A installs the RRU onto the main bracket and uses an inner hexagon torque screwdriver to tighten the captive screw into the hole of the attachment pla...

Page 51: ...r cables are met For details see 9 1 Cabling Requirements Procedure Step 1 Hoist the optical fibers onto the tower as shown in Figure 7 6 Figure 7 6 Hoisting optical fibers onto the tower 1 Lifting sling 2 Fixed pulley 3 Traction sling Before hoisting optical fibers onto the tower connect the optical fibers to the RRU or BBU based on the labels on both ends of the cables and determine the hoisting...

Page 52: ...ibers on the fiber spools and installation engineer D lead the lifting sling through the stretch sling of the optical fibers and use the other sling as a traction sling to secure the cables 4 m 13 12 ft away from the lifting sling as shown in Figure 7 7 Figure 7 7 Binding optical fibers 1 Lifting sling 2 Stretch sling 3 Traction sling Do not remove the stretch sling and protection pipe or bind opt...

Page 53: ...ibers from colliding with the tower Step 2 Secure the optical fibers to the tower vertically using cable clips Step 3 Remove the lifting sling traction sling and protection pipe The procedure for hoisting the optical fibers onto the tower is for your reference only End 7 3 Hoisting Power Cables onto a Tower This section describes the procedure for hoisting power cables onto a tower and the precaut...

Page 54: ...pulley 1 After climbing up to the tower installation engineer A secures the fixed pulley to the tower platform support and leads the lifting sling through the fixed pulley 2 Installation engineer B secures three cable ties to the power cable connector and then secures the power cable to the lifting sling as shown in Figure 7 10 The connector on the power cable in the figure is only an example The ...

Page 55: ...hnologies Co Ltd 47 Figure 7 10 Binding cable ties 3 Installation engineer B wraps the power cable connector with a layer of PVC insulation tape as shown in Figure 7 11 Wrap the PVC insulation tape from 30 mm 1 18 in away from one end of the connector until it reaches the other end of the connector The total length of the wrapped connector is 100 mm 3 94 in ...

Page 56: ...4 Installation engineer C pulls the lifting sling downwards and installation engineer B pulls the other end of the lifting sling outwards to protect the power cables from colliding with the tower Step 2 Secure the power cables to the tower vertically using cable clips Step 3 Remove the cable ties PVC insulation tape and lifting sling The procedure for hoisting the power cables onto the tower is fo...

Page 57: ... An RRU can be installed on U steel secured on the ground or a tower Each piece of U steel allows only one RRU to be installed in standard or reverse mode 8 4 Installing an RRU on Angle Steel This section describes the process and precautions for installing an RRU on angle steel An RRU can be installed on angle steel secured on the ground or a tower Each piece of angle steel allows only one RRU to...

Page 58: ...3 Attachment plate Figure 8 2 shows the bracket assembly for an RRU The RRU described in this document must use the required RRU mounting kits in new deployment scenarios Figure 8 2 18 Lblade RRU mounting kit 1 Plastic cap 2 Standard M10 nut 3 Spring washer 4 Thick flat washer 5 Square neck bolt 6 Hoist clamp on the main bracket 7 Main bracket 8 Inner hexagon screw 9 Pole installation bracket 10 A...

Page 59: ...ed onto the tower For details see 7 1 Hoisting an RRU onto a Tower The hoist clamp on the main bracket is secured properly Do not stand an RRU upright because the RF ports cannot support the weight of the RRU Place a foam pad or cardboard under an RRU to protect the RRU housing from damage during the installation Procedure Step 1 Determine a position for installing the mounting kits If the RRU is ...

Page 60: ...stallation Clearance Requirements of an RRU needs to be provided Step 2 Install the RRU mounting kits as shown in Figure 8 4 Figure 8 4 Installing the RRU mounting kits Ensure that the arrows on the mounting kits are pointing up 1 Adjust the position of the nut and remove the square neck bolt at the open end from the slot on the auxiliary bracket 2 Slide the mounting kits onto the pole horizontall...

Page 61: ...ghten the nuts on the two square neck bolts simultaneously After the main and auxiliary brackets are secured properly measure the spacing between the brackets on both sides and ensure that the spacing is the same on the two sides Figure 8 5 Securing the RRU mounting kits 1 Plastic cap Step 4 Install the RRU onto the main bracket as shown in Figure 8 6 ...

Page 62: ...nner hexagon torque screwdriver to tighten the captive screw into the holes on the top of the attachment plate and main bracket to 5 N m 44 25 lbf in so that the attachment plate and main bracket are firmly secured as shown in Figure 8 7 Figure 8 7 Securing the captive screw into the connection hole End 8 2 2 Installing Two RRUs This section describes the procedure and precautions for installing t...

Page 63: ...U Place a foam pad or cardboard under an RRU to protect the RRU housing from damage during the installation Procedure Step 1 Install the first RRU onto the main bracket as shown in Figure 8 8 For details see 8 2 1 Installing a Single RRU Figure 8 8 Installing the first RRU onto the main bracket Step 2 Use an M6 inner hexagon screwdriver to loosen the four hex socket screws from the main bracket an...

Page 64: ...ure 8 9 Removing the RRU main bracket 1 Main bracket 2 Pole mounting kit Step 3 Install the removed main bracket on one side of the first main bracket as shown in Figure 8 10 The second main bracket must be installed with the open ends of U shaped slots on both sides facing downwards Figure 8 10 Installing the second main bracket 1 Removed main bracket ...

Page 65: ...stalling a blade RRU can connect to the main mounting bracket for installing a common RRU in the scenarios of adding RRUs as shown in Figure 8 11 Figure 8 11 Connecting to the main mounting bracket for installing a common RRU 1 Main mounting bracket for a blade RRU 2 Main mounting bracket for a common RRU Step 4 Install the second RRU onto the main bracket as shown in Figure 8 12 ...

Page 66: ...igure 8 12 Installing the second RRU onto the main bracket After installing each RRU on its main bracket use an inner hexagon torque screwdriver to tighten the captive screw into the holes on the top of the attachment plate and main bracket to 5 N m 44 25 lbf in so that the attachment plate and main bracket are firmly secured as shown in Figure 8 13 ...

Page 67: ... 8 13 Securing the captive screw into the connection hole Step 5 Install the sheet metal tab for fixing the neighboring RRUs as shown in Figure 8 14 Figure 8 14 Installing the sheet metal tab 1 Screw 2 Sheet metal tab 1 Use an M6 Phillips screwdriver to loosen the screw on the sheet metal tab farther from the handle of the second RRU and remove the screw ...

Page 68: ... or More RRUs This section describes the procedure and precautions for installing three or more RRUs on a pole Prerequisites The hoist clamp on the main bracket is secured properly Do not stand an RRU upright because the RF ports cannot support the weight of the RRU Place a foam pad or cardboard under an RRU to protect the RRU housing from damage during the installation Context A pole supports thr...

Page 69: ... bracket and pole mounting kit on the second set of mounting kits and remove the main bracket as shown in Figure 8 16 Figure 8 16 Removing the RRU main bracket 1 Main bracket 2 Pole mounting kit Step 3 Install the third main bracket and install the third RRU onto the third main bracket Then use an inner hexagon torque screwdriver to tighten the captive screw into the holes on the top of the attach...

Page 70: ...The third main bracket must be installed with the open ends of U shaped slots on both sides facing downwards Figure 8 17 Installing the third RRU onto the third main bracket The main mounting bracket for installing a blade RRU can connect to the main mounting bracket for installing a common RRU in the scenarios of adding RRUs as shown in Figure 8 11 ...

Page 71: ...tall the sheet metal tab for fixing the neighboring RRUs as shown in Figure 8 19 Figure 8 19 Installing the sheet metal tab 1 Screw 2 Sheet metal tab 1 Use an M6 Phillips screwdriver to loosen the screw on the sheet metal tab farther from the handle of the first RRU and remove the screw 2 Use an M6 Phillips screwdriver to loosen the screw on the sheet metal tab closer to the handle of the first RR...

Page 72: ...nstall the second set of RRU mounting kits at least 80 mm 3 15 in above or below the first set of RRU mounting kits as shown in Figure 8 20 Figure 8 20 Installing the second set of RRU mounting kits Step 6 Install the fourth RRU onto the fourth main bracket use an inner hexagon torque screwdriver to tighten the captive screw into the holes on the top of the attachment plate and main bracket to 5 N...

Page 73: ...d or a tower Each piece of U steel allows only one RRU to be installed in standard or reverse mode Prerequisites Before you install an RRU on U steel secured on a tower the RRU and its mounting brackets are hoisted onto the tower For details see 7 1 Hoisting an RRU onto a Tower The hoist clamp on the main bracket is secured properly Do not stand an RRU upright because the RF ports cannot support t...

Page 74: ...the a and b modes are supported Figure 8 22 Top view of an RRU 1 U steel Procedure Step 1 Determine a position for installing the mounting kits If the RRU is installed on a tower determine a position for installing the mounting kits according to the instructions in 3 5 1 Clearance for a Single RRU If the RRU is installed on the ground determine a position for installing the mounting kits according...

Page 75: ...mm 59 06 in high above the ground If the space is insufficient only the 3 5 Installation Clearance Requirements of an RRU needs to be provided Step 2 Install the RRU mounting kits as shown in Figure 8 24 Figure 8 24 Installing the RRU mounting kits Ensure that the arrows on the pole mounting kits are pointing up 1 Adjust the position of the nut and remove the square neck bolt at the open end from ...

Page 76: ...he nuts on the two square neck bolts simultaneously After the main and auxiliary brackets are secured properly measure the spacing between the mounting kits on both sides and ensure that the spacing is the same on the two sides Figure 8 25 Securing the RRU mounting kits 1 Plastic cap Step 4 Use an inner hexagon torque screwdriver to remove the attachment plate from one side of the RRU reinstall th...

Page 77: ...o the rear of the RRU Step 5 Install the RRU onto the main bracket as shown in Figure 8 27 Figure 8 27 Installing the RRU onto the main brackets Step 6 Use an inner hexagon torque screwdriver to tighten the captive screw into the holes on the top of the attachment plate and main bracket to 5 N m 44 25 lbf in so that the attachment plate and main bracket are firmly secured as shown in Figure 8 28 ...

Page 78: ... or a tower Each piece of angle steel allows only one RRU to be installed in standard or reverse mode Prerequisites Before you install an RRU on U steel secured on a tower the RRU and its mounting brackets are hoisted onto the tower For details see 7 1 Hoisting an RRU onto a Tower The hoist clamp on the main bracket is secured properly Do not stand an RRU upright because the RF ports cannot suppor...

Page 79: ...sition for installing the mounting kits If the RRU is installed on angle steel secured on a tower determine a position for installing the mounting brackets according to the instructions in 3 5 1 Clearance for a Single RRU If the RRU is installed on angle steel secured on the ground determine a position for installing the mounting brackets according to Figure 8 30 Figure 8 30 Distance between the m...

Page 80: ...U mounting kits Ensure that the arrows on the pole mounting kits are pointing up 1 Adjust the position of the nut and remove the square neck bolt at the open end from the slot on the auxiliary bracket 2 Slide the mounting brackets onto the angle steel horizontally and insert the square neck bolt into the slot Step 3 Use a 16 mm 0 63 in M10 torque wrench to tighten the nuts to 40 N m so that the mo...

Page 81: ...32 Securing the RRU mounting kits 1 Plastic cap Step 4 Use an inner hexagon torque screwdriver to remove the attachment plate from one side of the RRU reinstall the attachment plate onto the rear of the RRU and tighten the four stainless screws to 5 N m 44 25 lbf in as shown in Figure 8 33 Figure 8 33 Installing the attachment plate onto the rear of the RRU ...

Page 82: ...as shown in Figure 8 34 Figure 8 34 Installing the RRU onto the main brackets Step 6 Use an inner hexagon torque screwdriver to tighten the captive screw into the holes on the top of the attachment plate and main bracket to 5 N m 44 25 lbf in so that the attachment plate and main bracket are firmly secured as shown in Figure 8 35 Figure 8 35 Securing the captive screw into the connection hole ...

Page 83: ... cannot support the weight of the RRU Place a foam pad or cardboard under an RRU to protect the RRU housing from damage during the installation Context The wall on which RRUs are installed must meet the following requirements For each RRU the wall must be able to bear a weight four times heavier than the RRU s weight and the bolts pulling force of 1 25 kN 281 25 lbf vertical to the wall Expansion ...

Page 84: ...screwdriver to remove the four inner hexagon screws on the pole installation bracket and remove the main bracket from the pole installation bracket 2 Use an M10 torque wrench to loosen the nuts on the two square neck bolts and remove the plastic screw cap nuts spring washers flat washers square neck bolts and pole installation bracket from the auxiliary bracket Step 2 Place the pole installation b...

Page 85: ...ded that the pole installation bracket be installed at a position 1200 mm 47 24 in to 1600 mm 59 06 in high above the ground If the space is insufficient only the 3 5 Installation Clearance Requirements of an RRU needs to be provided Step 3 Drill holes at the anchor points and then insert expansion anchor bolts as shown in Figure 8 38 Figure 8 38 Drilling holes and inserting expansion anchor bolts...

Page 86: ...t the dust before drilling holes 2 Tighten the expansion anchor bolts slightly and place one vertically into each hole 3 Use a rubber mallet to pound the expansion anchor bolt until it goes into the hole completely 4 Tighten and then loosen the expansion bolt and remove the M10 bolt spring washer and flat washer in sequence After dismantling an expansion anchor bolt ensure that the top of the expa...

Page 87: ...n the expansion anchor bolts Ensure that the arrows on the pole installation bracket are pointing up Step 5 Install the main bracket onto the pole installation bracket using four M6x16 inner hexagon screws and use an inner hexagon torque screwdriver to tighten the inner hexagon screws to 5 N m 44 25 lbf in so that the main bracket and pole installation bracket are firmly secured as shown in Figure...

Page 88: ... the main bracket 1 Main bracket 2 Pole installation bracket Step 6 Use an inner hexagon torque screwdriver to remove the attachment plate from one side of the RRU reinstall the attachment plate onto the rear of the RRU and tighten the four stainless screws to 5 N m 44 25 lbf in as shown in Figure 8 41 Figure 8 41 Installing the attachment plate onto the rear of the RRU ...

Page 89: ...ll the RRU onto the main bracket as shown in Figure 8 42 Figure 8 42 Installing the RRU onto the main bracket Step 8 Use an inner hexagon torque screwdriver to tighten the captive screw into the holes on the top of the attachment plate and main bracket to 5 N m 44 25 lbf in so that the attachment plate and main bracket are firmly secured as shown in Figure 8 43 ...

Page 90: ... RRU upright because the RF ports cannot support the weight of the RRU Place a foam pad or cardboard under an RRU to protect the RRU housing from damage during the installation Context The upper and lower adjustable beams on an IFS06 can be moved up and down to fit for heights of RRUs RRUs can be installed on an IFS06 when the ambient temperature is higher than or equal to the lowest operating tem...

Page 91: ...he M10x50 bolts delivered with the IFS06 Rubber washers are easily compressed or broken whereas do not need to be replaced Procedure Step 1 Disassemble the RRU mounting kits as shown in Figure 8 44 Figure 8 44 Disassembling the RRU mounting kits 1 Main bracket 2 Square neck bolt 3 Pole installation bracket 4 Auxiliary bracket 5 Flat washer 6 Spring washer 7 Nut 8 Plastic screw cap 1 Use an M6 inne...

Page 92: ...inting up Install the RRU mounting kits as shown in Figure 8 45 Figure 8 45 Installing the pole mounting kit in height unrestricted scenario 1 Spring washer 2 Rubber washer Step 3 Attach the main bracket to the pole mounting kit and use an inner hexagon screwdriver to tighten four M6x16 screws to 5 N m 44 25 lbf in so that the main bracket and pole mounting kit are firmly secured as shown in Figur...

Page 93: ...re 8 46 Installing the RRU main brackets 1 Main bracket 2 Pole mounting kit Step 4 Attach the RRU to the main bracket and then use an inner hexagon screwdriver to tighten the captive screw into the holes of the attachment plate and main bracket to 5 N m 44 25 lbf in so that the attachment plate and main bracket are firmly secured as shown in Figure 8 47 ...

Page 94: ...Issue Draft B 2018 05 15 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 86 Figure 8 47 Installing and securing the RRU on the main bracket Step 5 Install the RRUs on the lower level from left to right as shown in Figure 8 48 ...

Page 95: ...o Ltd 87 Figure 8 48 Installing RRUs on the lower level Step 6 Optional When the ambient temperature is greater than or equal to the lowest operating temperature of the RRU and at least 10 C 50 F lower than the highest operating temperature of the RRU repeat the preceding steps to install the RRUs on the higher level as shown in Figure 8 49 ...

Page 96: ...RRU3269 Installation Guide 8 Installing the RRU Issue Draft B 2018 05 15 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 88 Figure 8 49 Installing RRUs on the higher level End ...

Page 97: ...tion describes RRU cable connections 9 5 Installing an RRU PGND Cable This section describes the procedure for installing an RRU PGND cable 9 6 Installing an RRU RF Jumper This section describes the procedure for installing an RRU RF jumper 9 7 Installing an RRU AISG Multi Wire Cable and AISG Extension Cable This section describes the procedures for installing an RRU AISG multi wire cable and AISG...

Page 98: ...be at least three times its diameter The bending radius of a fiber optic cable is at least 20 times of its diameter and the bending radius of a breakout cable is at least 30 mm 1 18 in The bending radius of an E1 T1 cable must be at least three times its diameter The bending radius of a signal cable must be at least five times its diameter Cable binding requirements Cables of the same type must be...

Page 99: ...h ends of the tubes and use sheet metal tabs to secure the tubes to the cable holes in the base When routing cables through tubes along a metal cable trough below the cabinet do not put the tubes into the base of the cabinet but cover the cable trough and connect the tubes to the cable holes in the base When routing RRU cables ensure that the highest positions of the routes of all RRU cables excep...

Page 100: ...chnologies Co Ltd 92 Figure 9 1 Exterior of the clips 1 Cable hole for feeders 2 Cable hole for fiber optic cables 3 Cable hole for power cables The following figure shows the cables secured on a cable tray Figure 9 2 Cables secured on a cable tray 1 3 hole clip 2 6 hole clip The following figure shows the cables secured on a tower ...

Page 101: ...ower cables Power cables must be installed in the position specified in engineering design documents If the length of power cables is insufficient replace the cables rather than adding connectors or soldering joints to lengthen the cables Cables can only be laid out under well planned instructions The cabling activities of fiber optic cables are allowed only when qualified personnel and communicat...

Page 102: ... are connected PGND cables and signal cables must be installed separately A certain distance must be reserved between them to prevent interference from each other Switches or fuses must not be installed on the PGND cables Other devices must not be used for electrical connections of the PGND cables All the metal parts in the housing of the equipment must be reliably connected to the ground terminal...

Page 103: ...s must be coiled around special devices such as a fiber coiler An unarmored fiber optic cable must be bound using binding straps If a fiber optic patch cord needs to be secured in a cabinet or a piece of equipment use binding straps to bind it and then use cable ties to secure the binding straps to the cabinet or equipment Ensure that the fiber optic cables can flexibly move in the cable ties Do n...

Page 104: ...bles routed in the cabinet 2 Figure 9 8 FE GE fiber optic cables routed in the cabinet After routing a fiber optic cable onto the platform on a tower route it along the shortest path to the rails surrounding the platform and route it along the inside of the rails After routing a fiber optic cable close to the equipment on a tower use clips to secure the fiber optic cable onto a pole or the rails s...

Page 105: ...r the equipment on the tower before securing the cables on the tower 9 2 RRU Cable Connections This section describes RRU cable connections The RRU does not support power cable cascading Figure 9 9 shows the cable connections for a single RRU Figure 9 9 Cable connections for a single RRU 1 RRU PGND cable 2 RRU RF jumper 3 RRU AISG multi wire cable 4 RRU AISG extension cable 5 RRU power cable 6 CPR...

Page 106: ...ial Copyright Huawei Technologies Co Ltd 98 Figure 9 10 Cable connections for multiple RRUs 1 RRU PGND cable 2 RRU RF jumper 3 RRU power cable 4 CPRI optical fiber 9 3 Installing RRU Cables This chapter describes the procedure for installing RRU cables Figure 9 11 shows the procedure for installing RRU cables ...

Page 107: ...ion describes RRU cable connections Table 9 1 lists RRU cables Table 9 1 RRU cables Cable One End The Other End Connector Installation Position Connector Installation Position RRU PGND Cable OT terminal M6 16 mm2 or 0 025 in 2 Ground terminal on the RRU OT terminal M8 16 mm2 or 0 025 in 2 Ground terminal on the ground bar RRU Power Cable Female connector NEG and RTN ports Depending on the power su...

Page 108: ...n the lower level RRU or CPRI port on a board in the BBU RRU RF Jumper 4 3 10 straight male connector RF ports on the RRU 4 3 10 straight male connector or DIN male connector NOTICE Select cables based on the type of the connector at the other end of the cable on live networks Antenna system RRU AISG Multi Wire Cable DB9 waterproof male connector RET port on the RRU Standard AISG female connector ...

Page 109: ... or personal injury may occur Procedure Step 1 According to the actual cable route cut the PGND cable into a proper length to prepare an RRU PGND cable Then add an OT terminal at each end of the cable according to the instructions in Assembling the OT Terminal and the Power Cable Step 2 Install the RRU PGND cable Connect the M6 OT terminal at one end of the PGND cable to the ground terminal at the...

Page 110: ...abel End 9 6 Installing an RRU RF Jumper This section describes the procedure for installing an RRU RF jumper Context For details about connections between RRU ports and antenna ports see the RF cable connection section for the corresponding RRU in RRU Hardware Description Procedure Step 1 Connect the 4 3 10 straight male connector on the RRU RF jumper to the antenna port and use a torque wrench t...

Page 111: ...y cables are connected to RRUs installed in tunnels high voltage resistance DC blocks must be installed between RRU RF jumpers and the leaky cables to protect the RRUs against damage Step 2 Connect the other end of the RRU RF jumper to the external antenna system Before installation check whether the connector at the other end is a 4 3 10 straight male connector or DIN male connector Step 3 Waterp...

Page 112: ...e layers of waterproof tape on the connector first from bottom up then from top down and finally from bottom up Start wrapping the connector at a position 50 mm 1 97 in away below the bottom of the connector to the top of the connector first from bottom up then from top down and finally from bottom up Cut off the redundant tape after three layers are wrapped Wrap each layer of tape around the conn...

Page 113: ...he connector first from bottom up then from top down and finally from bottom up Wrap each connector with three layers of waterproof tape from bottom up then from top down and finally from bottom up Do not cut the tape until all the three layers of the tape are already wrapped Cut off the redundant tape after three layers are wrapped Wrap each layer of tape around the connector tightly 3 Wrap three...

Page 114: ...is not long enough to connect the RRU and the RCU In this case an AISG extension cable is used to extend the AISG multi wire cable Procedure Install an AISG multi wire cable that is not configured with an AISG extension cable a Use an M3 flat head screwdriver to loosen the screws on the dustproof cap on the RET port and remove the dustproof cap b Link the waterproofed DB9 connector at one end of t...

Page 115: ...n AISG extension cable a Use an M3 flat head screwdriver to loosen the screws on the dustproof cap on the RET port and remove the dustproof cap b Link the waterproofed DB9 connector at one end of the AISG multi wire cable to the RET port on the RRU bottom and link the other end to the standard AISG male connector of the AISG extension cable as shown in Figure 9 18 Figure 9 18 Installing an RRU AIS...

Page 116: ...tch the tape evenly until the length of the tape becomes twice its original length Do not stretch the PVC insulation tape when wrapping the PVC insulation tape 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 Ensure that neighboring layers are stuck to each other Ensure that the adhesive surface of the t...

Page 117: ...ctions in 9 1 Cabling Requirements g Label the installed cables according to the instructions in Attaching an L Shaped Label End 9 8 Installing an RRU Alarm Cable This section describes the procedure for installing an RRU alarm cable Procedure Step 1 Use an M3 Phillips screwdriver to loosen the screws on the dustproof cap on the EXT_ALM port and remove the dustproof cap Step 2 Connect the waterpro...

Page 118: ...des of the waterproof DB15 male connector to 0 4 N m 3 54 lbf in Step 4 Connect the eight cord end terminals at the other end to external alarm devices Remove insulated protective tubes from the cord end terminals before connecting the cord end terminals to devices as shown in Figure 9 22 Use insulating adhesive tapes to wrap cord end terminals that are not in use and fix them at a proper position...

Page 119: ...s Figure 9 23 Method for handling cord end terminals that are not in use Step 5 Route the cables according to the instructions in 9 1 Cabling Requirements Step 6 Label the installed cables according to the instructions in Attaching an L Shaped Label End 9 9 Opening the Cover Plate of an RRU Cabling Cavity This section describes the procedure for opening the cover plate of an RRU cabling cavity Pro...

Page 120: ...Use an M5 Phillips screwdriver to loosen the three screws on the cover plate of the RRU cabling cavity and open the cover plate as shown in Figure 9 24 Figure 9 24 Opening the cover plate of the RRU cabling cavity 1 Cover plate 2 Cabling cavity 3 Clip 4 Cable trough for the power cable 5 Waterproof block 6 Cable trough for the fiber optical cable Step 3 Loosen the screws on the clip using an M4 Ph...

Page 121: ...n describes the procedure for installing a CPRI optical fiber Prerequisites Before the installation single mode optical modules can be distinguished from multimode optical modules in either of the following ways SM and MM labels on an optical module SM indicates a single mode optical module and MM indicates a multimode optical module Color of the puller on an optical module Blue indicates a single...

Page 122: ... module and before connecting the optical fiber keep the dustproof cap in the port of the optical module The CPRI optical cables must be correctly connected in one time during the installation Otherwise the RRU may become faulty causing cells to fail to provide services Procedure Step 1 Lower the pullers of two optical modules insert one optical module into the CPRI0 port on the RRU and the other ...

Page 123: ... provide services To avoid any damage to optical fibers the fibers connected to the RRU must be installed according to the installation process For details about the installation process see 9 3 Installing RRU Cables When installing CPRI optical fibers for dual fiber bidirectional optical modules remove the dustproof caps from the ports on the optical module and those from the optical fiber connec...

Page 124: ...RI optical fibers for single fiber bidirectional optical modules Step 3 Route the cables according to the instructions in 9 1 Cabling Requirements Step 4 Label the installed fibers according to the instructions in Attaching an L Shaped Label End 9 11 Installing an RRU power cable This section describes the procedure for installing an RRU power cable Prerequisites A female connector pressfit type i...

Page 125: ...N wire is red and the NEG wire is blue DCD U 11 B EPC5 connector DCD U 12 B Before installing RRU power cables ensure that the upper level circuit breaker is disconnected and the power cable has no voltage A drip loop is required for the position between the RRU port and the cable preventing rain from damaging the RRU When installing the RRU power cable connect the power cable to the RRU connector...

Page 126: ...s power the maximum number of RRUs that can be connected to the EPU depends on the cabinet type For details about RRU power cable connections see DBS3900 Installation Guide or DBS5900 Installation Guide Step 3 Route the cables according to the instructions in 9 1 Cabling Requirements Step 4 Label the installed fibers according to the instructions in Attaching a Cable Tying Label End 9 12 Closing t...

Page 127: ...awei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 119 Figure 9 30 Closing clips Step 2 Insert waterproof blocks into vacant cable troughs in the cabling cavity as shown in Figure 9 31 Ensure that cables and waterproof blocks are properly inserted into troughs ...

Page 128: ...lose the cover plate of the RRU cabling cavity Use an M5 torque screwdriver to partially tighten the screws on the cover plate in the sequence shown in Figure 9 32 Then tighten the screws to 2 N m 17 7 lbf in in the same sequence The RRU cabling cavity must be securely tightened to prevent water Figure 9 32 Closing the cover plate of an RRU cabling cavity Step 4 Take off the ESD gloves and pack up...

Page 129: ...RRU3269 Installation Guide 9 Installing RRU Cables Issue Draft B 2018 05 15 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 121 End ...

Page 130: ...s of the RRU cabling cavity and the cover plate for the cabling cavity is securely installed In addition vacant RF ports are covered with dustproof caps and the caps are tightened 5 There are no connectors or joints on each power cable or PGND cable 6 The terminals at two ends of each power cable or PGND cable are securely soldered or crimped 7 None of power cables and PGND cables can be short cir...

Page 131: ...stalled check the power on status of an RRU After you unpack an RRU you must power on it within 24 hours If you power off the RRU for maintenance you must restore power to the RRU within 24 hours Figure 11 1 shows the RRU power on check process For details about how to power on an RRU and how to power off an RRU see section Powering On the RRU and section Powering Off the RRU in RRU Maintenance Gu...

Page 132: ...dential Copyright Huawei Technologies Co Ltd 124 Figure 11 1 RRU power on check process a The normal input voltage of an RRU is 48 V DC The voltage of the external power supply should range from 36 V DC to 57 V DC b The RUN indicator on the RRU is on for 1s and off for 1s The ALM indicator is steady off ...

Page 133: ...male Connector to the RRU Power Cable on the RRU Side This section describes the procedure for adding a female connector to the RRU power cable on the RRU side 12 1 Adding a Female Connector to the RRU Power Cable on the RRU Side This section describes the procedure for adding a female connector to the RRU power cable on the RRU side Context Figure 12 1 shows the cable diagram on labels ...

Page 134: ...onnector to the RRU power cable on the RRU side by strictly following the following operations Otherwise damage to the RRU or personal injury may occur Procedure Step 1 Determine the length of the power cable for different operations based on the labels as shown in Figure 12 2 Figure 12 2 Determining the length of the power cable Step 2 Strip the specified length of the sheath off the power cable ...

Page 135: ...off each core wire The length must be consistent with the length of the notch in the female connector as shown in Figure 12 4 Figure 12 4 Stripping the sheath off each core wire End Exception Handling If the power terminal or cable is damaged or abnormal remove the power cable Step 1 Press the spring clip of the power terminal using a screwdriver and remove the power cable Figure 12 5 Pressing the...

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