Aau Cables - Huawei AAU3902 Hardware Description

AAU3902
Hardware Description
About This Chapter
This chapter describes the cables connected to an AAU.
3.1 List of AAU Cables
The cable list provides reference for cable installation and replacement.
3.2 AAU PGND Cable
A PGND cable connects an AAU and a ground bar for proper grounding of the AAU. The
maximum length of an AAU PGND cable is 8 m (26.25 ft).
3.3 AAU Power Cable
An AAU power 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).
3.4 CPRI Fiber Optic Cable
CPRI fiber optic cables are classified into multimode fiber optic cables and single-mode fiber
optic cables. They transmit CPRI signals.
3.5 (Optional) Cascading CPRI Fiber Optic Cable
Cascading CPRI fiber optic cables 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 to the RET antenna, an AISG multi-
wire cable transmits RS485 signals. The length of an AISG multi-wire cable is 5 m (16.40 ft).
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).
Issue 06 (2014-07-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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AAU Cables

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