BTS3900 (Ver.B)Hardware DescriptionIssue 13Date 2014-06-26HUAWEI 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 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.iAbout This DocumentPurposeThis document provides reference for planning and deploying the BTS3900 (Ver.B) (referredto as BTS3900). It describes the configuration, functions, and specifications of the componentsin the BTS3900 cabinet, and details such as cable types, cable connections, and connectorspecifications.Product VersionsThe following table lists the product versions related to this document.Product Name Product VersionBTS3900 V100R007C00BTS3900 WCDMA V200R014C00BTS3900 GSM V100R014C00BTS3900 LTE V100R005C00 Intended AudienceThis document is intended for:l System engineersl Base station installation engineersl Site maintenance engineersOrganization1 Changes in BTS3900 (Ver.B) Hardware DescriptionThis chapter describes the changes in the BTS3900 (Ver.B) Hardware Description.2 BTS3900 CabinetBTS3900 (Ver.B)Hardware Description About This DocumentIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.iiThis chapter describes the exteriors, boards, modules, and configurations of the BTS3900cabinet, providing reference for planning and deploying the BTS3900.3 Modules in the BTS3900 CabinetThis chapter describes the modules in the BTS3900 cabinet such as the RFU, RRU, BBU3900,and EMU.4 Power Distribution Scheme and Power Devices of the BTS3900 CabinetThis chapter describes configurations of upper-level circuit breakers and power cables, powerdistribution scheme, and components in the power system of the BTS3900 cabinet.5 Monitoring Scheme and Monitoring Devices of the BTS3900 CabinetThe BTS3900 monitoring system monitors all boards and components in the cabinet. If anyboard or component is faulty, an alarm is reported automatically. The alarm signals are collectedboth inside and outside the cabinet by the UPEU, UEIU, or EMU to ensure that the entire basestation can be monitored.6 Components in the BTS3900 CabinetThis section describes the components in the BTS3900.7 BTS3900 CablesThe BTS3900 cables consist of the PGND cable, power cable, transmission cable, CPRI cable,signal cable, and RF cable.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.BTS3900 (Ver.B)Hardware Description About This DocumentIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.iiiSymbol DescriptionCalls attention to important information, best practices andtips.NOTE is used to address information not related to personalinjury, equipment damage, and environment deterioration. General ConventionsThe 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 ConventionsBTS3900 (Ver.B)Hardware Description About This DocumentIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.ivThe 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. 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.BTS3900 (Ver.B)Hardware Description About This DocumentIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.vContentsAbout This Document.....................................................................................................................ii1 Changes in BTS3900 (Ver.B) Hardware Description..............................................................12 BTS3900 Cabinet............................................................................................................................92.1 Exterior of the BTS3900 Cabinet.................................................................................................................................102.2 Configurations of the BTS3900 Cabinet......................................................................................................................102.3 Application Scenario of the BTS3900 Cabinet............................................................................................................132.3.1 Application Scenario of the BTS3900 Cabinet (Only RFUs Configured)................................................................142.3.2 Application Scenario of the BTS3900 Cabinet (RRUs and RFUs Configured)........................................................172.4 BTS3900 Engineering Specifications...........................................................................................................................193 Modules in the BTS3900 Cabinet.............................................................................................213.1 RFU..............................................................................................................................................................................223.1.1 GRFU.........................................................................................................................................................................223.1.2 DRFU.........................................................................................................................................................................263.1.3 WRFU........................................................................................................................................................................293.1.4 WRFUa Description..................................................................................................................................................333.1.5 LRFU.........................................................................................................................................................................373.1.6 MRFU........................................................................................................................................................................413.2 RRU..............................................................................................................................................................................443.3 BBU3900......................................................................................................................................................................453.3.1 BBU3900...................................................................................................................................................................453.3.2 BBU3900 Functions..................................................................................................................................................463.3.3 BBU3900 Technical Specifications...........................................................................................................................473.3.4 BBU3900 Slot Assignment.......................................................................................................................................473.3.5 GTMU.......................................................................................................................................................................753.3.6 WMPT.......................................................................................................................................................................833.3.7 UMPT........................................................................................................................................................................893.3.8 LMPT.........................................................................................................................................................................983.3.9 WBBP......................................................................................................................................................................1033.3.10 LBBP.....................................................................................................................................................................1093.3.11 FAN.......................................................................................................................................................................1183.3.12 UPEU.....................................................................................................................................................................120BTS3900 (Ver.B)Hardware Description ContentsIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.vi3.3.13 UEIU......................................................................................................................................................................1243.3.14 UTRP.....................................................................................................................................................................1253.3.15 USCU.....................................................................................................................................................................1353.3.16 UBRI......................................................................................................................................................................1383.3.17 UCIU.....................................................................................................................................................................1403.4 GATM........................................................................................................................................................................1433.5 EMU...........................................................................................................................................................................1444 Power Distribution Scheme and Power Devices of the BTS3900 Cabinet.....................1464.1 Configurations of the Upper-Level Circuit Breakers and Power Cables...................................................................1474.2 Power Distribution Schemes of the Cabinet...............................................................................................................1514.3 Power Equipment (DC/DC)........................................................................................................................................1544.3.1 Components of the Power Equipment (DC/DC).....................................................................................................1544.3.2 PSU (DC/DC)..........................................................................................................................................................1544.3.3 Power Subrack (DC/DC).........................................................................................................................................1564.4 Power Equipment (AC/DC)........................................................................................................................................1574.4.1 Components of the Power Equipment (AC/DC).....................................................................................................1574.4.2 PMU.........................................................................................................................................................................1584.4.3 PSU (AC/DC)..........................................................................................................................................................1614.4.4 Power Subrack (AC/DC).........................................................................................................................................1634.5 DCDU-01....................................................................................................................................................................1644.6 DCDU-03B.................................................................................................................................................................1665 Monitoring Scheme and Monitoring Devices of the BTS3900 Cabinet..........................1695.1 Monitoring Principles of the Cabinet.........................................................................................................................1705.2 Customized Alarm Inputs...........................................................................................................................................1725.3 Monitoring Boards of the BTS3900...........................................................................................................................1746 Components in the BTS3900 Cabinet....................................................................................1756.1 Fan Assembly.............................................................................................................................................................1766.2 ELU............................................................................................................................................................................1786.3 PS4890 Cabinet..........................................................................................................................................................1787 BTS3900 Cables..........................................................................................................................1817.1 List of BTS3900 Cables.............................................................................................................................................1837.2 Cable Connections......................................................................................................................................................1907.2.1 Power Cable Connections........................................................................................................................................1907.2.2 Transmission Cable Connections............................................................................................................................1937.2.3 CPRI Cable Connections.........................................................................................................................................2067.2.4 RF Cable Connections.............................................................................................................................................2217.2.5 Inter-BBU Signal Cable Connections......................................................................................................................2377.2.6 Signal Cable Connections........................................................................................................................................2387.3 BTS3900 Power Cable...............................................................................................................................................2427.3.1 Input Power Cable for the Cabinet..........................................................................................................................242BTS3900 (Ver.B)Hardware Description ContentsIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.vii7.3.2 Power Cable for the DCDU-01...............................................................................................................................2447.3.3 DCDU-03B Power Cable........................................................................................................................................2457.3.4 Power Cable for the BBU........................................................................................................................................2467.3.5 Power Cable for the Fan Assembly.........................................................................................................................2477.3.6 Power Cable for the RFU........................................................................................................................................2477.3.7 RRU Power Cables..................................................................................................................................................2487.3.8 Power Cable for the GATM....................................................................................................................................2507.4 BTS3900 Transmission Cable....................................................................................................................................2517.4.1 E1/T1 Cable.............................................................................................................................................................2517.4.2 FE/GE Ethernet Cable.............................................................................................................................................2547.4.3 FE/GE Fiber Optic Cable........................................................................................................................................2557.4.4 Interconnection Cable Between the FE Electrical Ports..........................................................................................2567.4.5 Interconnection Cable Between FE Optical Ports...................................................................................................2577.5 BTS3900 Signal Cable...............................................................................................................................................2577.5.1 Monitoring Signal Cable for the PMU....................................................................................................................2577.5.2 In-Position Signal Cable for the PSU (DC/DC)......................................................................................................2587.5.3 Monitoring Signal Cable for the PSU (DC/DC)......................................................................................................2597.5.4 Fan Assembly Cascade Signal Cable......................................................................................................................2607.5.5 Monitoring Signal Cable for the Fan Assembly......................................................................................................2617.5.6 Monitoring Signal Cable for the EMU....................................................................................................................2627.5.7 Monitoring Signal Cable for the GATM.................................................................................................................2627.5.8 FMU-GATM Monitoring Signal Cable...................................................................................................................2637.5.9 RET Control Signal Cable.......................................................................................................................................2647.5.10 BBU interconnection signal cable.........................................................................................................................2657.5.11 BBU Alarm Cable.................................................................................................................................................2667.5.12 GPS Clock Signal Cable........................................................................................................................................2687.5.13 GPS Jumper...........................................................................................................................................................2687.5.14 Signal Cable for the ELU......................................................................................................................................2697.5.15 Adapter Used for Local Maintenance....................................................................................................................2707.5.16 Cable Between two Combined Base Stations........................................................................................................2707.6 BTS3900 RF Cable.....................................................................................................................................................2727.6.1 RF Jumper................................................................................................................................................................2727.6.2 Inter-RFU RF Signal Cable.....................................................................................................................................2737.7 CPRI Electrical Cable.................................................................................................................................................2737.8 CPRI Fiber Optic Cable..............................................................................................................................................2747.9 PGND Cables.............................................................................................................................................................2787.10 Equipotential Cable..................................................................................................................................................279BTS3900 (Ver.B)Hardware Description ContentsIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.viii1 Changes in BTS3900 (Ver.B) HardwareDescriptionThis chapter describes the changes in the BTS3900 (Ver.B) Hardware Description.13 (2014-06-26)This is the thirteenth commercial release.Compared with issue 12 (2014-02-24), no topic is added.Compared with issue 12 (2014-02-24), this issue incorporates the following changes:Topic Change Description3.3.7 UMPT Changed the signaling specifications of theboards in LTE FDD mode.3.3.8 LMPT3.3.10 LBBP Compared with issue 12 (2014-02-24), no topic is deleted.12 (2014-02-24)This is the twelfth commercial release.Compared with issue 11 (2013-11-28), this issue includes the following new information:l 7.5.8 FMU-GATM Monitoring Signal CableCompared with issue 11 (2013-11-28), this issue incorporates the following changes:BTS3900 (Ver.B)Hardware Description 1 Changes in BTS3900 (Ver.B) Hardware DescriptionIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.1Topic Change Description7.1 List of BTS3900 Cables l Added the information of GATM powercable, RET control signal cable, andFMU-GATM monitoring signal cable.l Added the installation positioninformation of RF jumper when GATM isconfigured. Compared with issue 11 (2013-11-28), no topic is deleted.11 (2013-11-28)This is the eleventh commercial release.Compared with issue 10 (2013-08-23), no topic is added or deleted.Compared with issue 10 (2013-08-23), this issue incorporates the following changes:Topic Change Description5.2 Customized Alarm Inputs Modified the configuration about the numberof customized alarm inputs for monitoringboards.3.3.6 WMPT Changed the description of the TST port.3.3.7 UMPT3.3.5 GTMU3.3.8 LMPT3.3.14 UTRP Added the UTRPa. 10 (2013-08-23)This is the tenth commercial release.Compared with issue 09 (2013-05-27), this issue includes the following new information:l 4.6 DCDU-03Bl 7.3.3 DCDU-03B Power Cablel 7.3.7 RRU Power Cablesl 7.5.9 RET Control Signal CableCompared with issue 09 (2013-05-27), this issue incorporates the following changes:BTS3900 (Ver.B)Hardware Description 1 Changes in BTS3900 (Ver.B) Hardware DescriptionIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.2Topic Change Descriptionl 4.1 Configurations of the Upper-LevelCircuit Breakers and Power Cablesl 4.2 Power Distribution Schemes of theCabinetAdded the information when a BTS3900 isconfigured with RFUs and RRUs. Compared with issue 09 (2013-05-27), no topic is deleted.09 (2013-05-27)This is the ninth commercial release.Compared with issue 08 (2013-02-20), no topic is added or deleted.Compared with issue 08 (2013-02-20), this issue incorporates the following changes:Topic Change Description2.3.2 Application Scenario of the BTS3900Cabinet (RRUs and RFUs Configured)Added restrictions on the boards in the basestations configured with RFUs and RRUs.2.4 BTS3900 Engineering Specifications Added the noise specifications of the cabinet.l 3.3.6 WMPTl 3.3.7 UMPTl 3.3.8 LMPTl 3.3.9 WBBPl 3.3.10 LBBPAdded specifications of these boards.7.8 CPRI Fiber Optic Cable Added information about the classification ofCPRI fiber optic cables and the principles forselecting CPRI fiber optic cables. 08 (2013-02-20)This is the eighth commercial release.Compared with issue 07 (2012-12-30), this issue includes the following new information:l 3.1.4 WRFUa Descriptionl RF Cable Connections for the WRFUaCompared with issue 07 (2012-12-30), no information is changed or deleted.07 (2012-12-30)This is the seventh commercial release.Compared with issue 06 (2012-11-10), no topic is added or deleted.BTS3900 (Ver.B)Hardware Description 1 Changes in BTS3900 (Ver.B) Hardware DescriptionIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.3Compared with issue 06 (2012-11-10), this issue incorporates the following changes:Content Change Description7.5.10 BBU interconnection signal cable Modified the exterior and length of the BBUinterconnection signal cable connectingWBBPf to WBBPf. 06 (2012-11-10)This is the sixth commercial release.Compared with issue 05 (2012-09-15), this issue includes the following new information:l 3.3.3 BBU3900 Technical Specificationsl RF Cable Connections for Mixed RFU ConfigurationCompared with issue 05 (2012-09-15), this issue incorporates the following changes:Content Change Description3.3.7 UMPT Changed the description of indicators on theUMPT.4.5 DCDU-01 Added the technical specifications ofDCDU-01.l 3.1.6 MRFUl 3.1.2 DRFUl 3.1.1 GRFUl 3.1.3 WRFUl 3.1.5 LRFUAdded the technical specifications of theRFUs. Compared with issue 05 (2012-09-15), no topic is deleted.05 (2012-09-15)This is the fifth commercial release.Compared with issue 04 (2012-08-05), no topic is added or deleted.Compared with issue 04 (2012-08-05), this issue incorporates the following changes:Topic Change Description7.6.1 RF Jumper Added the length of the cable.7.9 PGND Cables Changed the length of the cable. BTS3900 (Ver.B)Hardware Description 1 Changes in BTS3900 (Ver.B) Hardware DescriptionIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.404 (2012-08-05)This is the fourth commercial release.Compared with issue 03 (2012-06-29), no topic is added.Compared with issue 03 (2012-06-29), this issue incorporates the following changes:Topic Change Description3.3.5 GTMU Added the TRX specifications of the board.3.3.10 LBBP Added the information of combinedbandwidths.3.3.14 UTRP Deleted the UTRPb4 used in LTE mode.Transmission Cable Connections for aSingle-Mode Base Station Compared with issue 03 (2012-06-29), this issue deletes the following topics:l MRFU V3l RF Cable Connections for MRFU V303 (2012-06-29)This is the third commercial release.Compared with issue 02 (2012-06-20), no topic is added or deleted.Compared with issue 02 (2012-06-20), this issue incorporates the following changes:Topic Change Description3.3.15 USCU Added the information of the USCUb14 andUSCUb22.l 7.3.1 Input Power Cable for the Cabinetl 7.9 PGND Cablesl 7.4.1 E1/T1 Cablel 7.4.2 FE/GE Ethernet Cablel 7.4.3 FE/GE Fiber Optic Cablel 7.5.11 BBU Alarm Cablel 7.5.13 GPS Jumperl 7.5.10 BBU interconnection signalcableAdded the length of the cables. BTS3900 (Ver.B)Hardware Description 1 Changes in BTS3900 (Ver.B) Hardware DescriptionIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.502 (2012-06-20)This is the second commercial release.Compared with issue 01 (2012-04-25), no topic is added or deleted.Compared with issue 01 (2012-04-25), this issue incorporates the following changes:Topic Change Description3.3.9 WBBP Changed the description of the indicators onthe boards.3.3.10 LBBP3.3.15 USCUl CPRI Cable Connections for a GSMOnly Base Stationl CPRI Cable Connections for a UMTSOnly Base Stationl CPRI Cable Connections for an LTEOnly Base Stationl CPRI Cable Connections for a GSM+UMTS Base Stationl CPRI Cable Connections for a GSM+LTE Base Stationl CPRI Cable Connections for a UMTS+LTE Base Stationl CPRI Cable Connections for a Triple-Mode Base StationAdded the CPRI cable connections of RFU+RRU configurations in each mode. 01 (2012-04-25)This is the first commercial release.Compared with issue Draft B (2012-03-20), no topic is added or deleted.Compared with issue Draft B (2012-03-20), this issue incorporates the following changes:Content Change Description3.3.6 WMPT Changed the description of the indicators onthe boards.3.3.7 UMPT3.3.5 GTMU3.3.8 LMPT3.3.9 WBBP3.3.11 FANBTS3900 (Ver.B)Hardware Description 1 Changes in BTS3900 (Ver.B) Hardware DescriptionIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.6Content Change Description3.3.12 UPEU3.3.14 UTRP3.3.15 USCU3.3.17 UCIU3.3.10 LBBP3.3.16 UBRI3.3.10 LBBP Added the cell bandwidth of the LBBP.7.5.10 BBU interconnection signal cable Changed the exterior of the inter-BBU signalcable.Transmission Cable Connections for aTriple-Mode Base StationAdded Transmission Cable Connections inthe GU (BBU0) + LO (BBU1) (BBUscascaded) scenario. Draft B (2012-03-20)This is the Draft release.Compared with issue Draft A (2012-02-10), no topic is added or deleted.Compared with issue Draft A (2012-02-10), this issue incorporates the following changes:Content Change Description2.2 Configurations of the BTS3900CabinetUpdated the figures of cabinets.2.3.1 Application Scenario of the BTS3900Cabinet (Only RFUs Configured)Optimized the figures of cabinetconfiguration.2.3.2 Application Scenario of the BTS3900Cabinet (RRUs and RFUs Configured)6.2 ELU Updated the figure of ELU.The whole document Made some editorial changes. Draft A (2012-02-10)This is the Draft release.Compared with issue MBTS V100R004C00, WCDMA-NodeB V200R013C00, GSM-BTSV100R013C00, eNodeB V100R004C00, this issue adds the following topics:BTS3900 (Ver.B)Hardware Description 1 Changes in BTS3900 (Ver.B) Hardware DescriptionIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.7l 2.4 BTS3900 Engineering Specificationsl 2.3.2 Application Scenario of the BTS3900 Cabinet (RRUs and RFUs Configured)l 3.2 RRUl 3.3.7 UMPTl 7.5.16 Cable Between two Combined Base Stationsl 7.5.15 Adapter Used for Local Maintenancel CPRI Cable Connections for a Triple-Mode Base Stationl 7.5.10 BBU interconnection signal cableCompared with issue MBTS V100R004C00, WCDMA-NodeB V200R013C00, GSM-BTSV100R013C00, eNodeB V100R004C00, this issue incorporates the following change:Content Change DescriptionThe whole document Reorganized the document and optimizedsome descriptions and figures. Compared with issue MBTS V100R004C00, WCDMA-NodeB V200R013C00, GSM-BTSV100R013C00, eNodeB V100R004C00, no content is deleted.BTS3900 (Ver.B)Hardware Description 1 Changes in BTS3900 (Ver.B) Hardware DescriptionIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.82 BTS3900 CabinetAbout This ChapterThis chapter describes the exteriors, boards, modules, and configurations of the BTS3900cabinet, providing reference for planning and deploying the BTS3900.2.1 Exterior of the BTS3900 CabinetThe BTS3900 cabinet is a vertical cabinet, which is designed in compliance with the IEC297standard.2.2 Configurations of the BTS3900 CabinetThis section describes the interior and configurations of the BTS3900 cabinet.2.3 Application Scenario of the BTS3900 CabinetThe BTS3900 supports various cabinets to meet the requirements of different RFUconfigurations and space required for customer equipment. In different scenarios, BTS3900 canbe configured with only RFUs or with both RFUs and the RRUs.2.4 BTS3900 Engineering SpecificationsBTS3900 engineering specifications include input power specifications, equipmentspecifications, and environment specifications.BTS3900 (Ver.B)Hardware Description 2 BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.92.1 Exterior of the BTS3900 CabinetThe BTS3900 cabinet is a vertical cabinet, which is designed in compliance with the IEC297standard.Figure 2-1 shows the exterior of the BTS3900 cabinet.Figure 2-1 Exterior of the BTS3900 cabinet 2.2 Configurations of the BTS3900 CabinetThis section describes the interior and configurations of the BTS3900 cabinet.There are three types of BTS3900 cabinets: the BTS3900 DC (-48 V) cabinet, BTS3900 DC(+24 V) cabinet, and BTS3900 AC cabinet.Configurations of the BTS3900 DC CabinetFigure 2-2 shows the interior of the BTS3900 DC cabinet.BTS3900 (Ver.B)Hardware Description 2 BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.10Figure 2-2 Interior of the BTS3900 DC cabinetA. BTS3900 DC (-48V) Cabinet B. BTS3900 DC (+24V) Cabinet Table 2-1 describes the components in the cabinet.Table 2-1 Components in the BTS3900 DC cabinetNo. Module OptionalorMandatoryMaximumNumberConfigured in aSingleCabinetRemark1 FillerpanelOptional - If a slot in the RFU subrack is vacant,insert a filler panel into the slot. Thisensures normal ventilation of thecabinet.2 RFU Mandatory 6 The RFU modulates and demodulatesbaseband signals and RF signals,processes data, and combines anddivides signals.3 FanAssemblyMandatory 1 The fan assembly dissipates the heatfrom the cabinet.4 Airintakevent- - -BTS3900 (Ver.B)Hardware Description 2 BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.11No. Module OptionalorMandatoryMaximumNumberConfigured in aSingleCabinetRemark5 BBU3900Mandatory 1 The BBU3900 processes the basebandsignals.6 DCDU-01Mandatory 1 The DCDU-01 provides DC power forall components in the cabinet.7 PowerEquipment (DC/DC)Mandatory 1 The power system (DC/DC) convertsexternal +24 V DC power into -48 V DCpower and provides power for allcomponents in the cabinet.- Remaining space- - There is a 3 U space remaining in theBTS3900 DC (-48 V) cabinet forcustomized equipment. The customizedequipment must be able to work properlyat a temperature equal to or higher than+55C. The BTS3900 DC (-48 V)cabinet cannot provide power forcustomized transmission equipment. Configurations of the BTS3900 AC CabinetFigure 2-3 shows the interior of the BTS3900 AC cabinet.Figure 2-3 Interior of the BTS3900 AC cabinet BTS3900 (Ver.B)Hardware Description 2 BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.12Table 2-2 describes the components in the cabinet.Table 2-2 Components in the BTS3900 AC cabinetNo. Module OptionalorMandatoryMaximumNumberConfigured in aSingleCabinetRemark1 FillerpanelOptional - If a slot in the RFU subrack is vacant,insert a filler panel into the slot. Thisensures normal ventilation of thecabinet.2 RFU Mandatory 6 The RFU modulates and demodulatesbaseband signals and RF signals,processes data, and combines anddivides signals.3 FanAssemblyMandatory 1 The fan assembly dissipates the heatfrom the cabinet.4 Airintakevent- - -5 BBU3900Mandatory 1 The BBU3900 processes the basebandsignals.6 DCDU-01Mandatory 1 The DCDU-01 provides DC power forall components in the cabinet.7 PowerEquipment (AC/DC)Mandatory 1 The power system (AC/DC) convertsexternal 220 V AC single-phase power,220 V AC three-phase power, and 110 VAC dual-live-wire power into -48 V DCpower and provides power for allcomponents in the cabinet. 2.3 Application Scenario of the BTS3900 CabinetThe BTS3900 supports various cabinets to meet the requirements of different RFUconfigurations and space required for customer equipment. In different scenarios, BTS3900 canbe configured with only RFUs or with both RFUs and the RRUs.BTS3900 (Ver.B)Hardware Description 2 BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.132.3.1 Application Scenario of the BTS3900 Cabinet (Only RFUsConfigured)This section describes the configurations of a single-mode, dual-mode, and triple-mode basestation if only RFUs are configured in a BTS3900 cabinet.Cabinet Configuration Rulesl A maximum of two indoor cabinets can be configured at one site and a maximum of 12RFUs can be configured in two cabinets of a site. If the number of RFUs exceeds 12, anextra site is required.l In a single-mode or dual-mode scenario, only one BBU is configured.l In a triple-mode scenario, two BBUs are configured.l Both the DC cabinet and AC cabinets support combined cabinet scenarios.l If cabinets are stacked, the BTS3900 (-48 V DC) cabinet is used preferentially. In specialscenarios, for example, the space is insufficient, +24 V DC or AC cabinets can be used.However, the highest operating temperature of the cabinets is 50C.Cabinet Configurations of a Single- or Dual-Mode ScenarioFigure 2-4, Figure 2-5 and Figure 2-6 show the application scenarios of the BTS3900 in single-or dual-mode.Figure 2-4 BTS3900 in single- or dual-mode scenario (single cabinet)1. BTS3900 DC (-48 V) 2. BTS3900 DC (+24 V) 3. BTS3900 AC BTS3900 (Ver.B)Hardware Description 2 BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.14Figure 2-5 BTS3900 in single- or dual-mode scenario (side-by-side installation)1. BTS3900 DC (-48V) 2. BTS3900 DC (+24V) 3. BTS3900 AC Figure 2-6 BTS3900 in single- or dual-mode scenario (stack installation)BTS3900 (Ver.B)Hardware Description 2 BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.15 Cabinet Configurations of a Triple-Mode ScenarioFigure 2-7 and Figure 2-8 show the configurations of the BTS3900 cabinet in a triple-modescenario.Figure 2-7 BTS3900 in triple-mode scenario (side-by-side installation)1. BTS3900 DC (-48V) 2. BTS3900 DC (+24V) 3. BTS3900 AC BTS3900 (Ver.B)Hardware Description 2 BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.16Figure 2-8 BTS3900 in triple-mode scenario (stack installation) 2.3.2 Application Scenario of the BTS3900 Cabinet (RRUs and RFUsConfigured)This section describes the configurations of a single-mode, dual-mode, and triple-mode basestation when BTS3900 is configured with both RRUs and RFUs.Cabinet Configuration Rulesl In a single-mode or dual-mode scenario, the BTS3900 supports a maximum configurationof six RFUs with six RRUs. An additional site is needed when configuration exceeds sixRFUs and six RRUs.l In a triple-mode scenario, the BTS3900 supports a maximum configuration of twelve RFUswith six RRUs. An additional site is needed when configuration exceeds twelve RFUs andsix RRUs.l The RRUs are connected to the BTS3900 through optical cables, and the RRUs' power issupplied by a DCDU-03B installed on a wall.l Only the BTS3900 (-48 V DC) cabinet applies to the scenario where both the RRUs andRFUs are configured.l In a single-mode or dual-mode scenario, only one BBU is configured.l In a triple-mode scenario, two BBUs are configured.l When both the RFU and RRU support the GSM mode, the BBU3900 must be configuredwith a GTMUb. In addition, the RFUs supporting the GSM mode are connected to theGTMUb, and the RRUs supporting the GSM mode are connected to the UBRI.BTS3900 (Ver.B)Hardware Description 2 BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.17Cabinet Configurations of a Single- or Dual-Mode ScenarioFigure 2-9 shows the configurations of the BTS3900 in single- or dual-mode scenario.Figure 2-9 BTS3900 in single- or dual-mode scenario Cabinet Configurations of a Triple-Mode ScenarioFigure 2-10 and Figure 2-11 shows the configurations of the BTS3900 cabinet in a triple-modescenario.Figure 2-10 BTS3900 in triple-mode scenario (Cabinets installed side by side) BTS3900 (Ver.B)Hardware Description 2 BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.18Figure 2-11 BTS3900 in triple-mode scenario (Stacked cabinets) 2.4 BTS3900 Engineering SpecificationsBTS3900 engineering specifications include input power specifications, equipmentspecifications, and environment specifications.Input Power SpecificationsBTS3900 supports -48 V DC, +24 V DC, 110 V AC, and 220 V AC power input. Table 2-3 liststhe input power specifications.Table 2-3 Input power specifications of a BTS3900Input Power Voltage Range-48V DC -38.4 V DC to -57 V DC+24V DC +21.6 V DC to +29 V DC220V AC (single-phase) 176 V AC to 290 V ACBTS3900 (Ver.B)Hardware Description 2 BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.19Input Power Voltage Range220V AC (three-phase) 176 V AC to 290 V AC110V AC (dual-live-wire) 90 V AC to 135 V AC Equipment SpecificationsThe following table lists the equipment specifications of a BTS3900 cabinet.Table 2-4 Equipment specifications of a BTS3900 cabinetItem SpecificationsDimensions (H x W x D) Cabinet (without the base): 900 mm x 600mm x 450 mm (35.43 in. x 23.62 in. x 17.72in.)Base: 40 mm x 600 mm x 420 mm (1.57 in.x 23.62 in. x 16.54 in.)Weight 135 kg (297.675 lb) (full configuration,with one BBU and six RFUs, and withouttransmission devices) NOTEFor other engineering specifications of the BTS3900 cabinet, see 3900 Series Base Station TechnicalDescription.Environment SpecificationsTable 2-5 lists the environment specifications of the BTS3900.Table 2-5 Environment specificationsItem SpecificationsNoise Meeting the ETS 300 753 3.1 standardBTS3900 (Ver.B)Hardware Description 2 BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.203 Modules in the BTS3900 CabinetAbout This ChapterThis chapter describes the modules in the BTS3900 cabinet such as the RFU, RRU, BBU3900,and EMU.3.1 RFUThe radio frequency unit (RFU) modulates and demodulates baseband signals and RF signals,processes data, combines and divides signals. The types of RFUs vary according to differentmodes.3.2 RRUThe Radio Remote Unit (RRU) converts and forwards signals between the BBU and the antennasystem.3.3 BBU3900This section presents the exterior of the BBU3900 and describes the boards in the BBU3900 andtheir panels, functions, indicators, ports, and engineering specifications.3.4 GATMThe GSM Antenna and TMA control Module (GATM) controls the antenna and TMA.3.5 EMUThe Environment Monitoring Unit (EMU) is an environmental monitoring device that monitorsenvironmental conditions of the equipment room.BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.213.1 RFUThe radio frequency unit (RFU) modulates and demodulates baseband signals and RF signals,processes data, combines and divides signals. The types of RFUs vary according to differentmodes.3.1.1 GRFUGSM radio frequency unit (GRFU) is an RF unit of GSM radio filter and applies to GSM onlyscenario.PanelGRFUs fall into three types: GRFU V1, GRFU V2, and GRFU V2a. The three types of GRFUscan be identified by their labels. As shown in Figure 3-1, there is "V0" or "V1" on the label ofa GRFU V1, there is "V2" on the label of a GRFU V2, and there is "V2a" on the label of a GRFUV2a.Figure 3-1 GRFU panel FunctionA GRFU performs modulation and demodulation between baseband signals and radio frequency(RF) signals, processes data, and combines and divides signals.BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.22In addition,the GRFU has the following functions:l Converts the direct frequency conversion technology, modulates the baseband signals forthe GSM TX band. After filtering and amplification, the baseband signals are transmittedto the antenna system through the duplexer.l Receives uplink RF signals from the antenna system and then down-converts the receivedsignals to intermediate frequency (IF) signals. After an amplification, analog-to-digitalconversion, digital down-conversion, matched filtering, automatic gain control (AGC), theIF signals are sent to the baseband unit (BBU) for further processing.l Provides power control and VSWR detection.l Supplies power to the tower mounted amplifier (TMA) and controls the remote electricaltilt (RET) antenna.l Performs reverse power detection.l Synthesizes frequencies and tests loops.l Generates the common public radio interface (CPRI) clock, recovers the CPRI clock fromloss of synchronization, and detects alarms.PrinciplesA GRFU consists of a high-speed interface unit, signal processing unit, power amplifier, anddual-duplexer. Figure 3-2 shows the logical structure of the GRFU.Figure 3-2 Logical structure of the GRFU IndicatorsThe six indicators on the GRFU panel indicate the operating status of the GRFU. Table 3-1describes the indicators on the GRFU panel.BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.23Table 3-1 Indicators on the GRFU PanelIndicatorColor Status DescriptionRUN Green Steady on There is power supply, but the modulebreaks down or is verifying the softwareversion.Blinking (on for 1s andoff for 1s)The module works properly.Blinking (on for 0.125sand off for 0.125s)The module is loading software.Off There is no power supply, or the modulebreaks down.ALM Red Steady on Alarms (excluding VSWR alarms) aregenerated, and the module must bereplaced.Blinking (on for 1s andoff for 1s)Alarms are generated. The alarms maybe caused by the faults on the relatedboards or ports. Therefore, the necessityfor module replacement is uncertain.Off No alarm (excluding VSWR alarms) isgenerated.ACT Green Steady on The module works properly with the TXchannel enabled.Blinking (on for 1s andoff for 1s)The module works properly with the TXchannel disabled.VSWR Red Steady on The VSWR alarm is generated on theANT_TX/RXA port.Off No VSWR alarm is generated.CPRI0 Red andgreenSteady green The CPRI link is available.Steady red The reception of the optical module isabnormal, and an alarm is generated.Blinking red (on for 1sand off for 1s)The CPRI link has a loss-of-lock error.Off The small form-factor pluggable (SFP)module is not properly installed, or theoptical module is powered off.CPRI1 Red andgreenSteady green The CPRI link is available.Steady red The reception of the optical module isabnormal, and an alarm is generated.BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.24IndicatorColor Status DescriptionBlinking red (on for 1sand off for 1s)The CPRI link has a loss-of-lock error.Off The SFP module is not properlyinstalled, or the optical module ispowered off. PortsTable 3-2 describes the ports on the GRFU panel.Table 3-2 Ports on the GRFU PanelPort Type SilkscreenConnectorTypeDescriptionRF port ANT_RXBDINconnectorConnects to the antenna systemANT_TX/RXADINconnectorConnects to the antenna systemCPRI port CPRI0 SFP femaleconnectorConnects to the BBU, or an upper-level RFUin the cascading modeCPRI1 SFP femaleconnectorConnects to a lower-level RFU during thecascadingInterconnection port forreceiving RFsignalsRX_INB QMA femaleconnectorReceives the diversity signalsRX_OUTAQMA femaleconnectorTransmits the main signalsPower supplyportPWR 3V3 powerconnectorFeeds in powerMonitoringportMON RJ45connectorPort for monitoring and commissioning Technical SpecificationsThis section describes the technical specifications of the GRFU, which include supported modesand frequency bands, RF specifications, engineering specifications, and antenna capability.For the technical specifications of GRFU, see section GRFU Technical Specifications in the3900 Series Base Station Technical Description.BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.253.1.2 DRFUDouble radio frequency unit (DRFU) is an RF unit of GSM radio filter and applies to GSM onlyscenario.PanelFigure 3-3 shows the DRFU panel.Figure 3-3 DRFU panel FunctionThe DRFU performs modulation, demodulation, data processing, and combining and dividingfor baseband signals and radio frequency (RF) signals.In addition, the DRFU provides the following functions:l Converts the direct frequency conversion technology, modulates the baseband signals forthe GSM TX band. After filtering and amplification, the baseband signals are transmittedto the antenna system through the duplexer.l Receives uplink RF signals from the antenna system and then down-converts the receivedsignals to intermediate frequency (IF) signals. After amplification, analog-to-digitalconversion, digital down-conversion, matched filtering, automatic gain control (AGC), theIF signals are sent to a baseband unit (BBU) for further processing.BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.26l Performs power control.l Performs reverse power detection.l Synthesizes frequencies and tests loops.l Generates the common public radio interface (CPRI) clock, recovers the CPRI clock fromloss of synchronization, and detects alarms.A DRFU consists of a high-speed interface unit, signal processing unit, power amplifier, anddual-duplexer. Figure 3-4 shows the logical structure of the DRFU.Figure 3-4 Logical structure of the DRFU IndicatorsThere are six indicators on the DRFU panel, indicating its operating status. Table 3-3 describesthe status of the indicators on the DRFU.Table 3-3 Status of the Indicators on the DRFUIndicator Color Status DescriptionRUN Green Steady on There is power supply, but the modulebreaks down or is verifying thesoftware version.Blinking (on for 1s andoff for 1s)The module works properly.Blinking (on for 0.125sand off for 0.125s)The module is loading software.Off There is no power supply, or the modulebreaks down.ALM Red Steady on Alarms (excluding VSWR alarms) aregenerated, and the module must bereplaced.BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.27Indicator Color Status DescriptionBlinking (on for 1s andoff for 1s)Alarms are generated. The alarms maybe caused by the faults on the relatedboards or ports. Therefore, thenecessity for module replacement isuncertain.Off No alarm (excluding VSWR alarms) isgenerated.ACT Green Steady on The module works properly with theTX channel enabled.Blinking (on for 1s andoff for 1s)The module works properly with theTX channel disabled.VSWR Red Steady on The VSWR alarm is generated on theANT1 port.Blinking (on for 1s andoff for 1s)The VSWR alarm is generated on theANT2 port.Blinking (on for 0.125sand off for 0.125s)The VSWR alarm is generated on theANT1 and ANT2 ports.Off No VSWR alarm is generated.CPRI0 Red andgreenSteady green The CPRI link is available.Steady red The reception of the optical module isabnormal, and an alarm is generated.Blinking red (on for 1sand off for 1s)The CPRI link has a loss-of-lock error.Off The small form-factor pluggable (SFP)module is not properly installed, or theoptical module is powered off.CPRI1 Red andgreenSteady green The CPRI link is available.Steady red The reception of the optical module isabnormal, and an alarm is generated.Blinking red (on for 1sand off for 1s)The CPRI link has a loss-of-lock error.Off The SFP module is not properlyinstalled, or the optical module ispowered off. PortsTable 3-4 describes the ports on the DRFU.BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.28Table 3-4 Ports on the DRFUPort Type Silkscreen onthe PortConnectorTypeDescriptionPort fortransceivingRF signalsANT1 DIN femaleconnectorConnects to the antenna system.ANT2CPRI port CPRI0 SFP femaleconnectorConnects to a lower-level radiofrequency unit (RFU) during thecascading.CPRI1 Connects to the BBU, or an upper-levelRFU in the cascading mode.Interconnection port forreceiving RFsignalsRX1/IN QMA femaleconnectorReceives the diversity signals inantenna channel 1.RX1/OUT Transmits the diversity signals inantenna channel 1.RX2/IN Receives the diversity signals inantenna channel 2.RX2/OUT Transmits the diversity signals inantenna channel 2.Powersupply portPWR 3V3 powerconnectorFeeds in power. Technical SpecificationsThis section describes the technical specifications of the DRFU, which include supported modesand frequency Bands, RF Specifications, engineering specifications, and antenna capability.For the technical specifications of DRFU, see section DRFU Technical Specifications in the3900 Series Base Station Technical Description.3.1.3 WRFUWCDMA Radio Frequency (WRFU) is an RF unit of WCDMA radio filter and applies to UMTSonly scenario.PanelFigure 3-5 shows the panel of the WRFU.BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.29Figure 3-5 Panel of the WRFU FunctionsThe functions of the WRFU are as follows:l Implements the direct frequency conversion technique in the transmit channel. Thebaseband signals are modulated to WCDMA RF signals. After being filtered and amplifiedor being combined, the RF signals are transmitted through the duplex filter to the antennafor radio transmission.l Receives UL RF signals from the antenna system and then down-converts the receivedsignals to IF signals. After amplification, analog-to-digital conversion, digital down-conversion, matched filtering, automatic gain control (AGC), the IF signals are sent to theBBU for further processing.l Implements power control and Voltage Standing Wave Ratio (VSWR) detectionl Provides reverse power detectionl Supplies power to the tower mounted amplifier (TMA) and controls the remote electricaltilt (RET) antenna.l Provides frequency synthesis and loopback testl Generates the CPRI clock, recovers the CPRI clock from loss of synchronization, anddetects alarmsl Supports 40 W (2 carriers) and 80 W (4 carriers) power outputsBTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.30PrincipleThe WRFU consists of the high-speed interface unit, signal processing unit, power amplifier,and duplex unit. Figure 3-6 shows the principle of the WRFU.Figure 3-6 Principle of the WRFU LEDsTable 3-5 describes the LEDs on the WRFU panel.Table 3-5 LEDs on the WRFU panelLabel Color State DescriptionRUN Green ON There is power supply, but the modulebreaks down or is verifying thesoftware version.OFF The module works properly.Blinking (on for 1s andoff for 1s)The module is loading software.Blinking (on for 0.125sand off for 0.125s)There is no power supply, or themodule breaks down.ALM Red ON Alarms (excluding VSWR alarms) aregenerated, and the module must bereplaced.Blinking (on for 1s andoff for 1s)Alarms are generated. The alarms maybe caused by the faults on the relatedboards or ports. Therefore, thenecessity for module replacement isuncertain.OFF No alarm (excluding VSWR alarms) isgenerated.BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.31Label Color State DescriptionACT Green ON The module works properly with theTX channel enabled.Blinking (on for 1s andoff for 1s)The module works properly with theTX channel disabled.VSWR Red ON (red) VSWR-related alarms are generatedon the ANT_TX/RXA port.OFF (red) No VSWR alarm is generated.CPRI0 Red/Green On (green) The CPRI links are normal.On (red) The reception of the optical module isabnormal, and an alarm is generated.Blinking red (on for 1sand off for 1s)The CPRI link has a loss-of-lock error.OFF The SFP is out of position, or theoptical module is powered off.CPRI1 Red/Green On (green) The CPRI links are normal.On (red) The reception of the optical module isabnormal, and an alarm is generated.Blinking red (on for 1sand off for 1s)The CPRI link has a loss-of-lock error.OFF The SFP is out of position, or theoptical module is powered off. PortsTable 3-6 describes the ports on the WRFU panel.Table 3-6 Ports on the WRFU panelPort Label Connector DescriptionRF port ANT_RXB DINconnectorRF RX port for connecting to the antennasystemANT_TX/RXADINconnectorRF TX/RX port for connecting to theantenna systemCPRI CPRI0 SFP femaleconnectorConnected to the BBU, or the upper-levelWRFU during the cascadingCPRI1 SFP femaleconnectorConnected to the lower-level WRFUduring the cascadingBTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.32Port Label Connector DescriptionInterconnection port for RFRX signalsRX_INB QMA femaleconnectorReceives the diversity signals.RX_OUTA QMA femaleconnectorTransmits the main signals.Power supplysocketPWR 3V3 powerconnectorFeeding powerMonitoringportMON RJ45connectorPort for monitoring and commissioning Technical SpecificationsThis section describes the technical specifications of the WRFU, which include supported modesand frequency bands, RF specifications, engineering specifications, and antenna capability.For the technical specifications of WRFU, see section WRFU Technical Specifications in the3900 Series Base Station Technical Description.3.1.4 WRFUa DescriptionThis section describes WRFUa hardware, including panels, functions, principles, indicators, andports.PanelThe following figure shows the WRFUa panel.BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.33Figure 3-7 WRFUa panel PrincipleA WRFUa consists of the high-speed interface unit, signal processing unit, power amplifier, andduplexer. The following figure shows the logic structure of a WRFUa.Figure 3-8 Logic structure of a WRFUa FunctionA WRFUa performs the following functions:BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.34l Performs digital up-convert on intermediate frequency (IF) signals on the transmittingchannel, and modulates baseband signals to RF signals. After being filtered and amplified,the RF signals are sent by the duplex filter to the antenna.l Receives RF signals from the antenna system and then down-converts the received signalsto IF signals. After being amplified, analog-to-digital converted, digital down-converted,matched filtered, and digital automatic gain control (DAGC) processed, the IF signals aresent to the BBU for further processing.l Controls power.l Tests the VSWR.l Manages the TMA power feeding and RET antennas.l Controls the DPD feedback. That is, a WRFUa takes samples of output signals, analyzesthe samples, and performs linear control on transmit signals based on the analysis.l Generates the CPRI clock, recovers the CPRI clock from out-of-synchronization, anddetects alarms.IndicatorTable 3-7 describes the indicators on the WRFUa panel.Table 3-7 Indicators on the WRFUa panelIndicatorColor State MeaningRUN Green Steady on There is power supply, but the moduleis faulty or the version is being checked.Blinking (on for 1s andoff for 1s)The module is working.Blinking (on for 0.125sand off for 0.125s)The module is loading software.Steady off There is no power supply or the moduleis faulty.ALM Red Steady on Alarms (excluding VSWR alarms) aregenerated and the module needs to bereplaced.Blinking (on for 1s andoff for 1s)Alarms are generated. The alarms maybe caused by the faults on the relatedboards or ports. Therefore, you need tolocate the fault before deciding whetherto replace the module.Steady off No alarm (excluding the VSWR alarm)is generated.ACT Green Steady on The module is functioning properlywith TX channels enabled.BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.35IndicatorColor State MeaningBlinking (on for 1s andoff for 1s)The module is functioning properlywith TX channels disabled.VSWR Red Steady on A VSWR alarm is generated on theANT_TX/RXA port.Blinking (on for 1s andoff for 1s)A VSWR alarm is generated on theANT_RXB port.Blinking (on for 0.125sand off for 0.125s)VSWR alarms are generated on theANT_TX/RXA and ANT_RXB ports.Steady off No VSWR alarm is generated.CPRI0 Red orgreenSteady green The CPRI link is functioning properly.Steady red The optical module fails to receivesignals.Blinking red (on for 1sand off for 1s)The CPRI link is out of lock.Steady off The SFP module is not properlyinstalled, or the optical module ispowered off.CPRI1 Red orgreenSteady green The CPRI link is functioning properly.Steady red The optical module fails to receivesignals.Blinking red (on for 1sand off for 1s)The CPRI link is out of lock.Steady off The SFP module is not properlyinstalled, or the optical module ispowered off. PortTable 3-8 describes the ports on the WRFUa panel.Table 3-8 Ports on the WRFUa panelPort Type Silkscreen Connector DescriptionRF port ANT_RXB DINconnectorConnects to the antenna system forreceiving signals.BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.36Port Type Silkscreen Connector DescriptionANT_TX/RXADINconnectorConnects to the antenna system fortransiting and receiving signals.CPRI port CPRI0 SFP femaleconnectorConnects to the BBU or connects to thecascaded upper-level WRFUa.CPRI1 SFP femaleconnectorConnects to the cascaded lower-levelWRFUa.Interconnection port forreceiving RFsignalsRX_INB QMA femaleconnectorReceives diversity signals.RX_OUTA QMA femaleconnectorTransmits main signals.Power port PWR 3V3connectorConnects the power equipment.MonitoringportMON RJ45connectorPerforms monitoring and commissioning. Technical SpecificationsThis section describes the technical specifications of the WRFUa, which include supportedmodes and frequency bands, RF specifications, engineering specifications, and antennacapability.For the technical specifications of WRFUa, see section WRFUa Technical Specifications inthe 3900 Series Base Station Technical Description.3.1.5 LRFULTE Radio Frequency Unit (LRFU) is an RF unit of LTE Frenquency Division Duplex (FDD)and applies to LTE Only scenario.PanelFigure 3-9 shows the panel of the LRFU.BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.37Figure 3-9 Panel of the LRFU FunctionsThe LRFU processes uplink and downlink services and controls and monitors internal boardsor modules. Figure 3-10 shows the logical structure of the LRFU.Figure 3-10 Logical structure of the LRFUBTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.38LEDsTable 3-9 describes the LEDs on the panel of the LRFU.Table 3-9 LEDs on the LRFULabel Color Status DescriptionRUN Green On There is power supply, but the modulebreaks down or is verifying thesoftware version.Off The module works properly.Blinking (on for 1s andoff for 1s)The module is loading software.Blinking (on for 0.125sand off for 0.125s)There is no power supply, or themodule breaks down.ALM Red On Alarms (excluding VSWR alarms) aregenerated, and the module must bereplaced.Blinking (on for 1s andoff for 1s)Alarms are generated. The alarms maybe caused by the faults on the relatedboards or ports. Therefore, thenecessity for module replacement isuncertain.Off No alarm (excluding VSWR alarms) isgenerated.ACT Green On The module works properly (TXchannel enabled).Blinking (on for 1s andoff for 1s)The module is running (TX channeldisabled).VSWR Red On (red) A VSWR-related alarm is generated atthe ANT_TX/RXA port.Blinking (on for 1s andoff for 1s)A VSWR-related alarm is generated atthe ANT_TX/RXB port.Blinking (on for 0.125sand off for 0.125s)A VSWR-related alarm is generated atthe ANT_TX/RXA and ANT_TX/RXB ports.Off (red) No VSWR alarm is generated.CPRI0 Red/Green On (green) The CPRI links are normal.On (red) The reception of the optical module isabnormal, and an alarm is generated.BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.39Label Color Status DescriptionBlinking red (on for 1sand off for 1s)The CPRI link has a loss-of-lock error.Off The SFP module is out of position, orthe optical module is powered off.CPRI1 Red/Green On (green) The CPRI links are normal.On (red) The reception of the optical module isabnormal, and an alarm is generated.Blinking red (on for 1sand off for 1s)The CPRI link has a loss-of-lock error.Off The SFP module is out of position, orthe optical module is powered off. PortTable 3-10 describes the ports on the panel of the LRFU.Table 3-10 Ports on the panel of the LRFUPort Label Connector DescriptionRF port ANT_TX/RXBDIN connector RF TX/RX port for connecting to the antennasystemANT_TX/RXADIN connectorCPRI port CPRI0 SFP femaleconnectorUsed for the connection to the BBU. CPRI0port and CPRI1 port work in mutual backupmode.CPRI1 SFP femaleconnectorUsed for the connection to the BBU. CPRI1port and CPRI0 port work in mutual backupmode.PowersupplysocketPWR 3V3 powerconnectorUsed for feeding -48 V DC input powerMonitoringportMON RJ45 connector Port for monitoring and commissioning Technical SpecificationsThis section describes the technical specifications of the LRFU, which include supported modesand frequency Bands, RF Specifications, engineering specifications, and antenna capability.BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.40For the technical specifications of LRFU, see section LRFU Technical Specifications in the3900 Series Base Station Technical Description.3.1.6 MRFUMulti-Mode Radio Frequency Unit (MRFU) is a type of RF unit that can work in multiple radiofrequencies. It applies to scenarios such as GO, UO, LO, GU and GL.PanelMRFUs fall into three types: MRFU V1, MRFU V2, and MRFU V2a. The three types of MRFUscan be identified by their labels. As shown in Figure 3-11, there is "V0" or "V1" on the label ofa MRFU V1, there is "V2" on the label of a MRFU V2, and there is "V2a" on the label of aMRFU V2a.Figure 3-11 MRFU Panel FunctionThe functions of MRFU are as follows:l Modulates and converts the signals to the TX band by up-converting the intermediatefrequency (IF) signals, filters and amplifies the signals and then transmits the signals to theantenna through the duplexer.l Receives radio frequency (RF) signals from the antenna system, down-converts the signalsto IF signals, and then transmits them to the baseband unit (BBU) after an amplification,BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.41analog-to-digital conversion, digital down-conversion, matched filtering, and DigitalAutomatic Gain Control (DAGC).l Performs power control.l Provides Voltage Standing Wave Ration (VSWR) detection.l Supplies power to the tower mounted amplifier (TMA) and controls the remote electricaltilt (RET) antenna.l Controls Digital Predistortion (DPD) based on feedback signals.l Generates the common public radio interface (CPRI) clock, recovers the CPRI clock fromloss of synchronization, and detects alarms.PrinciplesA MRFU consists of the high-speed interface unit, signal processing unit, power amplifier, andduplexer. Figure 3-12 shows the principle of the MRFU.Figure 3-12 Principle of the MRFU IndicatorsTable 3-11 describes the indicators on the MRFU.Table 3-11 Indicators on the MRFUIndicatorColor Status DescriptionRUN Green Steady on There is power supply, but the modulebreaks down or is verifying the softwareversion.Blinking (on for 1s andoff for 1s)The module works properly.Blinking (on for 0.125sand off for 0.125s)The module is loading software.BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.42IndicatorColor Status DescriptionOff There is no power supply, or the modulebreaks down.ALM Red Steady on Alarms (excluding VSWR alarms) aregenerated, and the module must bereplaced.Blinking (on for 1s andoff for 1s)Alarms are generated. The alarms maybe caused by the faults on the relatedboards or ports. Therefore, the necessityfor module replacement is uncertain.Off No alarm (excluding VSWR alarms) isgenerated.ACT Green Steady on The MRFU works properly with the TXchannel enabled.Blinking (on for 1s andoff for 1s)The MRFU works properly with the TXchannel disabled.VSWR Red Steady on The VSWR alarm is generated on theANT_TX/RXA port.Off No VSWR alarm is generated.CPRI0 Red andgreenSteady green The CPRI link is available.Steady red The optical module fails to receivesignals.Blinking red (on for 1sand off for 1s)The reception of the optical module isabnormal, and an alarm is generated.Off The small form-factor pluggable (SFP)module is not properly installed, or theoptical module is powered off.CPRI1 Red andgreenSteady green The CPRI link is available.Steady red The reception of the optical module isabnormal, and an alarm is generated.Blinking red (on for 1sand off for 1s)The CPRI link has a loss-of-lock error.Off The SFP module is not properlyinstalled, or the optical module ispowered off. BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.43PortsTable 3-12 describes the ports on the MRFU.Table 3-12 Port on the MRFUPort Type Silkscreen ConnectorTypeDescriptionRF port ANT_RXB DINconnectorRF RX port for connecting to the antennasystemANT_TX/RXADINconnectorRF TX/RX port for connecting to theantenna systemCPRI port CPRI0 SFP femaleconnectorConnects to the BBUCPRI1 SFP femaleconnectorConnects to the BBUInterconnection port forreceiving RFsignalsRX_INB QMA femaleconnectorReceives the diversity signalsRX_OUTA QMA femaleconnectorTransmits the main signalsPower supplyportPWR 3V3 powerconnectorFeeding -48 V DC powerMonitoringportMON RJ45connectorPort for monitoring and commissioning Technical SpecificationsThis section describes the technical specifications of the MRFU, which include supported modesand frequency bands, RF specifications, engineering specifications, and antenna capability.For the technical specifications of MRFU, see section MRFU Technical Specifications in the3900 Series Base Station Technical Description.3.2 RRUThe Radio Remote Unit (RRU) converts and forwards signals between the BBU and the antennasystem.The RRU implements the following functions:l Receives downlink baseband data from the BBU and sends uplink baseband data for thecommunication between the BBU and the RRU.l The RX channel receives RF signals from the antenna system, down-converts the receivedsignals to IF signals, amplifies the IF signals, and performs analog-to-digital (A/D)BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.44conversion. The TX channel filters downlink signals, performs digital-to-analog (D/A)conversion, and up-converts RF signals to the TX band.l Multiplexes RX and TX signals, which enables these signals to share the same antennapath. It also filters the RX and TX signals.For details about various types of RRUs, see the hardware description of the corresponding RRU.3.3 BBU3900This section presents the exterior of the BBU3900 and describes the boards in the BBU3900 andtheir panels, functions, indicators, ports, and engineering specifications.3.3.1 BBU3900The BBU3900, which has a case structure, is 19 inches wide and 2 U high.The dimensions of the BBU3900 are 86 mm x 442 mm x 310 mm (3.39 in. x 17.4 in. x 12.2 in.)(H x W x D), as shown in Figure 3-13.Figure 3-13 BBU3900 The Electronic Serial Number (ESN) is a unique identifier of a Network Element (NE). It is usedduring base station commissioning.l If there is a label on the FAN unit of the BBU, the ESN is printed on the label and a mountingear of the BBU, as shown in Figure 3-14.BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.45Figure 3-14 ESN (1)l If there is no label on the FAN unit of the BBU, the ESN is printed on a mounting ear ofthe BBU, as shown in Figure 3-15.Figure 3-15 ESN (2) 3.3.2 BBU3900 FunctionsThe BBU3900 is a baseband processing unit. It processes the baseband signals of the base station.The BBU3900 performs the following functions:l Provides ports for communication between the base station and the BSC or RNC.l Provides CPRI ports for communication between the BBU and the RFUs.l Provides USB(1) ports. A USB flash drive that stores required software and configurationdata can be inserted into the USB port to perform the automatic base station upgrade.l Provides an OM channel between the base station and the LMT or the M2000 to operateand maintain the base station.l Processes uplink and downlink data.l Manages the entire dual-mode system in terms of OM and signaling processing.l Provides the system clock.NOTE(1) The security of the USB port is ensured by encryption. The TST port is used for commissioning thebase station rather than importing or exporting the base station configuration.BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.463.3.3 BBU3900 Technical SpecificationsThis section describes the technical specifications of the BBU, which include capacity,transmission ports, input power specifications, equipment specifications, environmentspecifications, and surge protection specifications.For details about technical specifications of a BBU3900, see section "BBU3900 TechnicalSpecifications" in the 3900 Series Base Station Technical Description.3.3.4 BBU3900 Slot AssignmentThis section describes the slot assignment principles for BBU boards in the following scenarios:BBU3900 GSM, BBU3900 UMTS, BBU3900 LTE, BBU3900 GSM+UMTS (GU for short),BBU3900 GSM+LTE (GL for short), BBU3900 UMTS+LTE (UL for short), BBU3900 GU+L(BBU not interconnected), BBU3900 GL+U (BBU not interconnected), BBU3900 GU+L(UCIU+UMPT), BBU3900 GL+U (UCIU+UMPT), and BBU3900 GU+UL (UCIU+UMPT).Slots in the BBU3900Slots in the BBU3900 are the same in different scenarios, as shown in Figure 3-16.Figure 3-16 Slots in the BBU3900 BBU3900 GSMTable 3-13 lists the slot assignment principles for the boards in the BBU3900 GSM.Table 3-13 Slot assignment principles for the boards in the BBU3900 GSMBoard Optional/MandatoryMaximumNumberSlot RestrictionGTMU Mandatory 1 Slots 5 and 6 It must beconfigured inslot 6, with bothslots 5 and 6occupied.FAN Mandatory 1 Slot 16 It must beconfigured inslot 16.BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.47Board Optional/MandatoryMaximumNumberSlot RestrictionUPEU Mandatory 2 Slot 18 or 19 A single UPEUis preferentiallyconfigured inslot 19.USCU Optional 1 Slot 0 or 1 It is referentiallyconfigured inslot 1.Whenconfigured withtwo satellitecards, it isconfigured inslot 1 (with bothslots 0 and 1occupied).UTRP Optional 1 Slot 0 or 4 It ispreferentiallyconfigured inslot 4.UEIU Optional 1 Slot 18 -UCIU Optional 1 Slot 0 or 4 It ispreferentiallyconfigured inslot 4.UBRI Optional 1 Slot 2 - Figure 3-17 shows the typical configurations of the BBU3900 GSM.Figure 3-17 Typical configuration of the BBU3900 GSM BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.48BBU3900 UMTSTable 3-14 describes the slot assignment principles for the boards in the BBU3900 UMTS.Table 3-14 Slot assignment principles for the boards in the BBU3900 UMTSBoard Optional/MandatoryMaximumNumberSlot RestrictionWMPT/UMPT Mandatory 2 Slot 6 or 7 A single UMPTor WMPT ispreferentiallyconfigured inslot 7.The UMPT andWMPT cannotbe configuredsimultaneously.BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.49Board Optional/MandatoryMaximumNumberSlot RestrictionWBBP Mandatory 6 Slots 0 to 5 It is configuredin slot 3 bydefault.l If moreCPRI portsare required,the WBBP isinstalled, indescendingorder ofpriority, inslot 3 or 2.l If no moreCPRI portsare required,the WBBP isinstalled, indescendingorder ofpriority, inslot 3, 0, 1, 2,4, or 5.The slotassignmentprinciples forthe WBBPboards are asfollows:l The WBBPdor WBBPf ispreferentially configuredin slot 3 or 2.The WBBPftakesprecedenceover theWBBPd inslotassignment.l If five ormoreWBBPs arerequired,ensure that aWBBP isBTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.50Board Optional/MandatoryMaximumNumberSlot Restrictioninstalled ineach of slots2 and 3. Atleast one ofthe WBBPsin slots 2 and3 is WBBPdor WBBPf.l If both slots2 and 3 areoccupied bythe WBBPaor WBBPbboards,exchangeboards toensure thatthe WBBPdor WBBPf isconfiguredin slot 3 or 2.l If theWBBPf4 isinstalled inthe sameBBU as theWBBPf1,WBBPf2,andWBBPf3,the WBBPf4ispreferentially installed inslots 2 and 3.FAN Mandatory 1 Slot 16 It must beconfigured inslot 16.UPEU Mandatory 2 Slot 18 or 19 A single UPEUis preferentiallyconfigured inslot 19.UEIU Optional 1 Slot 18 -BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.51Board Optional/MandatoryMaximumNumberSlot RestrictionUTRP Optional 2 Slot 0, 1, 4, 5, or6A single UTRPis preferentiallyconfigured inslot 4. If moreUTRPs arerequired, theUTRP isinstalled, indescendingorder of priority,in slot 4, 5, 0, 1,or 6.If severalUTRPs areconfigured, thepriority of themas following:UTRPc,UTRP6,UTRP9,UTRP2,UTRP3/UTRP4USCU Optional 1 Slot 1 or 0 It ispreferentiallyconfigured inslot 1.Whenconfigured withtwo satellitecards, it isconfigured inslot 1 (with bothslots 0 and 1occupied). Figure 3-18 shows the typical configurations of the BBU3900 UMTS.BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.52Figure 3-18 Typical configuration of the BBU3900 UMTS BBU3900 LTETable 3-15 describes the slot assignment principles for the boards in the BBU3900 LTE.Table 3-15 Slot assignment principles for the boards in the BBU3900 LTEBoard Optional/MandatoryMaximumNumberSlot RestrictionLMPT/UMPT Mandatory 2 Slot 6 or 7 A single LMPTor UMPT ispreferentiallyconfigured inslot 7.The UMPT andWMPT cannotbe configuredsimultaneously.LBBP Mandatory 6 Slots 0 to 5 A single LBBPis preferentiallyconfigured inslot 3.If more LBBPsare required, theLBBP isinstalled, indescendingorder of priority,in slot 3, 1, 2, 0,4, or 5.FAN Mandatory 1 Slot 16 It is configuredonly in slot 16.BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.53Board Optional/MandatoryMaximumNumberSlot RestrictionUPEU Mandatory 2 Slot 18 or 19 A single UPEUis preferentiallyconfigured inslot 19.UEIU Optional 1 Slot 18 -UTRP Optional 1 Slot 4 or 5 It ispreferentiallyconfigured inslot 4.USCU Optional 1 Slot 0, 1, 4, or 5 A single USCUis preferentiallyconfigured inslot 5. A USCUthat occupies 1U space isconfigured inslot 5 (with bothslots 5 and 4occupied).If slots 4 and 5are occupied, aUSCU ispreferentiallyconfigured inslot 1, or aUSCU that usesa dual-satellitecard isconfigured inslot 1, with bothslots 1 and 0occupied. Figure 3-19 shows the typical configurations of the BBU3900 LTE.Figure 3-19 Typical configuration of the BBU3900 LTEBTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.54 BBU3900 GUTable 3-16 describes the slot assignment principles for the boards in the BBU3900 GU.Table 3-16 Slot assignment principles for the boards in the BBU3900 GUBoard Optional/MandatoryMaximumNumberSlot RestrictionWMPT/UMPT Mandatory 1 Slot 7 The WMPT orUMPT isconfigured onlyin slot 7.The UMPT andWMPT cannotbe configuredsimultaneously.GTMU Mandatory 1 Slots 5 and 6 It is configuredonly in slot 6(with slots 5 and6 occupied).BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.55Board Optional/MandatoryMaximumNumberSlot RestrictionWBBP Mandatory 5 Slots 0 to 4 It is configuredin slot 3 bydefault.l If moreCPRI portsare required,the WBBP isinstalled, indescendingorder ofpriority, inslot 3 or 2.l If no moreCPRI portsare required,the WBBP isinstalled, indescendingorder ofpriority, inslot 3, 0, 1, 2,or 4.If a WBBPd orWBBPf isrequired, it isinstalled, indescendingorder of priority,in slot 3 or 2.If five or moreWBBPs arerequired, ensurethat a WBBP isinstalled in eachof slots 2 and 3.At least one ofthe WBBPs inslots 2 and 3 isWBBPd orWBBPf.The WBBPftakesprecedence overthe WBBPdduring slotassignment.BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.56Board Optional/MandatoryMaximumNumberSlot RestrictionFAN Mandatory 1 Slot 16 It is configuredonly in slot 16.UPEU Mandatory 2 Slot 18 or 19 A single UPEUis preferentiallyconfigured inslot 19.UEIU Optional 1 Slot 18 -UTRP Optional 2 Slot 0 or 4 It ispreferentiallyconfigured inslot 4.The UTRP inGSM modetakesprecedence overthe UTRP inUMTS modeduring slotassignment.USCU Optional 1 Slot 0, 1, or 4 It ispreferentiallyconfigured inslot 4.UBRI Optional 1 Slot 2 - Figure 3-20 shows the typical configurations of the BBU3900 GU.Figure 3-20 Typical configuration of the BBU3900 GU BBU3900 GLTable 3-17 describes the slot assignment principles for the boards in the BBU3900 GL.BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.57Table 3-17 Slot assignment principles for the boards in the BBU3900 GLBoard Optional/MandatoryMaximumNumberSlot RestrictionLMPT/UMPT Mandatory 1 Slot 7 It is configuredonly in slot 7.The UMPT andWMPT cannotbe configuredsimultaneously.GTMU Mandatory 1 Slots 5 and 6 It is configuredonly in slot 6(with slots 5 and6 occupied).LBBP Mandatory 5 Slots 0 to 4 A single LBBPis preferentiallyconfigured inslot 3.If more LBBPsare required, theLBBP isinstalled, indescendingorder of priority,in slot 3, 1, 2, 0,or 4.FAN Mandatory 1 Slot 16 It is configuredonly in slot 16.UPEU Mandatory 2 Slot 18 or 19 A single UPEUis preferentiallyconfigured inslot 19.UEIU Optional 1 Slot 18 -UTRP Optional 2 Slot 0 or 4 It ispreferentiallyconfigured inslot 4.The UTRP inGSM modetakesprecedence overthe UTRP inLTE modeduring slotassignment.BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.58Board Optional/MandatoryMaximumNumberSlot RestrictionUSCU Optional 1 Slot 0, 1, or 4 It ispreferentiallyconfigured inslot 4.UBRI Optional 1 Slot 2 - Figure 3-21 shows the typical configurations of the BBU3900 GL.Figure 3-21 Typical configuration of the BBU3900 GL BBU3900 ULTable 3-18 describes the slot assignment principles for the boards in the BBU3900 UL.Table 3-18 Slot assignment principles for the boards in the BBU3900 ULBoard Optional/MandatoryMaximumNumberSlot RestrictionLMPT/UMPT Mandatory 1 Slot 6 It is configuredonly in slot 6.WMPT/UMPT Mandatory 1 Slot 7 It is configuredonly in slot 7.BTS3900 (Ver.B)Hardware Description 3 Modules in the BTS3900 CabinetIssue 13 (2014-06-26) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.59Board Optional/MandatoryMaximumNumberSlot RestrictionLBBP Mandatory 5 Slot 0, 1, 2, 4, or5A single LBBPis configuredonly in slot 2. Ifmore LBBPs arerequired, theLBBP isinstalled, indescendingorder of priority,in slot 2, 1, 0, 4,or 5.WBBP Mandatory 5 Slot 0, 1, 3, 4, or5A single WBBPis configuredonly in slot 3. Ifmore WBBPsare required, theWBBP isinstalled, indescendingorder of priority,in slot 3, 0, 1, 4,or 5.If a WBBPd orWBBPf isrequ