Huawei RRU3908 V2 - Alarm Cable for the DC RRU; Table 3-9 Labels and Recommended Connections for the Branch Cables of the Multi-Mode Optical Cable between; Table 3-10 Labels and Recommended Connections for the Branch Cables of the Multi-Mode Optical Cable between; Table 3-11 Labels and Recommended Connections for the Branch Cables of the Single-Mode Optical Cable and

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Pin Assignment

Table 3-9, Table 3-10, and Table 3-11 describe the labels and recommended connections for

the branch cables of the CRPI optical cable.

Table 3-9 Labels and recommended connections for the branch cables of the multi-mode optical

cable between the BBU and RRU

Label Color Installation Position

1A Orange CPRI RX port on the RRU

1B Gray CPRI TX port on the RRU

2A Orange TX port on the BBU

2B Gray RX port on the BBU

Table 3-10 Labels and recommended connections for the branch cables of the multi-mode

optical cable between RRUs

Label Color Installation Position

1A Orange CPRI RX port on the RRU 1

1B Gray CPRI TX port on the RRU 1

2A Orange CPRI TX port on the RRU 0

2B Gray CPRI RX port on the RRU 0

Table 3-11 Labels and recommended connections for the branch cables of the single-mode

optical cable and recommended connections

Label

Color Installation Position

1A Yellow RX port on the BBU or CPRI RX port

on the RRU

1B Blue TX port on the BBU or CPRI TX port on

the RRU

2A Yellow ODF

2B Blue ODF

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.

RRU3908 V2

Hardware Description 3 RRU Cables

Issue 02 (2010-10-25) Huawei Proprietary and Confidential

3-11

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