DBS3900 V100R005C00 RRU3252/RRU3256 Hardware Description Issue Draft A Date 2012-11-30 HUAWEI TECHNOLOGIES CO., LTD.
Copyright © Huawei Technologies Co., Ltd. 2012. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent 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.
DBS3900 RRU3252/RRU3256 Hardware Description About This Document About This Document Purpose This document provides reference for planning and deploying an RRU3252/RRU3256 (referred to as RRU in this document). It presents the exterior and describes the ports, functions, cable types, connector specifications, and cable connections of the RRU. Product Version The following table lists the product version related to this document.
DBS3900 RRU3252/RRU3256 Hardware Description About This Document 4 RRU Auxiliary Devices This chapter describes remote radio unit (RRU) auxiliary devices. Conventions Symbol Conventions The symbols that may be found in this document are defined as follows. Symbol Description Indicates a hazard with a high level of risk, which if not avoided, will result in death or serious injury. Indicates a hazard with a medium or low level of risk, which if not avoided, could result in minor or moderate injury.
DBS3900 RRU3252/RRU3256 Hardware Description About This Document Convention Description Italic Command arguments are in italics. [] Items (keywords or arguments) in brackets [ ] are optional. { x | y | ... } Optional items are grouped in braces and separated by vertical bars. One item is selected. [ x | y | ... ] Optional items are grouped in brackets and separated by vertical bars. One item is selected or no item is selected. { x | y | ...
DBS3900 RRU3252/RRU3256 Hardware Description About This Document 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. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
DBS3900 RRU3252/RRU3256 Hardware Description Contents Contents About This Document.....................................................................................................................ii 1 Change History..............................................................................................................................1 2 RRU Introduction..........................................................................................................................2 2.1 RRU Exterior......
DBS3900 RRU3252/RRU3256 Hardware Description 1 Change History 1 Change History This chapter describes changes in the RRU3252/RRU3256 Hardware Description. Draft A (2012-11-30) This is a draft. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
DBS3900 RRU3252/RRU3256 Hardware Description 2 RRU Introduction 2 RRU Introduction About This Chapter This chapter describes the RRU. The RRU performs the following functions: l Exchanges baseband data with a BBU. l Receives RF signals from the antenna system, converts the received signals into IF signals, amplifies the IF signals, and performs analog-to-digital conversion.
DBS3900 RRU3252/RRU3256 Hardware Description 2 RRU Introduction 2.1 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. Figure 2-2 RRU dimensions Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
DBS3900 RRU3252/RRU3256 Hardware Description 2 RRU Introduction 2.2 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. Figure 2-3 Ports on the RRU panels Table 2-1 describes ports and indicators on the RRU panels. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
DBS3900 RRU3252/RRU3256 Hardware Description 2 RRU Introduction Table 2-1 Ports and indicators on the RRU panels Item Label Description (1) Ports at the bottom ANT0-ANT3 TX/RX ports. ANT0 port supports RET signal transmission. RET/EXT_ALM Communication port for the RET antenna or port for alarm reporting, supporting RET signal transmission RGPS RGPS port, which is optional.
DBS3900 RRU3252/RRU3256 Hardware Description Label ALM ACT VSWR CPRI0/ IR0 CPRI1/ IR1 Issue Draft A (2012-11-30) Color Red Green Red Red or green Red or green 2 RRU Introduction Status Description Blinking on for 1s and off for 1s The module is working properly. Blinking on for 0.125s and off for 0.125s Software is being loaded to the module, or the module is not started. Steady on Alarms are generated, and the module must be replaced. Steady off No alarm is generated.
DBS3900 RRU3252/RRU3256 Hardware Description Label Issue Draft A (2012-11-30) Color 2 RRU Introduction Status Description Blinking red on for 1s and off for 1s The CPRI link is out of lock possibly because of mutual lock of dual-mode clock sources or mismatched data rates over CPRI ports. (You are advised to check the system configuration to rectify the fault.) Steady off The SFP module is not properly installed, or the optical module is powered off.
DBS3900 RRU3252/RRU3256 Hardware Description 3 RRU Cables 3 RRU Cables About This Chapter This chapter describes RRU cables. 3.1 RRU Cable List This section describes RRU cable connections. 3.2 RRU PGND Cable An RRU PGND cable connects an RRU and a ground bar, ensuring the proper grounding of the RRU. 3.3 RRU Power Cable An RRU power cable is a -48 V DC shielded cable. It feeds -48 V DC power into an RRU. 3.
DBS3900 RRU3252/RRU3256 Hardware Description 3 RRU Cables 3.10 RRU AISG Extension Cable This section describes the remote radio unit (RRU) AISG extension cable. When the distance between an RRU and a remote control unit (RCU) is longer than 5 m, an AISG multi-wire cable is not long enough to connect the RRU and the RCU. In this case, an AISG extension cable is used to extend the AISG multi-wire cable for transmitting RS485 signals.
DBS3900 RRU3252/RRU3256 Hardware Description 3 RRU Cables 3.1 RRU Cable List This section describes RRU cable connections. Table 3-1 lists RRU cables. Table 3-1 RRU cables Cable One End The Other End Connector Connected to... Connector Connected to... 3.2 RRU PGND Cable OT terminal (M6) Ground terminal on the RRU OT terminal (M8) Ground terminal on the ground bar 3.
DBS3900 RRU3252/RRU3256 Hardware Description Cable 3 RRU Cables One End The Other End Connector Connected to... Connector Connected to... 3.4 RRU Alarm Cable (optional) Waterproofed DB9 male connector RET/ EXT_ALM port on the RRU Cord end terminal External alarm device 3.
DBS3900 RRU3252/RRU3256 Hardware Description 3 RRU Cables 3.3 RRU Power Cable An RRU power cable is a -48 V DC shielded cable. It feeds -48 V DC power into an RRU. Exterior An RRU power cable has an easy power receptacle (pressfit type) connector at one end and bare wires at the other end. Proper terminals are added to the bare wires based on the connector on the external power device, as shown in Figure 3-2. The cross-sectional area of an RRU power cable can be either 3.3 mm2 (0.005 in.2)/5.3 mm2 (0.
DBS3900 RRU3252/RRU3256 Hardware Description 3 RRU Cables Exterior An alarm cable has a DB9 connector at one end and eight cord end terminals at the other end, as shown in Figure 3-3. Figure 3-3 RRU alarm cable (1) DB9 waterproof connector (2) Cord end terminal Pin Assignment Table 3-4 describes the pin assignment for the wires of an RRU alarm cable.
DBS3900 RRU3252/RRU3256 Hardware Description 3 RRU Cables 3.5 CPRI Fiber Optic Cable CPRI fiber optic cables are classified into multi-mode fiber optic cables and single-mode fiber optic cables. They transmit CPRI signals. NOTE 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.
DBS3900 RRU3252/RRU3256 Hardware Description 3 RRU Cables Figure 3-5 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 3-6 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.
DBS3900 RRU3252/RRU3256 Hardware Description 3 RRU Cables Figure 3-7 Connections for a single-mode fiber optic cable between a BBU and an ODF or between an ODF and an RRU (1) Single-mode CPRI fiber optic cable between a BBU (2) Single-mode CPRI fiber optic cable between an and an ODF ODF and an RRU NOTE A CPRI fiber optic cable must be connected to optical modules in the CPRI ports.
DBS3900 RRU3252/RRU3256 Hardware Description 3 RRU Cables Label Connected To 2A CPRI TX port on RRU 0 2B CPRI RX port on RRU 0 Table 3-7 Labels on and recommended connections for optical fibers of a single-mode optical assembly between a BBU and an ODF or between an ODF and an RRU Label Connected To 1A RX port on the BBU or CPRI RX port on the RRU 1B TX port on the BBU or CPRI TX port on the RRU 2A ODF 2B ODF 3.6 RGPS Jumper A PGPS jumper connects a RGPS antenna to an RRU.
DBS3900 RRU3252/RRU3256 Hardware Description 3 RRU Cables Table 3-8 Pin assignment for the wires of the RGPS jumper X1 (Pin for the DB15 Waterproof Connector) X2 (Pin for the Round 12-pin Connector) Color X1.1 X2.9 White and blue X1.6 X2.1 Blue X1.14 X2.5 White and orange X1.13 X2.4 Orange X1.12 X2.3 White and green X1.11 X2.2 Green X1.2 X2.11 White and brown X1.7 X2.
DBS3900 RRU3252/RRU3256 Hardware Description 3 RRU Cables Exterior An RF jumper has a Type N male connector at both ends, as shown in Figure 3-10. Figure 3-10 RF jumper (1) Type N male connector 3.9 RRU AISG Multi-Wire Cable This section describes a remote radio unit (RRU) AISG multi-wire cable with the length of 5 m. It connects an RRU and a remote control unit (RCU) to transmit control signals from an eNodeB to the remote electrical tilt (RET) antenna.
DBS3900 RRU3252/RRU3256 Hardware Description 3 RRU Cables Pin Assignment Table 3-9 describes the pin assignment for the core wires of an AISG multi-wire cable. Table 3-9 Pin assignment for the core wires of an AISG multi-wire cable X1 End (Pin of the Waterproofed DB9 Male Connector) X1.1 X2 End (Pin of the Standard AISG Female Connector) Color of the Core Wire X2.1 White and blue Blue Type of the Core Wire Twisted pair Description +12 V X1.3 X2.3 White and orange X1.5 X2.5 Orange X1.4 X2.
DBS3900 RRU3252/RRU3256 Hardware Description 3 RRU Cables Figure 3-12 AISG extension cable 1. Standard AISG male connector 2. Standard AISG female connector Pin Assignment Table 3-10 describes the pin assignment for the core wires of an AISG extension cable. Table 3-10 Pin assignment for the core 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 of the Core Wire Type of the Core Wire Description X1.1 X2.
DBS3900 RRU3252/RRU3256 Hardware Description 4 RRU Auxiliary Devices 4 RRU Auxiliary Devices About This Chapter This chapter describes remote radio unit (RRU) auxiliary devices. 4.1 IFS06 An Indoor Floor installation Support (IFS06) is used for installing indoor RRUs. 4.2 OCB An Outdoor Cable Conversion Box (OCB) interconnects cables of different core diameters. Power cables shipped with RRUs cannot support long-distance power supply.
DBS3900 RRU3252/RRU3256 Hardware Description 4 RRU Auxiliary Devices 4.1 IFS06 An Indoor Floor installation Support (IFS06) is used for installing indoor RRUs. Exterior Figure 4-1 shows an IFS06. Figure 4-1 IFS06 Function l It can be installed on the ground. l The upper and lower adjustable beams on an IFS06 can be moved up and down to fit for heights of RRUs.
DBS3900 RRU3252/RRU3256 Hardware Description 4 RRU Auxiliary Devices Figure 4-2 IFS06 structure (1) Upper adjustable beam (2) Main frame (3) Lower adjustable beam (4) Front foot (5) Rear foot (6) Cable tray Specifications Table 4-1 describes IFS06 specifications. Table 4-1 IFS06 specifications Item Specification Dimensions 1730 mm (79 in.) x 600 mm (23.62 in.) x 600 mm (23.62 in.) (H x W x D) Weight 45 kg (99.23 lb) 4.
DBS3900 RRU3252/RRU3256 Hardware Description 4 RRU Auxiliary Devices Application Scenario of an OCB Figure 4-3 shows the application scenario of an OCB. Figure 4-3 Application scenario of an OCB For details about the structure, functions, installation, and maintenance of an OCB, see the OCB User Guide. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
