Huawei BBU3910 - Fan

LTE TDD
BBU3900&BBU3910 Description
1 Overview
Issue 01 (2018-02-05)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
16

Transmits information reported by the environment monitoring device and alarm
information to the main control board.
Ports
Table 1-13 shows the ports on the UEIU.
Table 1-13 Ports on the UEIU
Label Connector Number of
Ports
Description
EXT-ALM0 RJ45 1 Receives Boolean signal inputs 0 to 3
EXT-ALM1 RJ45 1 Receives Boolean signal inputs 4 to 7
MON0 RJ45 1 Receives RS485 signal input 0
MON1 RJ45 1 Receives RS485 signal input 1
1.3.11 FAN
There are two fan unit types for the BBU3900: FAN and FANc. And the FANd is a fan unit
for the BBU3910..
Panel
Figure 1-23 shows the panel of the FAN.
Figure 1-23 FAN panel
Figure 1-24 shows the panel of the FANc.