Huawei RRU3908 V2, Hardware Description

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RRU Cables
About This Chapter
The RRU cables consist of the PGND cable, power cable, CPRI optical cable, RRU RF cable,
alarm cable, AISG multi-wire cable, and AISG extension cable.
3.1 RRU3908 Cable List
The RRU3908 cables are the PGND cable, power cable, CPRI optical cable, RF jumper,
interconnection jumper, alarm cable, AISG multi-wire cable, and AISG extension cable.
3.2 RRU PGND Cable
The PGND cable ensures the grounding of the RRU.
3.3 Power Cable for the DC RRU
The RRU power cable is the -48 V DC shielded power cable, which is used to feed the -48 V
DC power into the RRU.
3.4 AC Power Cable for the AC RRU
The AC power cable feeds AC power from external equipment to the AC RRU.
3.5 Monitoring Signal Cable for the AC RRU
The monitoring signal cable for the AC RRU feeds power to the AC RRU and monitors the
running status of the RRU.
3.6 CPRI Optical Cable
The CPRI optical cable transmits CPRI signals between the BBU and the RRU or between RRUs.
3.7 Alarm Cable for the DC RRU
The alarm cable for the RRU is a shielded straight-through cable. The cable transmits alarm
signals from the external equipment to the DC RRU and monitors the external equipment.
3.8 RF Jumper for the RRU
The 1/2-inch RF jumper is used for the RRU. It transmits and receives RF signals between the
RRU and antenna.
3.9 Interconnect Jumper for the RRU
The interconnect jumper for the RRU connects the RX_IN/OUT ports of two RRUs, and
transmits the RF signals between the RRUs in the same cell.
3.10 AISG Multi-Wire Cable for the RRU
RRU3908 V2
Hardware Description
3 RRU Cables
Issue 02 (2010-10-25) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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