Huawei Technologies RRU3832 Remote Radio Unit User Manual Hardware Description

Huawei Technologies Co.,Ltd Remote Radio Unit Hardware Description

User Manual IV

RRU3832&RRU3632Hardware DescriptionIssue 03Date 2014-01-20HUAWEI TECHNOLOGIES CO., LTD.
Copyright © Huawei Technologies Co., Ltd. 2014. All rights reserved.No part of this document may be reproduced or transmitted in any form or by any means without prior writtenconsent of Huawei Technologies Co., Ltd. Trademarks and Permissions and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.All other trademarks and trade names mentioned in this document are the property of their respective holders. NoticeThe purchased products, services and features are stipulated by the contract made between Huawei and thecustomer. All or part of the products, services and features described in this document may not be within thepurchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information,and recommendations in this document are provided "AS IS" without warranties, guarantees or representationsof any kind, either express or implied.The information in this document is subject to change without notice. Every effort has been made in thepreparation of this document to ensure accuracy of the contents, but all statements, information, andrecommendations in this document do not constitute a warranty of any kind, express or implied. Huawei Technologies Co., Ltd.Address: Huawei Industrial BaseBantian, LonggangShenzhen 518129People's Republic of ChinaWebsite: http://www.huawei.comEmail: support@huawei.comIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.i
About This DocumentPurposeThis document provides reference for planning and deploying DC blade RRU3832 andRRU3632 (referred to as RRU in this document). It presents the exterior and describes the ports,functions, cable types, connector specifications, and cable connections of the RRU.Product VersionsThe following table lists the product versions related to this document for RRU3832.Product Name Product VersionDBS3900 V100R004C00 and later versionsDBS3900 WCDMA V200R013C00 and later versionsDBS3900 LTE V100R006C00 and later versions The following table lists the product versions related to this document for RRU3632.Product Name Product VersionDBS3900 V100R008C00 and later versionsDBS3900 LTE V100R006C00 and later versions Intended AudienceThis document is intended for:lBase station installation engineerslSystem engineerslSite maintenance engineersRRU3832&RRU3632Hardware Description About This DocumentIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.ii
Organization1 Changes in RRU3832&RRU3632 Hardware DescriptionThis chapter describes the changes in RRU3832&RRU3632 Hardware Description.2 RRU IntroductionThis chapter describes the exterior and function of the RRU as well as the ports and indicatorson the RRU.3 RRU CablesThis chapter describes RRU cables.4 RF Cable Connections for the RRU3832&RRU3632RF cable connections for the RRU vary depending on the configurations of the RRU and antenna.5 RRU Auxiliary DevicesThis chapter describes RRU auxiliary devices.ConventionsSymbol ConventionsThe symbols that may be found in this document are defined as follows.Symbol DescriptionIndicates an imminently hazardous situation which, if notavoided, will result in death or serious injury.Indicates a potentially hazardous situation which, if notavoided, could result in death or serious injury.Indicates a potentially hazardous situation which, if notavoided, may result in minor or moderate injury.Indicates a potentially hazardous situation which, if notavoided, could result in equipment damage, data loss,performance deterioration, or unanticipated results.NOTICE is used to address practices not related to personalinjury.Calls attention to important information, best practices andtips.NOTE is used to address information not related to personalinjury, equipment damage, and environment deterioration. General ConventionsRRU3832&RRU3632Hardware Description About This DocumentIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.iii
The general conventions that may be found in this document are defined as follows.Convention DescriptionTimes New Roman Normal paragraphs are in Times New Roman.Boldface Names of files, directories, folders, and users are inboldface. For example, log in as user root.Italic Book titles are in italics.Courier New Examples of information displayed on the screen are inCourier New. Command ConventionsThe command conventions that may be found in this document are defined as follows.Convention DescriptionBoldface 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 | ... } Optional items are grouped in braces and separated byvertical bars. One item is selected.[ x | y | ... ] Optional items are grouped in brackets and separated byvertical bars. One item is selected or no item is selected.{ x | y | ... }*Optional items are grouped in braces and separated byvertical bars. A minimum of one item or a maximum of allitems can be selected.[ x | y | ... ]*Optional items are grouped in brackets and separated byvertical bars. Several items or no item can be selected. GUI ConventionsThe GUI conventions that may be found in this document are defined as follows.Convention DescriptionBoldface Buttons, menus, parameters, tabs, window, and dialog titlesare in boldface. For example, click OK.>Multi-level menus are in boldface and separated by the ">"signs. For example, choose File > Create > Folder. RRU3832&RRU3632Hardware Description About This DocumentIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.iv
Keyboard OperationsThe keyboard operations that may be found in this document are defined as follows.Format DescriptionKey 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 meansthe two keys should be pressed in turn. Mouse OperationsThe mouse operations that may be found in this document are defined as follows.Action DescriptionClick Select and release the primary mouse button without movingthe pointer.Double-click Press the primary mouse button twice continuously andquickly without moving the pointer.Drag Press and hold the primary mouse button and move thepointer to a certain position.RRU3832&RRU3632Hardware Description About This DocumentIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.v
ContentsAbout This Document.....................................................................................................................ii1 Changes in RRU3832&RRU3632 Hardware Description.......................................................12 RRU Introduction..........................................................................................................................22.1 RRU Exterior..................................................................................................................................................................32.2 RRU Functions...............................................................................................................................................................32.3 RRU Technical Specifications........................................................................................................................................42.4 RRU Ports.......................................................................................................................................................................52.5 RRU Indicators.............................................................................................................................................................102.6 Optical Modules...........................................................................................................................................................123 RRU Cables...................................................................................................................................143.1 RRU Cable List............................................................................................................................................................163.2 RRU PGND Cable........................................................................................................................................................173.3 RRU Power Cable........................................................................................................................................................183.4 RRU Alarm Cable........................................................................................................................................................193.5 CPRI Fiber Optic Cable................................................................................................................................................203.6 RRU RF Jumper...........................................................................................................................................................243.7 RRU AISG Multi-Wire Cable......................................................................................................................................253.8 RRU AISG Extension Cable........................................................................................................................................264 RF Cable Connections for the RRU3832&RRU3632.............................................................285 RRU Auxiliary Devices..............................................................................................................305.1 IFS06............................................................................................................................................................................315.2 OCB..............................................................................................................................................................................32RRU3832&RRU3632Hardware Description ContentsIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.vi
1 Changes in RRU3832&RRU3632 HardwareDescriptionThis chapter describes the changes in RRU3832&RRU3632 Hardware Description.03 (2014-01-20)This is the third official release.Compared with issue 02 (2013-07-30), this issue includes the following new information:4 RF Cable Connections for the RRU3832&RRU3632.Compared with issue 02 (2013-07-30), this issue does not include any changes.Compared with issue 02 (2013-07-30), no information is deleted from this issue.02 (2013-07-30)This is the second official release.Compared with issue 01 (2013-04-28), this issue does not include any new information.Compared with issue 01 (2013-04-28), this issue includes the following changes:Topic Change Description2.4 RRU Ports Added a detailed description of the alarmport. Compared with issue 01 (2013-04-28), no information is deleted from this issue.01 (2013-04-28)This is the first official release.RRU3832&RRU3632Hardware Description 1 Changes in RRU3832&RRU3632 Hardware DescriptionIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.1
2 RRU IntroductionAbout This ChapterThis chapter describes the exterior and function of the RRU as well as the ports and indicatorson the RRU.2.1 RRU ExteriorThis section describes the exterior and dimensions of an RRU.2.2 RRU FunctionsThis section describes the main functions of the RRU.2.3 RRU Technical SpecificationsThis section describes technical specifications of an RRU, including supported modes, frequencybands, RF specifications, engineering specifications, and antenna capabilities.2.4 RRU PortsThis section describes ports on the RRU panels. An RRU has a bottom panel, cabling cavitypanel, and indicator panel.2.5 RRU IndicatorsThis section describes six indicators on an RRU. They indicate the running status.2.6 Optical ModulesAn optical module transmits optical signals between an optical port and a fiber optic cable.RRU3832&RRU3632Hardware Description 2 RRU IntroductionIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.2
2.1 RRU ExteriorThis section describes the exterior and dimensions of an RRU.Figure 2-1 shows an RRU.Figure 2-1 RRU exterior Figure 2-2 shows RRU dimensions.Figure 2-2 RRU dimensions 2.2 RRU FunctionsThis section describes the main functions of the RRU.The Remote Radio Unit (RRU) consists of the high-speed interface unit, signal processing unit,power amplifier, duplexer, extension ports, and power module. Figure 2-3 shows the functionstructure of the RRU.RRU3832&RRU3632Hardware Description 2 RRU IntroductionIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.3
Figure 2-3 Function structure of the RRU NOTEFor details about the extension ports, see 2.4 RRU Ports.The RRU performs the following functions:lReceives downlink baseband data from the BBU and sends uplink baseband data to theBBU.lReceives RF signals from the antenna system, down-converts the signals to intermediatefrequency (IF) signals, amplifies the IF signals, and performs analog-to-digital conversion.The transmit (TX) channel filters downlink signals, performs digital-to-analog conversion,and up-converts RF signals to the TX band.lMultiplexes receive (RX) and TX signals on the RF channel, which enables these signalsto share the same antenna path. It also filters the RX and TX signals.lProvides a built-in Bias Tee (BT). The built-in BT couples RF signals and OOK signalsand transmits them through the TX/RX port A. The built-in BT also supplies power to thetower mounted amplifier (TMA).lThe RRU can be powered by the AC/DC power module. In this case, this RRU is calledAC RRU. For details about the AC/DC power module, see the AC/DC Power Module UserGuide or OPM15M User Guide.2.3 RRU Technical SpecificationsThis section describes technical specifications of an RRU, including supported modes, frequencybands, RF specifications, engineering specifications, and antenna capabilities.For details about technical specifications of an RRU, see section "Technical Specifications ofRRUs" in the 3900 Series Base Station Technical Description.RRU3832&RRU3632Hardware Description 2 RRU IntroductionIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.4
2.4 RRU PortsThis section describes ports on the RRU panels. An RRU has a bottom panel, cabling cavitypanel, and indicator panel.Figure 2-4 shows the ports on the RRU panels.Figure 2-4 Ports on the RRU panels Table 2-1 describes ports and indicators on the RRU panels.Table 2-1 Ports and indicators on the RRU panelsItem Silkscreen Remarks(1) Ports in the cablingcavityRTN(+) Power supply socketNEG(-)CPRI0 Optical/electrical port 0CPRI1 Optical/electrical port 1RRU3832&RRU3632Hardware Description 2 RRU IntroductionIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.5
Item Silkscreen Remarks(2) Ports at the bottom ANT_TX/RXA TX/RX port A, supporting RET signaltransmissionANT_RXC RX port CANT_RXD Port RX port DANT_TX/RXB TX/RX port BEXT_ALM Alarm monitoring port used for monitoringone RS485 signal and two dry contact signalsRET Communication port for the RET antenna,supporting RET signal transmission(3) Indicators RUN See 2.5 RRU Indicators.ALMACTVSWRCPRI0CPRI1 NOTElThe port for transmitting RET signals is determined by the software.lFor the RRU3832, CPRI0 is connected to the BBU or an upper-level RRU and CPRI1 is connected toa lower-level RRU.lFor the RRU3632, CPRI0 is connected to the BBU and the CPRI1 is reserved.Table 2-2 describes how to use RF ports for RRU3832.Table 2-2 Usage of RF ports for RRU3832Product Version TX/RXChannelNumberof UsedRF PortsUsage RemarksDBS3900 WCDMAV200R013C001 x 2T2R 2 ANT_TX/RXA andANT_TX/RXB are usedtogether.A singlesectorRRU3832&RRU3632Hardware Description 2 RRU IntroductionIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.6
Product Version TX/RXChannelNumberof UsedRF PortsUsage RemarksDBS3900 WCDMAV200R014C00 andlater versions1 x 1T2R 2 It is recommended thatANT_TX/RXA andANT_RXC be usedtogether.You can also use ANT_TX/RXB and ANT_RXDtogether.A singlesector1 x 2T2R 2 ANT_TX/RXA andANT_TX/RXB are usedtogether.A singlesector1 x 2T4R 4 ANT_TX/RXA, ANT_TX/RXB, ANT_RXC, andANT_RXD are usedtogether for one sector, withANT_TX/RXA andANT_RXC combined andANT_TX/RXB andANT_RXD combined.A singlesector2 x 1T2R 4 ANT_TX/RXA andANT_RXC are used for onesector; ANT_TX/RXB andANT_RXD are used for theother sector.Two sectorsDBS3900 LTEV100R006C00 andlater versions1 x 2T2R 2 ANT_TX/RXA andANT_TX/RXB are usedtogether.A singlesector1 x 2T4R 4 ANT_TX/RXA, ANT_TX/RXB, ANT_RXC, andANT_RXD are usedtogether for one sector, withANT_TX/RXA andANT_RXC combined andANT_TX/RXB andANT_RXD combined.A singlesector Table 2-3 describes how to use RF ports for RRU3632.RRU3832&RRU3632Hardware Description 2 RRU IntroductionIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.7
Table 2-3 Usage of RF ports for RRU3632Product Version TX/RXChannelNumberof UsedRF PortsUsage RemarksDBS3900 LTEV100R006C00 andlater versions1 x 2T2R 2 ANT_TX/RXA andANT_TX/RXB are usedtogether.A singlesector1 x 2T4R 4 ANT_TX/RXA, ANT_TX/RXB, ANT_RXC, andANT_RXD are usedtogether for one sector, withANT_TX/RXA andANT_RXC combined andANT_TX/RXB andANT_RXD combined.A singlesector Figure 2-5 shows the recommended usage of the RF ports on an RRU3832 used for DBS3900WCDMA V200R013C00.Figure 2-5 Recommended usage of the RF ports on an RRU3832 used for DBS3900 WCDMAV200R013C00 Figure 2-6 shows the recommended usage of the RF ports on an RRU3832 used for DBS3900WCDMA V200R014C00 and later versions.RRU3832&RRU3632Hardware Description 2 RRU IntroductionIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.8
Figure 2-6 Recommended usage of the RF ports on an RRU3832 used for DBS3900 WCDMAV200R014C00 and later versions Figure 2-7 shows the recommended usage of the RF ports on RRU3832 and RRU3632 used forDBS3900 LTE V100R006C00 and later versions.RRU3832&RRU3632Hardware Description 2 RRU IntroductionIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.9
Figure 2-7 Recommended usage of the RF ports on RRU3832 and RRU3632 used for DBS3900LTE V100R006C00 and later versions 2.5 RRU IndicatorsThis section describes six indicators on an RRU. They indicate the running status.For detailed positions of RRU indicators, see 2.4 RRU Ports.Table 2-4 describes RRU indicators.Table 2-4 RRU indicatorsIndicator Color Status MeaningRUN Green Steady on There is power supply, but the module isfaulty.Steady off There is no power supply, or the module isfaulty.Blinking (on for1s and off for 1s)The board is functioning properly.Blinking (on for0.125s and off for0.125s)Software is being loaded to the module, orthe module is not started.ALM Red Steady on Alarms are generated, and the module mustbe replaced.RRU3832&RRU3632Hardware Description 2 RRU IntroductionIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.10
Indicator Color Status MeaningBlinking (on for1s and off for 1s)Alarms are generated. The alarms may becaused by the faults on the related boards orports. Therefore, you need to locate the faultbefore deciding whether to replace themodule.Steady off No alarm is generated.ACT Green Steady on The module is running properly with TXchannels enabled or the software is beingloaded without RRU running.Blinking (on for1s and off for 1s)The module is running properly with TXchannels disabled.VSWR Red Steady off No Voltage Standing Wave Ratio (VSWR)alarm is generated.Blinking (on for1s and off for 1s)VSWR alarms are generated on theANT_TX/RXB port.Steady on VSWR alarms are generated on theANT_TX/RXA port.Blinking (on for0.125s and off for0.125s)VSWR alarms are generated on theANT_TX/RXA and ANT_TX/RXB ports.CPRI0 Red orgreenSteady green The CPRI link is functioning properly.Steady red An optical module fails to transmit or receivesignals because the optical module is faultyor the fiber optic cable is broken.Blinking red (onfor 1s and off for1s)The CPRI link is out of lock because of afailure in clock lock between two modes ormismatched data rates over CPRI ports.Steady off The optical module cannot be detected, or theoptical module is powered off.CPRI1 Red orgreenSteady green The CPRI link is functioning properly.Steady red An optical module fails to transmit or receivesignals because the optical module is faultyor the fiber optic cable is broken.Blinking red (onfor 1s and off for1s)The CPRI link is out of lock because of afailure in clock lock between two modes ormismatched data rates over CPRI ports.Steady off The optical module cannot be detected, or theoptical module is powered off.RRU3832&RRU3632Hardware Description 2 RRU IntroductionIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.11
2.6 Optical ModulesAn optical module transmits optical signals between an optical port and a fiber optic cable.NOTEThe exteriors of an optical module and the label on an optical module in this section are for reference only.The actual exteriors may be different.ExteriorThe following figure shows the exterior of an optical module.Figure 2-8 Exterior of an optical module Label on an optical moduleThere is a label on each optical module, which provides information such as the rate, wavelength,and transmission mode, as shown in the following figure.Figure 2-9 Label on an optical module(1) Rate (2) Wavelength (3) Transmission mode Optical Module TypeOptical modules can be divided into single- and multimode optical modules, which can bedistinguished as follows:RRU3832&RRU3632Hardware Description 2 RRU IntroductionIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.12
lThe puller of a single-mode optical module is blue and the puller of a multimode opticalmodule is black or gray.lThe transmission mode is displayed as "SM" on the label of a single-mode optical moduleand "MM" on the label of a multimode optical module.RRU3832&RRU3632Hardware Description 2 RRU IntroductionIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.13
3 RRU CablesAbout This ChapterThis chapter describes RRU cables.3.1 RRU Cable ListThis section describes RRU cable connections.3.2 RRU PGND CableAn RRU PGND cable connects an RRU and a ground bar, ensuring the proper grounding of theRRU. The maximum length of an RRU PGND cable is 8 m (26.25 ft).3.3 RRU Power CableThe RRU power cable is a -48 V DC shielded cable. It feeds -48 V DC power to an RRU. Themaximum length of an RRU power cable delivered with RRUs is 50 m (164.04 ft) by default.3.4 RRU Alarm CableThe RRU alarm cable, a shielded straight-through cable, transmits alarm signals from an externaldevice to an RRU so that the base station monitors the operating status of external devices. TheRRU alarm cable is 5 m (16.4 ft).3.5 CPRI Fiber Optic CableCPRI fiber optic cables are classified into multimode fiber optic cables and single-mode fiberoptic cables. They transmit CPRI signals.3.6 RRU RF JumperThe 1/2" RRU RF jumper transmits and receives RF signals between an RRU and an antenna.A fixed-length RF jumper used by an RRU is 2 m (6.56 ft), 3 m (9.84 ft), 4 m (13.12 ft), 6 m(19.68 ft), or 10 m (32.81 ft). A variable-length RF jumper used by an RRU has a maximumlength of 10 m (32.81 ft).3.7 RRU AISG Multi-Wire CableAn RRU AISG multi-wire cable connects an RRU and an RCU to transmit control signals froma base station to an RET antenna. When the RRU is connected to the RET antenna, an AISGmulti-wire cable transmits RS485 signals. The length of the AISG multi-wire cable is 5 m (16.40ft).3.8 RRU AISG Extension CableRRU3832&RRU3632Hardware Description 3 RRU CablesIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.14
When the distance between an RRU and an RCU is longer than 5 m (16.4 ft), an AISG multi-wire cable is not long enough to connect the RRU and the RCU. In this case, an AISG extensioncable is used to extend the AISG multi-wire cable for transmitting RS485 signals. The length ofthe AISG extension cable is 15 m (49.21 ft).RRU3832&RRU3632Hardware Description 3 RRU CablesIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.15
3.1 RRU Cable ListThis section describes RRU cable connections.Table 3-1 lists RRU cables.Table 3-1 RRU cablesCable One End The Other EndConnector InstallationPositionConnector InstallationPosition3.2 RRUPGNDCableOT terminal (M6,16 mm2 or 0.025in.2)Groundterminal on theRRUOT terminal(M8, 16 mm2 or0.025 in.2)Ground terminalon the ground bar3.3 RRUPower CableTool-less femaleconnector(pressfit type)NEG(-) andRTN(+) portson the RRUDepending on thepower supplyequipmentExternal powerequipment3.4 RRUAlarm CableDB15 waterproofmale connectorEXT_ALMport on theRRUCord endterminalExternal alarmdevice3.5 CPRIFiber OpticCable(RRU3832)DLC connector CPRI0 port onthe RRUDLC connector CPRI port on aboard in the BBUor CPRI1 port onthe upper-levelRRUCPRI1 port onthe RRUCPRI0 port on thelower-level RRU3.5 CPRIFiber OpticCable(RRU3632)DLC connector CPRI0 port onthe RRUDLC connector CPRI port on aboard in the BBU3.6 RRU RFJumperDIN maleconnectorANT_TX/RXA,ANT_TX/RXB,ANT_RXC, orANT_RXDport on theRRUDIN maleconnectorAntenna systemRRU3832&RRU3632Hardware Description 3 RRU CablesIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.16
Cable One End The Other EndConnector InstallationPositionConnector InstallationPosition3.7 RRUAISG Multi-Wire CableDB9 waterproofmale connectorRET port onthe RRUStandard AISGfemale connectorStandard AISGmale connectoron the RCU or onthe AISGextension cable3.8 RRUAISGExtensionCableStandard AISGmale connectorStandard AISGfemaleconnector onthe AISGmulti-wirecableStandard AISGfemale connectorStandard AISGmale connectoron the RCU 3.2 RRU PGND CableAn RRU PGND cable connects an RRU and a ground bar, ensuring the proper grounding of theRRU. The maximum length of an RRU PGND cable is 8 m (26.25 ft).ExteriorA PGND cable is green or green and yellow with a cross-sectional area of 16 mm2 (0.025 in.2).An OT terminal is installed at each end of the cable. Figure 3-1 shows a PGND cable.Figure 3-1 PGND cable(1) OT terminal (M6, 16 mm2 or 0.025 in.2) (2) OT terminal (M8, 16 mm2 or 0.025 in.2) NOTElIf the customer prepares the PGND cable, a copper-core cable with a cross-sectional area of 16 mm2(0.025 in.2) or larger is recommended.lOne OT terminal must be added to each end of the PGND cable onsite.lYou can determine the color of the cable and whether to use corresponding two-hole OT terminalsbased on local regulations.Figure 3-2 shows a two-hole OT terminal.RRU3832&RRU3632Hardware Description 3 RRU CablesIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.17
Figure 3-2 Two-hole OT terminal 3.3 RRU Power CableThe RRU power cable is a -48 V DC shielded cable. It feeds -48 V DC power to an RRU. Themaximum length of an RRU power cable delivered with RRUs is 50 m (164.04 ft) by default.NOTElThe maximum length of power supply that an RRU power cable supports is 150 m (492.12 ft). ContactHuawei engineers when an RRU power cable greater than 50 m (164.04 ft) is required.lIf a power device provided by the customer is used, the recommended specification of the circuit breakeron this power device is 15 A to 30 A.ExteriorThere are four types of RRU power cables in terms of cross-sectional areas: 3.3 mm2 (0.005 in.2) (12 AWG) and 5.3 mm2 (0.008 in.2) (10 AWG) complying with North American standards,and 4 mm2 (0.006 in.2) and 6 mm2 (0.009 in.2) complying with European standards.A tool-less female connector (pressfit type) needs to be added to one end of the RRU powercable and a corresponding terminal needs to be added to the other end based on the requirementsof the connector on the external power device, as shown in Figure 3-3.Figure 3-3 RRU power cable(1) -48 V DC power cable (2) Shield layer (3) Tool-less female connector(pressfit type) Table 3-2 lists the specifications of an RRU power cable.RRU3832&RRU3632Hardware Description 3 RRU CablesIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.18
Table 3-2 Specifications of an RRU power cableCable Wire Wire Color in MostRegionsWire Color in Other RegionsNorthAmericanStandardEuropeanStandardUKRRUpowercableRTN(+) Black Brown BlueNEG(-) Blue Blue Gray 3.4 RRU Alarm CableThe RRU alarm cable, a shielded straight-through cable, transmits alarm signals from an externaldevice to an RRU so that the base station monitors the operating status of external devices. TheRRU alarm cable is 5 m (16.4 ft).ExteriorAn alarm cable has a DB15 waterproof male connector at one end and eight cord end terminalsat the other end, as shown in Figure 3-4.Figure 3-4 Alarm cable(1) DB15 waterproof male connector (2) Cord end terminal Pin AssignmentTable 3-3 describes the pin assignment for the wires of an RRU alarm cable.RRU3832&RRU3632Hardware Description 3 RRU CablesIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.19
Table 3-3 Pin assignment for the wires of an RRU alarm cableRRUAlarmPortPin of theWaterproofedDB15MaleConnectorColor Type Cord EndTerminalDescriptionDrycontactX1.2 White andblueTwistedpairX2 SWITCH_INPUT0+X1.3 Blue X3 SWITCH_INPUT0-(GND)X1.6 White andorangeTwistedpairX4 SWITCH_INPUT1+X1.7 Orange X5 SWITCH_INPUT1-(GND)RS485 X1.10 White andgreenTwistedpairX6 APM RX-X1.11 Green X7 APM RX+X1.13 White andbrownTwistedpairX8 APM TX-X1.14 Brown X9 APM TX+ 3.5 CPRI Fiber Optic CableCPRI fiber optic cables are classified into multimode fiber optic cables and single-mode fiberoptic cables. They transmit CPRI signals.Multimode fiber optic cables connect the BBU and RRU or interconnect two RRUs. Themaximum length of the multimode fiber optic cable between the BBU and RRU is 150 m (492.12ft) and the multimode fiber optic cable between two RRUs has a fixed length of 10 m (32.81 ft).A single-mode fiber optic cable consists of the single-mode pigtail and trunk single-mode fiberoptic cable, and the single-mode pigtail and trunk single-mode fiber optic cable areinterconnected using the ODF. The maximum length of the single-mode pigtail is 20 m (65.62ft) on BBU side and 70 m (229.66 ft) on RRU side.RRU3832&RRU3632Hardware Description 3 RRU CablesIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.20
NOTElThe ODF and trunk single-mode fiber optic cable are provided by the customer and must comply withthe ITU-T G.652 standard.lThe ODF is an outdoor transfer box for fiber optic cables, which interconnects the single-mode pigtailand trunk single-mode fiber optic cable.lA multimode fiber optic cable and a single-mode fiber optic cable are connected to a multimode opticalmodule and a single-mode optical module, respectively.ExteriorMultimode fiber optic cable: The multimode fiber optic cable has a DLC connector at each end,as shown in Figure 3-5.Figure 3-5 Multimode fiber optic cable(1) DLC connector (2) Breakout cable (3) Label on the breakout cable NOTElWhen a multimode fiber optic cable connects a BBU and an RRU, the breakout cable on the BBU sideis 0.34 m (1.12 ft) and the breakout cable on the RRU side is 0.03 m (0.098 ft).lWhen a multimode fiber optic cable connects two RRUs, the breakout cable on both sides is 0.03 m(0.098 ft).Figure 3-6 shows the connection of the multimode fiber optic cable between a BBU and anRRU.Figure 3-6 Connection of the multimode fiber optic cable between a BBU and an RRU(1) Multimode fiber optic cable between a BBU and an RRURRU3832&RRU3632Hardware Description 3 RRU CablesIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.21
Single-mode pigtail: The single-mode pigtail has a DLC connector at one end and an FC, LC,or SC connector at the other end, as shown in Figure 3-7.Figure 3-7 Single-mode pigtail(1) DLC connector (2) Breakoutcable(3) Label on thebreakout cable(4) FC connector (5) LC connector (6) SC connector NOTElWhen a single-mode pigtail connects a BBU and an ODF, the breakout cables on the BBU side andODF side are 0.34 m (1.12 ft) and 0.8 m (2.62 ft), respectively.lWhen a single-mode pigtail connects an RRU and an ODF, the breakout cables on the RRU side andODF side are 0.03 m (0.098 ft) and 0.8 m (2.62 ft), respectively.Figure 3-8 shows the connection of the single-mode pigtail.RRU3832&RRU3632Hardware Description 3 RRU CablesIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.22
Figure 3-8 Connection of the single-mode pigtail(1) Single-mode pigtail between a BBU and an ODF (2) Single-mode pigtail between an RRU and an ODFSelection PrinciplesThe following table describes the principles for selecting CPRI fiber optic cables.Table 3-4 Principles for selecting CPRI fiber optic cablesRemoteDistanceSelection Principle RemarksLess than orequal to 100 m(328.08 ft)Multimode fiber optic cable Connects the BBU and RRUWhen it connects two RRUs, the distancebetween the two RRUs must be equal to orless than 10 m (32.81 ft).Greater than100 m (328.08ft) and equal toor less than150 m (492.12ft)Multimode fiber optic cable Connects the BBU and RRURecommended: single-modefiber optic cable (single-modepigtail and trunk single-modefiber optic cable)The single-mode pigtail at the RRU or BBUside is connected to the trunk single-modefiber optic cable using the ODF.Greater than150 m (492.12ft)Single-mode fiber optic cable(single-mode pigtail and trunksingle-mode fiber optic cable) Pin AssignmentTable 3-5 describes the labels on and recommended connections for the breakout cables of aCPRI fiber optic cable.RRU3832&RRU3632Hardware Description 3 RRU CablesIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.23
Table 3-5 Labels on and recommended connections for the breakout cables of a CPRI fiber opticcableLabel Installation PositionMultimode FiberOptic CableBetween a BBUand an RRUMultimode FiberOptic CableBetween TwoRRUsSingle-Mode Pigtail1A CPRI RX port on theRRUCPRI RX port onRRU 1RX port on the BBU orCPRI RX port on theRRU1B CPRI TX port on theRRUCPRI TX port onRRU 1TX port on the BBU orCPRI TX port on theRRU2A TX port on the BBU CPRI TX port onRRU 0ODF2B RX port on the BBU CPRI RX port onRRU 0ODF 3.6 RRU RF JumperThe 1/2" RRU RF jumper transmits and receives RF signals between an RRU and an antenna.A fixed-length RF jumper used by an RRU is 2 m (6.56 ft), 3 m (9.84 ft), 4 m (13.12 ft), 6 m(19.68 ft), or 10 m (32.81 ft). A variable-length RF jumper used by an RRU has a maximumlength of 10 m (32.81 ft).NOTElWhen the distance between an RRU and an antenna is less than 10 m (32.81 ft), one end of the RF jumperis connected to the ANT-TX/RXA or ANT-TX/RXB port at the bottom of the RRU, and the other end isconnected to the antenna.lWhen the distance between an RRU and an antenna is greater than 10 m (32.81 ft), one end of the RF jumperis connected to a feeder, and the other end is connected to the antenna.lIf the customer prepares the RF jumper, the length of the RF jumper should be as short as possible and notexceed 2 m (6.56 ft.).ExteriorAn RF jumper has a DIN male connector at one end and a customized connector at the otherend.Figure 3-9 shows an RF jumper with a DIN male connector at each end.RRU3832&RRU3632Hardware Description 3 RRU CablesIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.24
Figure 3-9 RF jumper(1) DIN male connector 3.7 RRU AISG Multi-Wire CableAn RRU AISG multi-wire cable connects an RRU and an RCU to transmit control signals froma base station to an RET antenna. When the RRU is connected to the RET antenna, an AISGmulti-wire cable transmits RS485 signals. The length of the AISG multi-wire cable is 5 m (16.40ft).NOTEAn RCU is a driving motor used for the phase shifter in the RET antenna. It receives control commands from abase station and runs the commands to drive the stepper motor. Using a gear, the stepper motor drives theadjustable phase shifter in the antenna and changes the downtilt angle.ExteriorAn AISG multi-wire cable has a waterproofed DB9 male connector at one end and a standardAISG female connector at the other end, as shown in Figure 3-10.Figure 3-10 AISG multi-wire cable(1) Waterproofed DB9 male connector (2) Standard AISG female connector Pin AssignmentTable 3-6 describes the pin assignment for the wires of an AISG multi-wire cable.RRU3832&RRU3632Hardware Description 3 RRU CablesIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.25
Table 3-6 Pin assignment for the wires of an AISG multi-wire cableX1 End (Pin of theWaterproofedDB9 MaleConnector)X2 End (Pin of theStandard AISGFemale Connector)Color Type DescriptionX1.1 X2.1White andblue Twistedpair +12 VBlueX1.3 X2.3 White andorange TwistedpairRS485 BX1.5 X2.5 Orange RS485 AX1.4 X2.4 White andgreen- GNDX1.9 and X1.4 areinterconnected.- - - GND- X2.1 and X2.6 areinterconnected.- - +12 V- X2.4 and X2.7 areinterconnected.- - GND 3.8 RRU AISG Extension CableWhen the distance between an RRU and an RCU is longer than 5 m (16.4 ft), an AISG multi-wire cable is not long enough to connect the RRU and the RCU. In this case, an AISG extensioncable is used to extend the AISG multi-wire cable for transmitting RS485 signals. The length ofthe AISG extension cable is 15 m (49.21 ft).ExteriorAn AISG multi-wire cable has a standard AISG male connector at one end and a standard AISGfemale connector at the other end, as shown in Figure 3-11.Figure 3-11 AISG extension cable(1) Standard AISG male connector (2) Standard AISG female connectorRRU3832&RRU3632Hardware Description 3 RRU CablesIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.26
Pin AssignmentTable 3-7 describes the pin assignment for the wires of an AISG extension cable.Table 3-7 Pin assignment for the wires of an AISG extension cableX1 End (Pinof theStandardAISG MaleConnector)X2 End (Pinof theStandardAISGFemaleConnector)Color Type DescriptionX1.1 X2.1 White and blue Twisted pair +12 VBlueX1.7 X2.7 White and orange Twisted pair DC ReturnOrangeX1.3 X2.3 White and green Twisted pair RS485 BX1.5 X2.5 Green RS485 AX1.6 X2.6 White and brown Twisted pair +24 VBrownRRU3832&RRU3632Hardware Description 3 RRU CablesIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.27
4 RF Cable Connections for theRRU3832&RRU3632RF cable connections for the RRU vary depending on the configurations of the RRU and antenna.Description of RF Cable ConnectionsThis section describes the RF cable connections for the RRU serving a single sector. Thefollowing table lists the RF cable connections for the RRU.Table 4-1 RF cable connections for the RRURRU Model Specifications of aSingle RRUScenario Illustration ofCableConnectionsRRU3832 andRRU3632For details, see section"Typical PowerConfiguration for RRUModules" in chapter"ConfigurationReference" in 3900Series Base StationInitial ConfigurationGuide.2T2R See illustration 1 inFigure 4-1.1T2R+1T2R See illustration 2 inFigure 4-1.2T4R See illustration 3 inFigure 4-1. RRU3832&RRU3632Hardware Description 4 RF Cable Connections for the RRU3832&RRU3632Issue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.28
Illustration of Cable ConnectionsFigure 4-1 RF cable connections for the RRURRU3832&RRU3632Hardware Description 4 RF Cable Connections for the RRU3832&RRU3632Issue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.29
5 RRU Auxiliary DevicesAbout This ChapterThis chapter describes RRU auxiliary devices.5.1 IFS06An Indoor Floor installation Support (IFS06) is used for installing indoor RRUs.5.2 OCBAn Outdoor Cable Conversion Box (OCB) interconnects cables of different core diameters.Power cables shipped with RRUs cannot support long-distance power supply. Therefore, whenpower supply is far from the equipment, cables with large core diameters are used, and an OCBconnects these cables and RRU power cables.RRU3832&RRU3632Hardware Description 5 RRU Auxiliary DevicesIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.30
5.1 IFS06An Indoor Floor installation Support (IFS06) is used for installing indoor RRUs.ExteriorFigure 5-1 shows an IFS06.Figure 5-1 IFS06 (1) Cable tray (2) Ground bar 2 (3) Rear foot (4) Front foot(5) Adjustable beam (6) Ground bar 1 (7) Main frame -FunctionlIt can be installed on the ground.lThe upper and lower adjustable beams on an IFS06 can be moved up and down to fit forheights of RRUs.lRRUs can be installed on an IFS06 only when the ambient temperature is higher than orequal to the lowest working temperature of the RRU and at least 5°C (41°F) lower than thehighest working temperature of the RRU. In this scenario, the IFS06 supports at least threeRRUs. When the ambient temperature is higher than or equal to the lowest workingRRU3832&RRU3632Hardware Description 5 RRU Auxiliary DevicesIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.31
temperature of the RRU and at least 10°C (50°F) lower than the highest workingtemperature of the RRU, the IFS06 supports a maximum of six RRUs.NOTEFor details about the operating temperature of the RRU, see section "Technical Specifications ofRRUs" in 3900 Series Base Station Technical Description.SpecificationsTable 5-1 describes IFS06 specifications.Table 5-1 IFS06 specificationsItem SpecificationDimensions (H x W x D) 1730 mm (79 in.) x 600 mm (23.62 in.) x 600 mm (23.62 in.)Weight 45 kg (99.23 lb) 5.2 OCBAn Outdoor Cable Conversion Box (OCB) interconnects cables of different core diameters.Power cables shipped with RRUs cannot support long-distance power supply. Therefore, whenpower supply is far from the equipment, cables with large core diameters are used, and an OCBconnects these cables and RRU power cables.Application Scenario of an OCBFigure 5-2 shows the application scenario of an OCB.Figure 5-2 Application scenario of an OCB RRU3832&RRU3632Hardware Description 5 RRU Auxiliary DevicesIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.32
For details about the structure, functions, installation, and maintenance of an OCB, see the OCBUser Guide or OCB–01M User Guide.RRU3832&RRU3632Hardware Description 5 RRU Auxiliary DevicesIssue 03 (2014-01-20) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.33

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