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Summary of Contents for Huawei RRU3942
- Page 1 RRU3942 Hardware Description Issue Date 2012-06-29 HUAWEI TECHNOLOGIES CO., LTD.
- Page 2 All other trademarks and trade names mentioned in this document are the property of their respective holders. Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope.
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Page 3: About This Document
About This Document Purpose This document provides reference for planning and deploying an RRU3942 (referred to as RRU in this document). It presents the exterior and describes the ports, functions, cable types, connector specifications, and cable connections of the RRU. - Page 4 For example, log in as user root. Italic Book titles are in italics. Courier New Examples of information displayed on the screen are in Courier New. Command Conventions Issue 02 (2012-06-29) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
- Page 5 Press the keys in turn. For example, pressing Alt, A means the two keys should be pressed in turn. Mouse Operations The mouse operations that may be found in this document are defined as follows. Issue 02 (2012-06-29) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
- Page 6 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. Issue 02 (2012-06-29) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
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Page 7: Table Of Contents
RRU3942 Hardware Description Contents Contents About This Document........................ii 1 Changes in the RRU3942 Hardware Description..............1 2 RRU Introduction..........................2 2.1 RRU Functions..............................3 2.2 RRU Exterior..............................3 2.3 RRU Ports................................4 2.4 RRU Indicators..............................9 3 RRU Cables...........................11 3.1 RRU Cable List..............................13 3.2 RRU PGND Cable............................15 3.3 RRU Power Cable............................16... -
Page 8: Changes In The Rru3942 Hardware Description
1 Changes in the RRU3942 Hardware Description Changes in the RRU3942 Hardware Description This chapter describes the changes in the RRU3942 Hardware Description. 02 (2012-06-29) This is the second official release. Compared with issue 01 (2012-04-25), this issue does not include any new information. -
Page 9: Rru Introduction
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. Issue 02 (2012-06-29) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd. -
Page 10: Rru Functions
2.2 RRU Exterior This section describes the exterior and dimensions of an RRU. Figure 2-1 shows an RRU. Figure 2-1 RRU exterior Figure 2-2 shows RRU dimensions. Issue 02 (2012-06-29) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd. -
Page 11: Rru Ports
This section describes ports on 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. Issue 02 (2012-06-29) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd. - Page 12 Table 2-1 Ports and indicators 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 Issue 02 (2012-06-29) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
- Page 13 Number Usage Remark Channe of Used RF Ports l DBS3900 1*2T2R ANT_TX/RXA works with A single V100R004C00 ANT_TX/RXB. sector l DBS3900 GSM V100R013C00 l DBS3900 WCDMA V200R013C00 Issue 02 (2012-06-29) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
- Page 14 ANT_RXC and ANT_TX/ RXB works with ANT_RXD . Figure 2-4 shows the recommended usage of the RF ports on an RRU3942 used for DBS3900 V100R004C00, DBS3900 GSM V100R013C00 and DBS3900 WCDMA V200R013C00. Issue 02 (2012-06-29) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
- Page 15 V100R013C00 and DBS3900 WCDMA V200R013C00 Figure 2-5 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...
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Page 16: Rru Indicators
Software is being loaded to the module, or 0.125s and off for the module is not started. 0.125s) Steady on An alarm is generated, and the module must be replaced. Issue 02 (2012-06-29) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd. - Page 17 CPRI ports. Steady off The optical module cannot be detected, or the CPRI cable is not connected properly. Issue 02 (2012-06-29) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
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Page 18: Rru Cables
RET antenna. When 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.). 3.9 RRU AISG Extension Cable Issue 02 (2012-06-29) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd. - Page 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.). Issue 02 (2012-06-29) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
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Page 20: Rru Cable List
EPU One of LOAD0 to LOAD5 ports on the DCDU-11B 3.4 RRU DB15 male EXT_ALM Cord end External alarm Alarm Cable connector port on the terminal device Issue 02 (2012-06-29) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd. - Page 21 CPRI port on the LBBP in the BBU 3.6 RRU RF DIN male ANT_TX/ DIN male Antenna system Jumper connector RXA or connector ANT_TX/ RXB port on the RRU Issue 02 (2012-06-29) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
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Page 22: Rru Pgnd Cable
One OT terminal must be added to each end of the PGND cable onsite. l You can determine the color of the cable and whether to use corresponding two-hole OT terminals based on local regulations. Issue 02 (2012-06-29) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd. -
Page 23: Rru Power Cable
DC power input cable. Table 3-2 Pin assignment for the wires of a DC power input cable (North American Standards) Wire Color NEG(-) Blue RTN(+) Black Issue 02 (2012-06-29) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd. -
Page 24: Rru Alarm Cable
Table 3-4 Pin assignment for the wires of an RRU alarm cable Pin of the Color Type Cord End Description Alarm DB15 Terminal Port Male Connecto X1.2 White and Twisted SWITCH_INPUT0+ contact blue pair Issue 02 (2012-06-29) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd. -
Page 25: Cpri Fiber Optic Cable
RRUs. Exterior Figure 3-5 shows a fiber optic cable between a BBU and an RRU or between RRUs, with a DLC connector at each end. Issue 02 (2012-06-29) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd. - Page 26 Figure 3-7 Single-mode fiber optic cable between a BBU and an ODF or between an ODF and an RRU (1) DLC connector (2) Branch optical fiber (3) Label on the branch optical fiber (4) FC connector Issue 02 (2012-06-29) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
- Page 27 BBU and an RRU Label Connected To CPRI RX port on the RRU CPRI TX port on the RRU TX port on the BBU RX port on the BBU Issue 02 (2012-06-29) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
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Page 28: Rru Rf Jumper
An RF jumper has a DIN male connector at one end and a customized connector at the other end. Figure 3-9 shows an RF jumper with a DIN male connector at each end. Issue 02 (2012-06-29) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd. -
Page 29: Inter-Rru Rf Cable
An AISG multi-wire cable has a waterproofed DB9 male connector at one end and a standard AISG female connector at the other end, as shown in Figure 3-11. Issue 02 (2012-06-29) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd. -
Page 30: 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 connect the RRU and the RCU. In this case, an AISG extension Issue 02 (2012-06-29) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd. - Page 31 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 Issue 02 (2012-06-29) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
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Page 32: Rru Auxiliary Devices
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. Issue 02 (2012-06-29) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd. -
Page 33: Ocb
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. Issue 02 (2012-06-29) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.