Ueiu - Huawei BBU3900 Description

LTE TDD
BBU3900&BBU3910 Description
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Ports
The UPEUa , UPEUc and UPEUd both provide the same ports as described in Table 1-12
Table 1-12 Ports on the UPEU
Label
-48 V
EXT-ALM0
EXT-ALM1
MON0
MON1

1.3.10 UEIU

The UEIU is short for universal environment interface unit. It transmits information reported
by the environment monitoring device and alarm information to the main control board.
Panel
Figure 1-22 shows the panel of the UEIU.
Figure 1-22 UEIU panel
Functions
A UEIU performs the following functions:
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Issue 01 (2018-02-05)
Both the UPEUa and the UPEUc support two links of RS485 signals and eight links of
Boolean signals.
The UPEUd converts -48 V DC input power into +12 V DC and provides an output
power of 650 W.
Connector
3V3
RJ45
RJ45
RJ45
RJ45
Provides two links of RS485 signals.
Provides eight links of Boolean signals.
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Copyright © Huawei Technologies Co., Ltd.
Number of Description
Ports
1 Provides –48 V DC power input.
1 Receives Boolean signal inputs 0 to
3
1 Receives Boolean signal inputs 4 to
7
1 Receives RS485 signal input 0
1 Receives RS485 signal input 1
1 Overview
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