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Figure 2-4

Recommended usage of the RF ports for DBS3900 V100R004C00, DBS3900 GSM

V100R013C00 and DBS3900 WCDMA V200R013C00

shows the recommended usage of the RF ports on an RRU3942 used for DBS3900

GSM V100R014C00 and later versions.

Figure 2-5

Recommended usage of the RF ports for DBS3900 GSM V100R014C00 and later

versions

shows the recommended usage of the RF ports on an RRU3942 used for DBS3900

V100R007C00 and later versions, DBS3900 WCDMA V200R014C00 and later versions,
DBS3900 LTE V100R005C00 and later versions.

RRU3942
Hardware Description

2 RRU Introduction

Issue 02 (2012-06-29)

Huawei Proprietary and Confidential

Copyright © Huawei Technologies Co., Ltd.

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Содержание RRU3942

Страница 1: ...RRU3942 Hardware Description Issue 02 Date 2012 06 29 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 ensu...

Страница 3: ...V100R004C00 and later versions DBS3900 GSM V100R013C00 and later versions DBS3900 WCDMA V200R013C00 and later versions DBS3900 LTE V100R005C00 and later versions Intended Audience This document is intended for l Base station installation engineers l System engineers l Site maintenance engineers Organization 1 Changes in the RRU3942 Hardware Description This chapter describes the changes in the RRU...

Страница 4: ...not avoided could result in equipment damage data loss performance degradation or unexpected results Indicates a tip that may help you solve a problem or save time Provides additional information to emphasize or supplement important points of the main text General Conventions The general conventions that may be found in this document are defined as follows Convention Description Times New Roman No...

Страница 5: ...conventions that may be found in this document are defined as follows Convention Description Boldface Buttons menus parameters tabs window and dialog titles are in boldface For example click OK Multi level menus are in boldface and separated by the signs For example choose File Create Folder Keyboard Operations The keyboard operations that may be found in this document are defined as follows Forma...

Страница 6: ... 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 RRU3942 Hardware Description About This Document Issue 02 2012 06 29 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd v ...

Страница 7: ...RRU Cable List 13 3 2 RRU PGND Cable 15 3 3 RRU Power Cable 16 3 4 RRU Alarm Cable 17 3 5 CPRI Fiber Optic Cable 18 3 6 RRU RF Jumper 21 3 7 Inter RRU RF Cable 22 3 8 RRU AISG Multi Wire Cable 22 3 9 RRU AISG Extension Cable 23 4 RRU Auxiliary Devices 25 4 1 OCB 26 RRU3942 Hardware Description Contents Issue 02 2012 06 29 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd vi ...

Страница 8: ...ormation of the cables 3 3 RRU Power Cable 3 7 Inter RRU RF Cable 3 8 RRU AISG Multi Wire Cable 3 9 RRU AISG Extension Cable 3 1 RRU Cable List Optimized the contents in this section Compared with issue 01 2012 04 25 no information is deleted from this issue 01 2012 04 25 This is the first official release Compared with draft A 2012 01 10 this issue does not include any modification Draft A 2012 0...

Страница 9: ... This section describes the exterior and dimensions of an RRU 2 3 RRU Ports This section describes ports on the RRU panels An RRU has a bottom panel cabling cavity panel and indicator panel 2 4 RRU Indicators This section describes six indicators on an RRU They indicate the running status RRU3942 Hardware Description 2 RRU Introduction Issue 02 2012 06 29 Huawei Proprietary and Confidential Copyri...

Страница 10: ... channel which enables these signals to share the same antenna path It also filters the RX and TX signals l Provides a built in Bias Tee BT The built in BT couples RF signals and OOK signals and transmits them through the TX RX port A The built in BT also supplies power to the tower mounted amplifier TMA l The RRU can be powered by the AC DC power module In this case this RRU is called AC RRU For ...

Страница 11: ...n the RRU panels An RRU has a bottom panel cabling cavity panel and indicator panel Figure 2 3 shows the ports on the RRU panels RRU3942 Hardware Description 2 RRU Introduction Issue 02 2012 06 29 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 4 ...

Страница 12: ...icators on the RRU panels Item Silkscreen Description 1 Ports at the bottom ANT_TX RXA TX RX port A supporting RET signal transmission ANT_RXC RX port C ANT_RXD Port RX port D RRU3942 Hardware Description 2 RRU Introduction Issue 02 2012 06 29 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 5 ...

Страница 13: ... For details see 2 4 RRU Indicators ALM ACT VSWR CPRI0 IR0 CPRI1 IR1 NOTE The RET ports to be used are determined by the software configuration Table 2 2 describes how to use RF ports Table 2 2 Usage Product Version TX RX Channe l Number of Used RF Ports Usage Remark l DBS3900 V100R004C00 l DBS3900 GSM V100R013C00 l DBS3900 WCDMA V200R013C00 1 2T2R 2 ANT_TX RXA works with ANT_TX RXB A single secto...

Страница 14: ... LTE V100R005C00 and later versions 1 1T2R 2 It is recommended that ANT_TX RXA works with ANT_RXC You can also use the ports in the following ways ANT_TX RXB works with ANT_RXD A single sector 1 2T2R 2 ANT_TX RXA works with ANT_TX RXB A single sector 1 2T4R 4 ANT_TX RXA ANT_RXC ANT_TX RXB and ANT_RXD work together A single sector 2 1T2R 4 ANT_TX RXA works with ANT_RXC and ANT_TX RXB works with ANT...

Страница 15: ...ns Figure 2 5 Recommended usage of the RF ports for DBS3900 GSM V100R014C00 and later versions Figure 2 6 shows the recommended usage of the RF ports on an RRU3942 used for DBS3900 V100R007C00 and later versions DBS3900 WCDMA V200R014C00 and later versions DBS3900 LTE V100R005C00 and later versions RRU3942 Hardware Description 2 RRU Introduction Issue 02 2012 06 29 Huawei Proprietary and Confident...

Страница 16: ...le 2 3 RRU indicators Silkscree n Color Status Description 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 board is running 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 An alarm is generated ...

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

Страница 18: ...ber Optic Cable CPRI fiber optic cables are classified into multi mode fiber optic cables and single mode fiber optic cables They transmit CPRI signals 3 6 RRU RF Jumper The 1 2 RRU RF jumper transmits and receives RF signals between an RRU and an antenna 3 7 Inter RRU RF Cable An inter RRU RF cable connects the RX_IN OUT ports on two RRUs in the same cell and transmits RF signals between the RRUs...

Страница 19: ... RRU and the RCU In this case an AISG extension cable is used to extend the AISG multi wire cable for transmitting RS485 signals The maximum length of the AISG extension cable is 15 m 49 21 ft RRU3942 Hardware Description 3 RRU Cables Issue 02 2012 06 29 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 12 ...

Страница 20: ...mm2 or 0 025 in 2 Ground terminal on the ground bar 3 3 RRU Power Cable Tool less female connector pressfit type NEG and RTN ports on the RRU Tool less female connector pressfit type One of RRU0 to RRU5 ports on the EPU One of LOAD0 to LOAD5 ports on the DCDU 11B 3 4 RRU Alarm Cable DB15 male connector EXT_ALM port on the RRU Cord end terminal External alarm device RRU3942 Hardware Description 3 R...

Страница 21: ...TS LTE UL mode CPRI port on the WBBP in the BBU CPRI port on the LBBP in the BBU 3 5 CPRI Fiber Optic Cable in single mode scenarios DLC connector CPRI0 port on the RRU DLC connector GSM only LO mode CPRI port on the GTMU in the BBU UMTS only LO mode CPRI port on the WBBP in the BBU LTE only LO mode CPRI port on the LBBP in the BBU 3 6 RRU RF Jumper DIN male connector ANT_TX RXA or ANT_TX RXB port...

Страница 22: ...ring the proper grounding of the RRU The maximum length of the RRU PGND cable is 30 m 98 42 ft Exterior An RRU PGND cable is green or green and yellow with a cross sectional area of 16 mm2 0 025 in 2 This cable has an OT terminal at each end Figure 3 1 shows an RRU PGND cable Figure 3 1 PGND cable 1 OT terminal M6 16 mm2 or 0 025 in 2 2 OT terminal M8 16 mm2 or 0 025 in 2 NOTE l If the customer pr...

Страница 23: ...nd The corresponding terminal is added to the bare wire based on the requirements of the connector on the external power device as shown in Figure 3 3 Figure 3 3 RRU power cable 1 48 V DC power cable 2 Shield layer 3 Tool less female connector pressfit type Pin Assignment The DC power input cable is a 2 wire cable Table 3 2 and Table 3 3 describe the pin assignment for the wires of a DC power inpu...

Страница 24: ...s a DB15 male connector at one end and eight cord end terminals at the other end as shown in Figure 3 4 Figure 3 4 Alarm cable 1 DB15 male connector 2 Cord end terminal Pin Assignment Table 3 4 describes the pin assignment for the wires of an RRU alarm cable Table 3 4 Pin assignment for the wires of an RRU alarm cable RRU Alarm Port Pin of the DB15 Male Connecto r Color Type Cord End Terminal Desc...

Страница 25: ...TE l An ODF can be used when the distance between a BBU and an RRU or the distance between interconnected RRUs is longer than 100 m 328 08 ft l A single mode fiber optic cable connects a BBU to an ODF or connects an ODF to an RRU The maximum length of a CPRI fiber optic cable is 150 m 492 12 ft When the fiber optical cable connects a BBU and an RRU The length of a CPRI fiber optic cable is 10 m 32...

Страница 26: ...ber optic cable between a BBU and an RRU Figure 3 6 Connections for a CPRI fiber optic cable between a BBU and an RRU 1 CPRI fiber optic cable between a BBU and an RRU Figure 3 7 shows a single mode fiber optic cable between a BBU and an ODF or between an ODF and an RRU with a DLC connector at one end and an FC connector at the other end Figure 3 7 Single mode fiber optic cable between a BBU and a...

Страница 27: ... and an ODF 2 Single mode CPRI fiber optic cable between an ODF and an RRU NOTE A CPRI fiber optic cable must be connected to optical modules in the CPRI ports A multi mode fiber optic cable and single mode fiber optic cable are connected to multi mode optical modules and single mode optical modules respectively Pin Assignment Table 3 5 Table 3 6 and Table 3 7 describe the labels on and recommende...

Страница 28: ... an antenna is within 14 m 45 93 ft connect one end of the RF jumper to the ANT TX RXA or ANT TX RXB port at the RRU bottom and connect the other end to the antenna l When the distance between the RRU and the antenna exceeds 14 m 45 93 ft connect one end of the RF jumper to the ANT TX RXA or ANT TX RXB port at the RRU bottom and connect the other end to the feeder Then connect the other end of the...

Страница 29: ...the RRU is connected to the RET antenna an AISG multi wire cable transmits RS485 signals The maximum length of the AISG multi wire cable is 5 m 16 40 ft NOTE An RCU is a driving motor used for the phase shifter in the RET antenna It receives control commands from a base station and runs the commands to drive the stepper motor Using a gear the stepper motor drives the adjustable phase shifter in th...

Страница 30: ... White and blue Twisted pair 12 V Blue X1 3 X2 3 White and orange Twisted pair RS485 B X1 5 X2 5 Orange RS485 A X1 4 X2 4 White and green GND X1 9 and X1 4 are interconnected GND X2 1 and X2 6 are interconnected 12 V X2 4 and X2 7 are interconnected GND 3 9 RRU AISG Extension Cable When the distance between an RRU and an RCU is longer than 5 m 16 4 ft an AISG multi wire cable is not long enough to...

Страница 31: ... 9 describes the pin assignment for the wires of an AISG extension cable Table 3 9 Pin assignment for the wires of an AISG extension cable X1 End Pin of the Standard AISG Male Connector X2 End Pin of the Standard AISG Female Connector Color Type 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 p...

Страница 32: ...ters Power cables shipped with RRUs cannot support long distance power supply Therefore when power supply is far from the equipment cables with large core diameters are used and an OCB connects these cables and RRU power cables RRU3942 Hardware Description 4 RRU Auxiliary Devices Issue 02 2012 06 29 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 25 ...

Страница 33: ...meters are used and an OCB connects these cables and RRU power cables Application Scenario of an OCB Figure 4 1 shows the application scenario of an OCB Figure 4 1 Application scenario of an OCB For details about the structure functions installation and maintenance of an OCB see the OCB User Guide RRU3942 Hardware Description 4 RRU Auxiliary Devices Issue 02 2012 06 29 Huawei Proprietary and Confi...

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