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Figure 2-2

AAU composition

2.2 AAU Function

The function of an AAU is performed by the functional modules in it.

The following figure shows the logical structure of an AAU.

AAU3902
Hardware Description

2 AAU Introduction

Issue 06 (2014-07-30)

Huawei Proprietary and Confidential

Copyright © Huawei Technologies Co., Ltd.

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Содержание AAU3902

Страница 1: ...AAU3902 Hardware Description Issue 06 Date 2014 07 30 HUAWEI TECHNOLOGIES CO LTD ...

Страница 2: ... be within the purchase scope or the usage scope Unless otherwise specified in the contract all statements information and recommendations in this document are provided AS IS without warranties guarantees or representations of any kind either express or implied The information in this document is subject to change without notice Every effort has been made in the preparation of this document to ens...

Страница 3: ... exteriors may be different Product Version The following table lists the product versions related to this document Product Name Solution Version Product Version DBS3900 SRAN7 0 and later versions V100R007C00 and later versions RAN14 0 and later versions V200R014C00 and later versions eRAN3 0 and later versions V100R005C00 and later versions Intended Audience This document is intended for l Base s...

Страница 4: ...ious injury Indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury Indicates a potentially hazardous situation which if not avoided could result in equipment damage data loss performance deterioration or unanticipated results NOTICE is used to address practices not related to personal injury Calls attention to important information best practices an...

Страница 5: ...tical bars One item is selected or no item is selected x y Optional items are grouped in braces and separated by vertical bars A minimum of one item or a maximum of all items can be selected x y Optional items are grouped in brackets and separated by vertical bars Several items or no item can be selected GUI Conventions The GUI conventions that may be found in this document are defined as follows ...

Страница 6: ...rations The mouse operations that may be found in this document are defined as follows Action Description Click Select and release the primary mouse button without moving the pointer Double click Press the primary mouse button twice continuously and quickly without moving the pointer Drag Press and hold the primary mouse button and move the pointer to a certain position AAU3902 Hardware Descriptio...

Страница 7: ...AAU Engineering Specifications 17 2 7 Optical Modules 18 3 AAU Cables 20 3 1 List of AAU Cables 21 3 2 AAU PGND Cable 22 3 3 AAU Power Cable 22 3 4 CPRI Fiber Optic Cable 23 3 5 Optional Cascading CPRI Fiber Optic Cable 27 3 6 Feeder 27 3 7 AISG Multi Wire Cable 28 3 8 AISG Extension Cable 29 AAU3902 Hardware Description Contents Issue 06 2014 07 30 Huawei Proprietary and Confidential Copyright Hu...

Страница 8: ...ng the two RF ports on the PU22 module to the bottom of the AU 05 2014 04 20 This is the fifth commercial release Compared with Issue 04 2014 03 14 this issue does not include any new topic and does not exclude any topic Compared with Issue 04 2014 03 14 this issue includes the following change Topic Change Description 2 5 AAU RET System l Modified the numbers of RCU serial number l Optimized desc...

Страница 9: ...he section title as well as the contents as follows Removed all contents except engineering specifications in the original section AAU Technical Specifications and provided links to other contents l Added descriptions about the weight of an AAU that is configured with two RUs l Added descriptions about the weight of the handles decorating plates and mounting kits 02 2013 11 28 This is the second c...

Страница 10: ...wing change Topic Change Description 2 2 AAU Function Added the AAU logical structure and the function descriptions of each module in an AAU Compared with Draft A 2013 07 30 this issue does not exclude any topic Draft A 2013 07 30 This is a draft AAU3902 Hardware Description 1 Changes in AAU3902 Hardware Description Issue 06 2014 07 30 Huawei Proprietary and Confidential Copyright Huawei Technolog...

Страница 11: ...escribes ports and indicators on an AAU 2 5 AAU RET System The remote electrical tilt RET system of an AAU consists of the remote control unit RCU motor gearing and phase shifter In the RET system the RCU is used to remotely adjust the downtilts of AU beams 2 6 AAU Engineering Specifications This section describes engineering specifications of an AAU including input power and equipment specificati...

Страница 12: ... management unit on an active antenna shortened to MU l Active Antenna Radio Unit AARU the radio unit on an active antenna shortened to RU l Active Antenna Cover Unit AACU the cover unit on an active antenna shortened to CU An AAU can use any of the following compositions l One MU and two RUs l One MU one RU and one CU The following figure shows the second composition as an example AAU3902 Hardwar...

Страница 13: ... of an AAU is performed by the functional modules in it The following figure shows the logical structure of an AAU AAU3902 Hardware Description 2 AAU Introduction Issue 06 2014 07 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 6 ...

Страница 14: ... conversion ADC On the TX channel it filters signals performs digital to analog conversion DAC and up converts the RF signals to the TX band l Multiplexes RX signals and TX signals to enable these signals to share the same antenna path and filters RX and TX signals l Transmits or receives radio waves and forms beams The following table describes functional modules of an AAU AAU3902 Hardware Descri...

Страница 15: ...and management of the RUs See illustration MU in Figure 2 3 RU l On the RX channel down converts RF signals into IF signals amplifies them and performs ADC l On the TX channel filters signals performs DAC and up converts the RF signals to the TX band l Multiplexes RX signals and TX signals on the RF channel l Provides active antenna calibration and compensation and parameter configuration l Exchan...

Страница 16: ...The two optional slots are occupied by an RU and a CU respectively as shown in Figure 2 6 l The DBS3900 V100R007C00 and DBS3900 V100R008C01 only support the typical configuration in which an RU44 2 1G is installed in slot 1 l The DBS3900 V100R008C00 supports both the typical and maximum configurations The RU44 1 8G configured Slot 1 RU or CU l The RU model is RU44 2 1G l The CU model is CU 1 Optio...

Страница 17: ...V100R009C00 and later versions support both the typical and maximum configurations The RU44 1 8G configured in slot 3 supports GL dual mode or LTE FDD mode NOTE The filler panel in slot 2 is integrated with the antenna and cannot be removed Figure 2 5 Maximum configuration of an AAU AAU3902 Hardware Description 2 AAU Introduction Issue 06 2014 07 30 Huawei Proprietary and Confidential Copyright Hu...

Страница 18: ...owing figure shows ports and indicators on an AAU Figure 2 7 Ports and indicators on an AAU 1 RU indicators 2 MU indicators 3 AU ports 4 MU ports The following table describes ports on the AAU panel AAU3902 Hardware Description 2 AAU Introduction Issue 06 2014 07 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 11 ...

Страница 19: ...cal electrical port 0 RX TX CPRI1 Optical electrical port 1 PWR 48 V DC power supply port The following table describes indicators on an AAU Table 2 3 Indicators Item Silkscre en Color Status Description RU indicator s RUN Green Steady on There is power supply but the module is faulty Steady off There is no power supply or the module is faulty Blinking on for 1s and off for 1s The module is functi...

Страница 20: ...nd off for 1s The module is functioning properly Blinking on for 0 125s and off for 0 125s Software is being loaded to the module or the module is not started ALM Red Steady on Alarms are generated and the module must be replaced Steady off No alarm is generated Blinking on for 1s and off for 1s Alarms are generated The alarms may be caused by the faults on the related modules or ports Therefore y...

Страница 21: ...m configuration to locate the cause Steady off The SFP module is not properly installed or the optical module is powered off 2 5 AAU RET System The remote electrical tilt RET system of an AAU consists of the remote control unit RCU motor gearing and phase shifter In the RET system the RCU is used to remotely adjust the downtilts of AU beams RET Function After a remote control unit RCU receives the...

Страница 22: ...rray supports only internal control mode l The two passive AU arrays support both internal and external control modes l In external control mode the RET port does not support OOK signals Therefore if OOK signals are transmitted an SBT must be installed to separate OOK signals from the combined signals and convert the OOK signals to RS485 signals RCU Serial Numbers on an AAU The following figure sh...

Страница 23: ...used to represent the last two digits of a year For example characters 1 to 9 are used to represent the last two digits of the years 2001 to 2009 respectively The 26 letters from A to Z are used to represent the years starting from 2010 The letter A represents 2010 and the subsequent letters represent the years following 2010 Month 1 It represents the month in which the product is produced Hexadec...

Страница 24: ...ity on logical RCUs when links are established on them Only one AISG link can be established for an RCU serial number If a link needs to be switched you must delete the configuration on the link so that the link can be released l Once the RCU link is established the RCU serial number is not displayed in the scanning result of other RET ports 2 6 AAU Engineering Specifications This section describe...

Страница 25: ...s H x W x D l AU 2000 mm x 350 mm x 197 mm 78 74 in x 13 78 in x 7 76 in excluding the attachment plate l RU 416 mm x 310 mm x 132 mm 16 38 in x 12 2 in x 5 2 in l CU 416 mm x 310 mm x 112 mm 16 38 in x 12 2 in x 4 41 in l MU 205 mm x 310 mm x 113 mm 8 07 in x 12 2 in x 4 45 in Weight l AU 33 5 kg 73 87 lb excluding the attachment plate l RU 10 9 kg 24 03 lb l CU 2 4 kg 5 29 lb l MU 3 4 kg 7 5 lb ...

Страница 26: ... following figure Figure 2 12 Label on an optical module 1 Rate 2 Wavelength 3 Transmission mode Optical Module Type Optical modules can be divided into single and multimode optical modules which can be distinguished as follows l The puller of a single mode optical module is blue and the puller of a multimode optical module is black or gray l The transmission mode is displayed as SM on the label o...

Страница 27: ...s are classified into multimode fiber optic cables and single mode fiber optic cables They transmit CPRI signals 3 6 Feeder A feeder connects an RRU and an AAU and transmits signals between the base station and the antenna system 3 7 AISG Multi Wire Cable An AISG multi wire cable connects an RRU and an AAU to transmit control signals from a base station to an RET antenna When the RRU is connected ...

Страница 28: ...I port on the BBU 3 5 Optional Cascading CPRI Fiber Optic Cable DLC connector CPRI1 port on the AAU DLC connector CPRI0 port on the AAU Feeder optional or delivered with other equipment DIN male connector 1710 2690 or 1710 2690 port on the AAU 790 960 or 790 960 port on the AAU DIN male connector ANT port on the RRU AISG Multi Wire Cable DB9 waterproof male connector RET port on the RRU Standard A...

Страница 29: ...cable feeds external 48 V DC power into an AAU The maximum length of an AAU power cable between the AAU and its power supply is 100 m 328 08 ft NOTE If the power equipment is provided by the customer l When a single RU is configured circuit breakers of 20 A are recommended for the power equipment l When two RUs are configured circuit breakers of 30 A are recommended for the power equipment Exterio...

Страница 30: ...ibution frame ODF The maximum length of the single mode pigtail on the BBU side is 20 m 65 62 ft and the maximum length of the single mode pigtail on the AAU side is 70 m 229 66 ft NOTE l The ODF and trunk single mode fiber optic cable are provided by the customer and must comply with the ITU T G 652 standard l The ODF is an outdoor transfer box for fiber optic cables which interconnects the singl...

Страница 31: ... the connection of the multimode fiber optic cable between a BBU and an AAU Figure 3 4 Connection of the multimode fiber optic cable between a BBU and an AAU 1 Multimode fiber optic cable between a BBU and an AAU 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 the following figure AAU3902 Hardware Description 3 AA...

Страница 32: ...When a single mode pigtail connects an ODF and an AAU the breakout cables on the AAU side and ODF side are 30 mm 1 19 in and 800 mm 31 5 in respectively The following figure shows the connection of the single mode pigtail Figure 3 6 Connection of the single mode pigtail 1 Single mode pigtail between a BBU and an ODF 2 Single mode pigtail between an AAU and an ODF AAU3902 Hardware Description 3 AAU...

Страница 33: ... ODF Greater than 150 m 492 12 ft Single mode fiber optic cable single mode pigtail and trunk single mode fiber optic cable Pin Assignment The following table describes the labels on breakout cables of a CPRI fiber optic cable and recommended connections of the breakout cables Table 3 4 Labels on and recommended connections for the breakout cables of a CPRI fiber optic cable Label Installation Pos...

Страница 34: ...e fiber optic cable is used l A cascading CPRI fiber optic cable must be connected to the optical module in a CPRI port A multimode fiber optic cable and single mode fiber optic cable are connected to a multimode optical module and single mode optical module respectively Exterior The following figure shows the exterior of a cascading CPRI fiber optic cable Figure 3 7 Cascading CPRI fiber optic cab...

Страница 35: ...he phase shifter in the RET antenna It receives control commands from a base station and runs commands to drive the stepper motor Using a gear the stepper motor drives the adjustable phase shifter in the antenna to change the downtilt of the antenna Exterior The following figure shows the exterior of an AISG multi wire cable Figure 3 9 Exterior of an AISG Multi wire cable 1 Waterproof DB9 male con...

Страница 36: ...ected GND 3 8 AISG Extension Cable When the distance between an RRU and an AAU is longer than 5 m 16 4 ft an AISG multi wire cable is not long enough to connect the RRU and the AAU In this case an AISG extension cable is used to extend the AISG multi wire cable An AISG extension cable is 15 m 49 21 ft Exterior The following figure shows the exterior of an AISG extension cable Figure 3 10 Exterior ...

Страница 37: ...e Connector Color Wire Description X1 1 X2 1 White and blue Twisted pair 12 V Blue X1 7 X2 7 White and orange Twisted pair DC Return A Orange X1 3 X2 3 White and green Twisted pair RS485 B X1 5 X2 5 Green RS485 A X1 6 X2 6 White and brown Twisted pair 24 V Brown AAU3902 Hardware Description 3 AAU Cables Issue 06 2014 07 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 30...

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