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2.1 RRU Equipment

The RRU is a remote radio unit.

The RRU has the following functions:

l

The RRU receives RF signals from the antenna system, down-converts the signals to IF
signals, and then transmits them to the BBU or the macro NodeB after amplification,
analog-to-digital conversion, digital down-conversion, matched filtering, and Digital
Automatic Gain Control (DAGC).

l

The RRU receives downlink baseband signals from the BBU or the macro NodeB, forwards
data from its cascaded RRU, performs filtering and digital-to-analog conversion, and up-
converts RF signals to the transmitting frequency band.

l

The RRU multiplexes RX and TX signals over RF channels and filters the RX signals and
TX signals. This enables the RX signals and TX signals to share the same antenna path.

2.1.1 Appearance of the RRU

The RRU features a modular structure with its ports at the module bottom and on the cabling
cavity.

2.1.2 LEDs on the RRU

The LEDs, on the LED panel of the RRU, indicate the running status of the RRU.

2.1.3 Panels of the RRU

The RRU has a bottom panel, a cabling cavity panel, and an LED panel.

2.1.1 Appearance of the RRU

The RRU features a modular structure with its ports at the module bottom and on the cabling
cavity.

shows the RRU. On the left is a front view of the RRU without the housing, in the

middle is a side view of the RRU without the housing, and on the right is a front view of the
RRU housing.

Figure 2-1

RRU

2 RRU and SRXU Hardware

RRU

User Guide

2-2

Huawei Proprietary and Confidential

Copyright © Huawei Technologies Co., Ltd

Issue 01 (2008-04-18)

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Содержание RRU

Страница 1: ...RRU V200R001 User Guide Issue 01 Date 2008 04 18 Part Number 00394301 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd ...

Страница 2: ...y form or by any means without prior written consent of Huawei Technologies Co Ltd Trademarks and Permissions and other Huawei trademarks are the property of Huawei Technologies Co Ltd All other trademarks and trade names mentioned in this document are the property of their respective holders Notice The information in this document is subject to change without notice Every effort has been made in ...

Страница 3: ... 2 LEDs on the SRXU 2 7 2 2 3 Panels of the SRXU 2 8 2 3 RRU Cables 2 10 2 3 1 PGND cable of the RRU 2 11 2 3 2 Power Cable of the RRU 2 11 2 3 3 CPRI Optical Cable 2 12 2 3 4 AISG Multi Wire Cable of the RRU SRXU 2 13 2 3 5 AISG Extension Cable of the RRU SRXU 2 14 2 3 6 RF Jumper of the RRU SRXU 2 15 2 3 7 Alarm Cable of the RRU 2 18 2 4 SRXU Cables 2 19 2 4 1 PGND Cable of the SRXU 2 20 2 4 2 P...

Страница 4: ...XU 3 83 3 6 1 Installing the SRXU on a Single RRU 3 84 3 6 2 Installing the SRXUs on the Two RRUs 3 87 3 6 3 Installing the SRXUs on the Three RRUs 3 94 3 7 Installing RRU and SRXU Cables 3 97 3 7 1 Installing the PGND Cable of the RRU SRXU 3 98 3 7 2 Installing the 48 V DC Power Cable of the RRU SRXU 3 100 3 7 3 Installing the RF Jumper of the RRU SRXU 3 106 3 7 4 Installing the CPRI Optical Cabl...

Страница 5: ...wering Off the RRU SRXU 4 4 4 3 Replacing an RRU 4 4 4 4 Replacing an SRXU 4 6 4 5 Replacing an Optical Module 4 8 Index i 1 RRU User Guide Contents Issue 01 2008 04 18 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd iii ...

Страница 6: ......

Страница 7: ...Figure 2 16 DC power cable 2 20 Figure 2 17 AISG multi wire cable 2 21 Figure 2 18 AISG extension cable 2 22 Figure 2 19 CPRI optical cable 2 23 Figure 2 20 Feeder jumper 2 24 Figure 2 21 Interconnect jumper 2 25 Figure 3 1 Installation modes of one RRU 3 4 Figure 3 2 Installation modes of one RRU and one SRXU 3 4 Figure 3 3 Installation modes of two RRUs 3 5 Figure 3 4 Installation modes of two R...

Страница 8: ...the label to the cable 3 26 Figure 3 30 Mounting the upper fixture assembly 3 31 Figure 3 31 Holes in the fixture assembly 3 31 Figure 3 32 Measuring L1 and L2 3 32 Figure 3 33 Holes in the multi purpose attachment plate 3 32 Figure 3 34 Securing the multi purpose attachment plate to the mounting plate 3 33 Figure 3 35 Installing the third pole fixture 3 33 Figure 3 36 Installing the mounting plat...

Страница 9: ... plate 3 59 Figure 3 71 Securing the multi purpose attachment plate to the bottom of the second mounting plate 3 60 Figure 3 72 Installing the second mounting plate 3 60 Figure 3 73 Securing the second mounting plate to the first one 3 61 Figure 3 74 Installing the third mounting plate 3 62 Figure 3 75 Securing the third mounting plate to the first one 3 63 Figure 3 76 Holes in the multi purpose a...

Страница 10: ...ure 3 113 Securing the attachment plate to one SRXU 3 90 Figure 3 114 Installing the SRXU 3 91 Figure 3 115 Securing the SRXU 3 92 Figure 3 116 Remove the plastic housings 3 93 Figure 3 117 SRXUs installed on the two rear mounted RRUs 3 93 Figure 3 118 SRXUs installed on the three RRUs 3 94 Figure 3 119 Remove the plastic housings 3 95 Figure 3 120 Securing the connecting boards 3 96 Figure 3 121 ...

Страница 11: ...the SRXU cabling cavity 3 111 Figure 3 141 Cable trough for the optical cable in the SRXU cabling cavity 3 112 Figure 3 142 Cable troughs in the cabling cavity 3 113 Figure 3 143 Installing the housing 3 116 Figure 3 144 Securing the housing 3 117 Figure 4 1 Removing the screws at the bottom of the mounting plate 4 5 Figure 4 2 Removing the screws at the bottom of the SRXU 4 7 RRU User Guide Figur...

Страница 12: ......

Страница 13: ...able 2 21 Table 2 14 Pin assignment for the wires of the AISG multi wire cable 2 22 Table 2 15 Pin assignment for the wires of the AISG extension cable 2 23 Table 2 16 Pin assignment for the fiber tails of the CPRI optical cable 2 24 Table 2 17 Installation positions of the CPRI optical cable 2 24 Table 2 18 RF jumper connections of the RRU 2 25 Table 3 1 Tools and instruments 3 29 Table 3 2 Conne...

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Страница 15: ...uct Name Product Version RRU V100R009 V100R010 V200R001 Intended Audience This document is intended for l NodeB installers l System engineers l Site maintenance engineers Change History For changes in the document refer to Changes in RRU User Guide Organization 1 Safety Information 2 RRU and SRXU Hardware This describes the RRU equipment SRXU equipment and related cables 3 Installing RRU and SRXU ...

Страница 16: ...ates a potentially hazardous situation that if not avoided could cause equipment damage data loss and performance degradation or unexpected results TIP Indicates a tip that may help you solve a problem or save your time NOTE Provides additional information to emphasize or supplement important points of the main text 2 General Conventions Convention Description Times New Roman Normal paragraphs are...

Страница 17: ...xample click OK Multi level menus are in boldface and separated by the signs For example choose File Create Folder 5 Keyboard Operation Convention Description Key Press the key For example press Enter and press Tab Key1 Key2 Press the keys concurrently For example pressing Ctrl Alt A means the three keys should be pressed concurrently Key1 Key2 Press the keys in turn For example pressing Alt A mea...

Страница 18: ......

Страница 19: ...n and Note items in the package of documents do not cover all the safety precautions that must be followed They only provide the generic safety precautions for operations Symbols DANGER This symbol indicates that casualty or serious accident may occur if you ignore the safety instruction CAUTION This symbol indicates that serious or major injury may occur if you ignore the safety instruction NOTE ...

Страница 20: ... l Ground the device before installation and remove the ground cable after uninstallation l Do not operate the device in the absence of a ground conductor Do not damage the ground conductor l The unit or system must be permanently connected to the protection ground before operation Check the electrical connection of the device before operation and ensure that the device is reliably grounded Safety...

Страница 21: ...r supply facility follow the local safety regulations l When operating the AC power supply facility follow the local safety regulations l When operating the high voltage and AC power supply facilities use the specific tools instead of common tools l When the operation is performed in a damp environment ensure that water is kept off the device If the cabinet is damp or wet shut down the power suppl...

Страница 22: ...static Discharge CAUTION The static electricity generated by the human body may damage the electrostatic sensitive components on the circuit board such as the large scale integrated circuit LIC In the following situations the human body generates a static electromagnetic field l Movement of body parts l Clothes friction l Friction between shoes and the ground l Holding plastic in hand The static e...

Страница 23: ...ad the safety precautions for the handling and connection of the storage battery Incorrect operation of storage batteries may cause danger During operation ensure the following l Prevent any short circuit l Prevent the electrolyte from overflowing and leakage Electrolyte overflow may damage the device It will corrode the metal parts and the circuit boards and ultimately damage the device and cause...

Страница 24: ...o be used disconnect the battery in use before performing any other operation Harmful Gas CAUTION l Do not use unsealed lead acid storage batteries because the gas emitted from it may result in fire or device corrosion l Lay the storage battery horizontally and fix it properly The lead acid storage battery in use will emit flammable gas Therefore store it in a place with good ventilation and take ...

Страница 25: ...t dispose of the lithium battery in fire 1 5 Radiation Electromagnetic Field Exposure CAUTION High power radio frequency signals are harmful to human body Before installing or maintaining an antenna on a steel tower or mast with a large number of transmitter antennas the operator should coordinate with all parties to ensure that the transmitter antennas are shut down The base transceiver station B...

Страница 26: ...agnifying glass or eye loupe is used to stare into the bare optical fiber end Read the following guidelines to prevent laser radiation l Only the trained and authorized personnel can perform the operation l Wear a pair of eye protective glasses when you are handling lasers or optical fibers l Ensure that the optical source is switched off before disconnecting optical fiber connectors l Never look ...

Страница 27: ...re well prepared for working at heights Lifting Weights CAUTION Do not access the areas under the arm of the crane and the goods in suspension when lifting weights l Ensure that the operators have been trained and qualified l Check the weight lifting tools and ensure that they are intact l Lift the weight only when the weight lifting tools are firmly mounted onto the weight bearing object or the w...

Страница 28: ...take protective measures on the base of the ladder against slippage Place the ladder on a stable ground When climbing the ladder ensure the following l The gravity of the body does not shift from the edge of the ladder l Keep balance on the ladder before performing any operation l Do not climb higher than the fourth highest step of the ladder If you tend to climb to the roof the length of the ladd...

Страница 29: ...gnetic shielding and internal cables Metal shavings from the drilling may result in a short circuit of the circuit board if they get into the cabinet l Before drilling a hole on the cabinet remove the cables from the cabinet l During the drilling wear blinkers to protect your eyes RRU User Guide 1 Safety Information Issue 01 2008 04 18 Huawei Proprietary and Confidential Copyright Huawei Technolog...

Страница 30: ...g heavy objects CAUTION l Be careful when moving heavy objects l When moving the chassis outwards be aware about the unfixed or heavy objects on the chassis to prevent injury l Two persons should be available to move a chassis one person must not move a heavy chassis When moving a chassis keep your back straight and move stably to prevent a sprain l When moving or lifting a chassis hold the handle...

Страница 31: ... temperature movement of the cable may damage the plastic skin of the cable To ensure the construction safety comply with the following requirements l When installing cables ensure that the environment temperature is above 0oC l If cables are stored in the place below 0oC move the cables into a place at a room temperature and store the cables for more than 24 hours before installation l Move the c...

Страница 32: ......

Страница 33: ...ls for RF signals 2 3 RRU Cables The RRU cables include the PGND cable power cable AISG multi wire cable AISG extension cable CPRI optical cable RF jumper and alarm cable 2 4 SRXU Cables The SRXU cables include the PGND cable power cable AISG multi wire cable AISG extension cable CPRI optical cable and RF jumper RRU User Guide 2 RRU and SRXU Hardware Issue 01 2008 04 18 Huawei Proprietary and Conf...

Страница 34: ...nd TX signals This enables the RX signals and TX signals to share the same antenna path 2 1 1 Appearance of the RRU The RRU features a modular structure with its ports at the module bottom and on the cabling cavity 2 1 2 LEDs on the RRU The LEDs on the LED panel of the RRU indicate the running status of the RRU 2 1 3 Panels of the RRU The RRU has a bottom panel a cabling cavity panel and an LED pa...

Страница 35: ...ms excluding VSWR related alarms OFF The module is operational TX_ACT Green ON The module is running OFF No specific meaning VSWR Red ON VSWR related alarms are reported OFF No VSWR related alarm is reported CPRI_W Red green ON green The CPRI link is normal ON red The optical module receives local alarms related to LOS 0 5s ON 0 5s OFF red The CPRI link is out of lock OFF The optical module is not...

Страница 36: ...s powered off 2 1 3 Panels of the RRU The RRU has a bottom panel a cabling cavity panel and an LED panel Figure 2 2 shows the panels of the RRU 2 RRU and SRXU Hardware RRU User Guide 2 4 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd Issue 01 2008 04 18 ...

Страница 37: ...els of the RRU Table 2 2 describes the ports and LEDs on the panels of the SRXU RRU User Guide 2 RRU and SRXU Hardware Issue 01 2008 04 18 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 2 5 ...

Страница 38: ...ovides two RX channels for RF signals The SRXU receives RF signals from the antenna system down converts the RF signals to IF signals and then transmits them to the RRU after amplification analog to digital conversion digital down conversion matched filtering and DAGC The RRU forwards the signals to the BBU or the macro NodeB 2 2 1 Appearance of the SRXU The SRXU features a modular structure with ...

Страница 39: ...and their status Table 2 3 LEDs on the SRXU Label Color Status Description RUN Green ON The module has power input yet the module is faulty OFF The module has no power input or the module is faulty 1s ON 1s OFF The module is operational 0 5s ON 0 5s OFF Software is being loaded to the module ALM Red ON The module is reporting alarms OFF The module is operational CPRI_W Red green ON green The CPRI ...

Страница 40: ...elated to LOS 0 5s ON 0 5s OFF red The CPRI link is out of lock OFF The optical module is not in position or is powered off 2 2 3 Panels of the SRXU The SRXU has a bottom panel a cabling cavity panel and an LED panel Figure 2 4 shows the panels of the SRXU 2 RRU and SRXU Hardware RRU User Guide 2 8 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd Issue 01 2008 04 18 ...

Страница 41: ...els of the SRXU Table 2 4 describes the ports and LEDs on the panels of the SRXU RRU User Guide 2 RRU and SRXU Hardware Issue 01 2008 04 18 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 2 9 ...

Страница 42: ...shielded 48 V DC power cable The cable feeds external 48 V DC power to the RRU 2 3 3 CPRI Optical Cable This describes the CPRI optical cable It connects the BBU3836 to the RRU and transmits CPRI signals between them 2 3 4 AISG Multi Wire Cable of the RRU SRXU The five meter long AISG multi wire cable connects the RRU SRXU to the Remote Control Unit RCU If both RRU and SRXU are installed the AISG ...

Страница 43: ...minimum cross sectional area of 16 mm2 Figure 2 5 shows the PGND cable Figure 2 5 PGND cable OT terminals need to be added on site You can determine the color of the cable and whether to use 2 hole terminals according to local standards Figure 2 6 shows the 2 hole terminal Figure 2 6 2 hole terminal Installation Position One end of the PGND cable is connected to the grounding bolt on the RRU and t...

Страница 44: ...s connected to the NEG port on the cabling cavity of the RRU and the OT terminal on the black or brown wire is connected to the RTN port on the cabling cavity of the RRU At the other end of the cable a proper terminal is made depending on field requirements and is then connected to the power supply on site 2 3 3 CPRI Optical Cable This describes the CPRI optical cable It connects the BBU3836 to th...

Страница 45: ... optical cable Table 2 8 Installation positions of the CPRI optical cable One End The Other End CPRI port on the WBBPa CPRI_W port on the RRU 2 3 4 AISG Multi Wire Cable of the RRU SRXU The five meter long AISG multi wire cable connects the RRU SRXU to the Remote Control Unit RCU If both RRU and SRXU are installed the AISG multi wire cable only connects the SRXU and the RCU This cable is optional ...

Страница 46: ...sion cable If both the RRU and the SRXU are installed the waterproof DB9 connector is linked to the RET port at the bottom of the SRXU and the standard AISG female connector is linked to the corresponding connector on the RCU or to the AISG extension cable 2 3 5 AISG Extension Cable of the RRU SRXU When the distance between the RCU and the RRU SRXU is longer than 5 m the AISG multi wire cable is n...

Страница 47: ... Installation Position The AISG female connector is linked to the corresponding connector on the RCU and the AISG male connector is linked to the AISG female connector of the AISG multi wire cable 2 3 6 RF Jumper of the RRU SRXU The RF jumper of the RRU can be categorized into two types feeder jumper and interconnect jumper The interconnect jumper is optional depending on the site configuration 2 ...

Страница 48: ...tween the antenna and the RRU SRXU is shorter than 14 m the RRU SRXU is directly connected to the antenna through the antenna jumper l When the distance between the antenna and the RRU SRXU is longer than 14 m the antenna jumper should be shorter than 2 m If you prepare the jumper by yourself it is recommended that the feeder jumper be 2 m long at most Ensure that the antenna jumper is connected t...

Страница 49: ...ode 2 x 1 in no TX diversity mode l Two RRUs l Two dual polarization antennas l Four antenna jumpers l The DIN connectors of the four antenna jumpers are linked to the ANT_TX RXA ports and ANT_RXB ports on RRU 0 and RRU 1 2 x 2 in no TX diversity mode 1 x 1 in TX diversity mode l Two RRUs l One dual polarization antenna l Two feeder jumpers and one interconnect jumper l The DIN connectors of the t...

Страница 50: ...arm signals and 1 channel RS485 signals from external devices to the RRU Thus the external signals are monitored Appearance The cable has a DB15 male connector at one end and eight cord end terminals at the other end as shown in Figure 2 13 NOTE If the cord end terminals of the cable do no match the ports on the external devices cut off the cord end terminals and make proper terminals on site Figu...

Страница 51: ...of the SRXU The PGND cable ensures the grounding of the SRXU 2 4 2 Power Cable of the SRXU The SRXU uses a shielded DC power cable The cable feeds power from the RRU to the SRXU 2 4 3 AISG Multi Wire Cable of the RRU SRXU The five meter long AISG multi wire cable connects the RRU SRXU to the Remote Control Unit RCU If both RRU and SRXU are installed the AISG multi wire cable only connects the SRXU...

Страница 52: ...n site You can determine the color of the cable and whether to use 2 hole terminals according to local standards Figure 2 15 shows the 2 hole terminal Figure 2 15 2 hole terminal Installation Position One end of the PGND cable is connected to the grounding bolt on the SRXU and the other end is connected to the grounding bolt on the RRU 2 4 2 Power Cable of the SRXU The SRXU uses a shielded DC powe...

Страница 53: ...ttom of the SRXU 2 4 3 AISG Multi Wire Cable of the RRU SRXU The five meter long AISG multi wire cable connects the RRU SRXU to the Remote Control Unit RCU If both RRU and SRXU are installed the AISG multi wire cable only connects the SRXU and the RCU This cable is optional Appearance The cable has a waterproof DB9 connector at one end and a standard AISG female connector at the other end as shown...

Страница 54: ... SRXU and the standard AISG female connector is linked to the corresponding connector on the RCU or to the AISG extension cable 2 4 4 AISG Extension Cable of the RRU SRXU When the distance between the RCU and the RRU SRXU is longer than 5 m the AISG multi wire cable is not long enough to cover the distance In this case the AISG extension cable is used The AISG extension cable is 15 m long Appearan...

Страница 55: ... is linked to the AISG female connector of the AISG multi wire cable 2 4 5 CPRI Optical Cable This describes the CPRI optical cable It connects the BBU3836 to the RRU and transmits CPRI signals between them Appearance The CPRI optical cable is a multi mode 2 wire cable with DLC connectors at both ends Figure 2 19 shows the CPRI optical cable Figure 2 19 CPRI optical cable 1 DLC connector 2 Label o...

Страница 56: ...e RF jumper of the RRU can be categorized into two types feeder jumper and interconnect jumper The interconnect jumper is optional depending on the site configuration Antenna Jumper of the RRU SRXU The antenna jumper transmits and receives RF signals Appearance The antenna jumper has a DIN male connector at each end as shown in Figure 2 20 Figure 2 20 Feeder jumper Installation Position The antenn...

Страница 57: ...ct jumper are linked to the ports labeled RX_IN OUT on two RRUs or two SRXUs respectively RF Jumper Connections of the RRU One end of the RF jumper is connected to the RF ports on the RRU and the other end to the feeder Which RF port to use depends on the networking modes Table 2 18 describes the connections of the RF jumpers in different RRU networking modes Table 2 18 RF jumper connections of th...

Страница 58: ...Three RRUs l Three dual polarization antennas l Six antenna jumpers l The DIN connectors of the six antenna jumpers are linked to the ANT_TX RXA ports and ANT_RXB ports on RRU 0 RRU 1 and RRU 2 3 x 2 in no TX diversity mode 4 way RX diversity l One RRU l One SRXU l Two antenna jumpers and one DC power cable l The DIN connectors of the two antenna jumpers are linked to the ANT_RXC and ANT_RXD ports...

Страница 59: ...e RRU needs to be installed on the ground or rooftop it supports one module two module centralized and three module centralized installation modes 3 5 Installing the RRU on the Tower Before installing the RRU on the tower you need to assemble the parts and then lift them up to the tower 3 6 Installing the SRXU This describes how to install the SRXU on the RRU in one module two module centralized o...

Страница 60: ...0 Checklists for Hardware Installation of Distributed NodeBs and Mini NodeBs This describes the checklists for hardware installation and cable connections 3 Installing RRU and SRXU Hardware RRU User Guide 3 2 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd Issue 01 2008 04 18 ...

Страница 61: ...amages to the cables or prevent interference to the signals 3 1 5 Connections of RRU and SRXU Cables This describes the cable connections between the RRU SRXU and other devices such as BBU3806 external power supply and antenna system 3 1 6 Labels for DBS3836 Cables This presents the types appearance and installation of the labels for DBS3836 cables The labels are attached to the power cable of the...

Страница 62: ...on modes of one RRU and one SRXU Figure 3 2 Installation modes of one RRU and one SRXU Installation Modes of Two RRUs Figure 3 3 shows the installation modes of two RRUs 3 Installing RRU and SRXU Hardware RRU User Guide 3 4 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd Issue 01 2008 04 18 ...

Страница 63: ... modes of two RRUs and two SRXUs Figure 3 4 Installation modes of two RRUs and two SRXUs Installation Modes of Three RRUs Figure 3 5 shows the installation modes of three RRUs RRU User Guide 3 Installing RRU and SRXU Hardware Issue 01 2008 04 18 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 3 5 ...

Страница 64: ...on Modes of Three RRUs and Three SRXUs Figure 3 6 shows the installation modes of three RRUs and three SRXUs 3 Installing RRU and SRXU Hardware RRU User Guide 3 6 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd Issue 01 2008 04 18 ...

Страница 65: ...Huawei offers the recommended space requirements NOTE The following figures related to the space requirements assume that the cabling cavities are on the left side of the RRU and SRXU If the RRU and SRXU are installed with the cabling cavities on the right the horizontal space requirements are opposite to what are shown in the figures Space Requirements of One RRU with and Without the SRXU Figure ...

Страница 66: ... equipment for maintenance l At least 200 mm above the equipment for maintenance l At least 600 mm on the left of the equipment for maintenance l At least 300 mm on the right of the equipment for maintenance l Regardless of whether the SRXU is fixed to the RRU the space requirements are the same Figure 3 8 shows the minimal space requirements of one RRU with and without the SRXU 3 Installing RRU a...

Страница 67: ...e equipment for maintenance l 400 mm on the left of the equipment for maintenance l 100 mm on the right of the equipment for maintenance When two RRUs need to be combined space requirements of each RRU must be met In addition the space between the two RRUs should stay within the range shown in Figure 3 9 Figure 3 9 Space requirements of two combined RRUs unit mm The space between the two RRUs is a...

Страница 68: ...is recommended that the space is 1 200 mm between the bottom and the ground for easy maintenance l At least 800 mm in front of the equipment for maintenance l At least 200 mm above the equipment for maintenance l At least 800 mm on the left of the equipment for maintenance l At least 800 mm on the right of the equipment for maintenance l Regardless of whether the SRXUs are fixed to the RRU the spa...

Страница 69: ...on the right of the equipment for maintenance 3 1 3 Cabling Specifications for the NodeB This describes the cabling specifications for the power cables and PGND cables The power cables and signal cables must be routed in compliance with the cabling specifications to avoid electromagnetic interference to the signals Requirements for Bending Radius of the Cables Cable Requirements for the Bending Ra...

Страница 70: ...bles of different types are routed separately l Cables of different types are not crossed l The space between cables of different types are greater than 30 mm when the cables are routed parallel inside the cabinet The space between cables of different types are greater than 100 mm when the cables are routed parallel outside the cabinet If such requirements cannot be met If such requirements cannot...

Страница 71: ...ith the engineering design and general cabling specifications l Reserve proper cable surpluses where the optical cables are curved l Do not stretch step or place heavy objects on the optical cables Keep the cables away from sharp objects to avoid damage The optical cable that is curved or pressed or the optical connector which is damaged cannot be used l Extra optical cables are coiled on the spec...

Страница 72: ...al cable between the BBU and the RRU l RRU power cable Requirements for Routing Cables Through the Cable Hole at the Bottom of the Cabinet Routing RRU cables through the cable hole at the bottom of the cabinet should meet the following requirements l If you route the cable through the cable hole at the bottom of the cabinet coat the cable with the PVC protection tube as shown in Figure 3 13 3 Inst...

Страница 73: ...ould be put in order according to the routing direction and then should be fastened using the cable clips l Determine the installation points of the clips according to the field requirements Usually the distance between two clips should be less than or equal to 1 5 m Install the clips with even spacing and in the same direction l The clip should be vertical to the cables and should not be bent The...

Страница 74: ... on the clip until the cables are properly arranged and routed Figure 3 15 shows routing the cables in the cable rack 3 Installing RRU and SRXU Hardware RRU User Guide 3 16 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd Issue 01 2008 04 18 ...

Страница 75: ...les in order from top down to ensure that the cables are not twisted or tangled with other cables Then use clips to fasten the cables l Determine the installation points of the clips according to the field requirements Usually the distance between two clips should be less than or equal to 1 5 m Install the clips with even spacing and in the same direction RRU User Guide 3 Installing RRU and SRXU H...

Страница 76: ...6 l Figure 3 16 Installing the cable clip on the tower l Do not fasten the screws on the clip until the cables are properly arranged and routed Figure 3 17 shows routing the cables in the cable rack 3 Installing RRU and SRXU Hardware RRU User Guide 3 18 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd Issue 01 2008 04 18 ...

Страница 77: ...devices such as BBU3806 external power supply and antenna system Cable Connections of One RRU with and Without the SRXU Figure 3 18 and Figure 3 19 show the cable connections of one RRU with and without the SRXU RRU User Guide 3 Installing RRU and SRXU Hardware Issue 01 2008 04 18 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 3 19 ...

Страница 78: ...stance between the RRU and the RCU is too long the AISG extension cable is used between the AISG multi wire cable and the RCU l The antenna jumper directly connects the RRU to the antenna When the distance between the RRU and the antenna is longer than 14 m the feeder is required 3 Installing RRU and SRXU Hardware RRU User Guide 3 20 Huawei Proprietary and Confidential Copyright Huawei Technologie...

Страница 79: ...rconnection between the RRU and the SRXU however cannot be implemented Cable Connections of Multiple RRUs with and Without the SRXUs Figure 3 20 and Figure 3 21 show the cable connections of multiple RRUs with and without the SRXUs RRU User Guide 3 Installing RRU and SRXU Hardware Issue 01 2008 04 18 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 3 21 ...

Страница 80: ...connections of multiple RRUs with the SRXUs NOTE Interconnect jumper is used to implement the interconnection between combined RRUs or between combined SRXUs The interconnection between the RRU and the SRXU however cannot be implemented 3 Installing RRU and SRXU Hardware RRU User Guide 3 22 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd Issue 01 2008 04 18 ...

Страница 81: ...h BBU3 as shown in Figure 3 22 Figure 3 22 Label for the BBU power cable unit mm l Label for the RRU power cable Quantity of delivered labels quantity of RRU power cables x 2 Installation positions of the labels 3 cm away from each end of the power cable Same labels are attached to both ends of the power cable X ranges from 0 to 5 indicating RRU0 through RRU5 as shown in Figure 3 23 Figure 3 23 La...

Страница 82: ...ting the optical ports on the BBU and RRU as shown in Figure 3 25 Figure 3 25 Label for the CPRI optical cable unit mm l Label for the alarm cable Quantity of delivered labels quantity of RRU alarm cables x 2 Installation positions of the labels near the cable hole where the RRU alarm cable is routed out of the cabling cavity A label is attached near the cable hole where the RRU alarm cable is rou...

Страница 83: ...cabling cavity X ranges from 0 to 5 indicating BBU0 through BBU5 as shown in Figure 3 27 Figure 3 27 Label for the BBU alarm cable unit mm Attaching a Label to a Cable 1 Lead a cable tie through each pair of holes in the label as shown in Figure 3 28 The cable ties should be led in the same direction for better appearance Figure 3 28 Leading cable ties through the holes RRU User Guide 3 Installing...

Страница 84: ...ing preparations installing the RRU and SRXU connecting related cables checking the hardware installation and installing the housing of the RRU and SRXU Context CAUTION After the NodeB is installed it must be powered on within 48 hours NOTE Contact Huawei engineers for confirmation if l You choose to prepare the devices cables and connectors by yourself l You need to shorten the cable of a specifi...

Страница 85: ... Step 7 Install the housing of the RRU and SRXU For details refer to 3 9 Installing the Housing of the RRU and SRXU End 3 3 Preparing for the NodeB Installation This describes how to prepare for the NodeB installation Before installing the NodeB you need to unpack the NodeB and prepare necessary tools 3 3 1 Unpacking Inspection for the NodeB This describes how to unpack the NodeB and check the int...

Страница 86: ...ct the local Huawei office Step 2 Check whether the packing case is in good condition If Then The packing case is in good condition Go to Step 3 The packing case is damaged or soaked Find out the cause and contact the local Huawei office Step 3 Open the packing case Check the shipped components according to the Packing List and then perform the next step according to the checking result If Then Th...

Страница 87: ...rs M3 M6 Cross screwdrivers M3 M6 Adjustable wrench Socket wrenches M6 M8 M12 M14 M17 and M19 Double offset ring wrenches M6 M8 M12 M14 M17 and M19 Combination wrench M17 and M19 Long arm wrench Pliers Sharp nose pliers diagonal pliers pincer pliers hand held electric drill file handsaw crowbar rubber hammer and claw hammer Auxiliary tools Brush tweezers paper knife bellows plumb soldering iron so...

Страница 88: ...l the mounting plate of the RRU The operation varies with the installation mode If Then The RRU needs to be installed on a metal pole Go to 3 4 1 1 Installing the Mounting Plates of the Single RRU on the Metal Pole The RRU needs to be installed on a wall Go to 3 4 1 2 Installing the Mounting Plate of the Single RRU on the Wall Step 2 Perform the operations in 3 4 1 3 Installing the Single RRU Modu...

Страница 89: ... Figure 3 31 If the 60 95 mm bolts are used use pair 1 If the 90 114 mm bolts are used use pair 2 Figure 3 31 Holes in the fixture assembly Step 3 Use the level bar to check whether the four ends of the fixture assembly are on the same plane Use the tape measure to check whether the two pole fixtures are parallel NOTE If the difference between L1 and L2 as shown in Figure 3 32 is beyond 1 mm the t...

Страница 90: ...Go to Step 4 Step 4 Use the holes numbered 1 in Figure 3 33 Figure 3 33 Holes in the multi purpose attachment plate Step 5 Use three screws M6 x 20 to secure the multi purpose attachment plate to the mounting plate as shown in Figure 3 34 3 Installing RRU and SRXU Hardware RRU User Guide 3 32 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd Issue 01 2008 04 18 ...

Страница 91: ...ng two bolts M10 x 40 as shown in Figure 3 35 Figure 3 35 Installing the third pole fixture Step 7 Install the mounting plate by fitting the tabs on the mounting plate into the anchor slots in the pole fixture as shown in Figure 3 36 RRU User Guide 3 Installing RRU and SRXU Hardware Issue 01 2008 04 18 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 3 33 ...

Страница 92: ...ture to the metal pole by tightening two bolts M10 x 110 between the third and the fourth pole fixtures as shown in Figure 3 37 3 Installing RRU and SRXU Hardware RRU User Guide 3 34 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd Issue 01 2008 04 18 ...

Страница 93: ...the Wall This describes how to install the mounting plate on the wall Procedure Step 1 Determine the position of the mounting plate 1 Determine the position of the mounting plate by referring to the engineering design and 3 1 2 Space Requirements of the RRU and SRXU Figure 3 38 shows the installed expansion bolt assemblies and the RRU RRU User Guide 3 Installing RRU and SRXU Hardware Issue 01 2008...

Страница 94: ...rking pen to mark the four anchor points You can also mark four points according to the inter hole distance as shown in Figure 3 39 Figure 3 39 Determining the anchor points Step 2 Drill a hole at each anchor point and install the expansion bolt assembly as shown in Figure 3 40 3 Installing RRU and SRXU Hardware RRU User Guide 3 36 Huawei Proprietary and Confidential Copyright Huawei Technologies ...

Страница 95: ...locate and drill holes again 3 Screw the expansion bolt slightly and put it into the hole Hammer the assembly until the expansion tube is completely buried into the hole 4 Remove the bolt M10 x 75 filling tube spring washer 10 and flat washer 10 in turn CAUTION After disassembling the expansion bolt assembly ensure that the top of the expansion tube is completely buried into the wall If it is not ...

Страница 96: ...finally into the expansion tube through the hole in the wall CAUTION When installing the bolt remove the filling tube and then use the insulating washer and insulating block that are delivered with the mounting plate as shown in Figure 3 42 Figure 3 42 Filling tube insulating washer and insulating block 3 Use the wrench to fix the mounting plate to the wall by tightening the bolts clockwise End 3 ...

Страница 97: ... mode Figure 3 43 One RRU in ordinary mode and the other in reverse mode NOTE l Before delivery the plastic housing of the RRU is already fixed to the module The previous figure omits the plastic housing for a better illustration of ordinary and reverse modes l Before delivery the plastic housing of the RRU is fixed in the assumption that the RRU needs to be installed in ordinary mode If you want ...

Страница 98: ...te before taking out the RRU l If you find that the plastic housing is put face up lay cardboards or packing bags on the ground Then take out the RRU and install the attachment plate Step 2 Fit the tabs on the attachment plate into the anchor slots of the mounting plate as shown in Figure 3 45 3 Installing RRU and SRXU Hardware RRU User Guide 3 40 Huawei Proprietary and Confidential Copyright Huaw...

Страница 99: ... slots in the mounting plate Step 3 Lead two screws M6 x 20 through the holes in the bottom of the module Then secure the module to the mounting plate as shown in Figure 3 46 RRU User Guide 3 Installing RRU and SRXU Hardware Issue 01 2008 04 18 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 3 41 ...

Страница 100: ...alling the Mounting Plates of the Two RRUs on the Metal Pole The RRU needs to be installed on a wall Go to 3 4 2 2 Installing the Mounting Plates of the Two RRUs on the Wall Step 2 Install the two RRU modules For details refer to 3 4 2 3 Installing the Two RRU Modules End 3 4 2 1 Installing the Mounting Plates of the Two RRUs on the Metal Pole This describes how to install the mounting plates on t...

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