Huawei BBU3900 Hardware Description page 58

4 BBU3900 Cables
The FE/GE surge protection transfer cable is an optional cable that connects the main control
board to the UFLP.
4.9 FE/GE Optical Cable
The FE/GE optical cable is used to transmit optical signals between the BBU3900 and the
transmission device. This cable is optional.
4.10 CPRI Optical Cable
The CPRI optical cable transmits CPRI signals between the BBU and the RRU or between RRUs.
4.11 Monitoring Signal Cable Between the APMI and the BBU
This describes the monitoring signal cable between the APMI and the BBU. It transmits the
environment monitoring signals of the power cabinet to the BBU.
4.12 Monitoring Signal Cable for the Transmission Cabinet
The monitoring signal cable for the transmission cabinet is used to connect the alarm ports of
the APMI, DCDU, and door status sensor to the BBU.
4.13 Monitoring Signal Cable Between the HEUA and the BBU
The monitoring signal cable between the HEUA and the BBU transmits the monitoring
information collected by the HEUA to the BBU.
4.14 EMUA Monitoring Signal Cable
This section describes the EMUA monitoring signal cable. It transmits monitoring signals from
the EMUA to the BBU. This cable is delivered with the EMUA.
4.15 Monitoring Signal Cable Between the CMUA and the BBU
The monitoring signal cable between the CMUA and the BBU connects the CMUA to the BBU
and transmits the monitoring signals collected by the CMUA to the BBU.
4.16 BBU Alarm Cable
The BBU alarm cable transmits alarm signals from an external alarm device to the BBU.
4.17 GPS Clock Signal Cable
The GPS clock signal cable is an optional cable that transmits GPS clock signals from the GPS
antenna system to the BBU. The GPS clock signals serve as the clock reference of the BBU.
4-2 Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
BBU3900
Hardware Description
Issue 11 (2010-11-10)