5.8.5 USLP2
The Universal Signal Lightning Protection Unit Type 2 (USLP2) is a dry contact surge protection
unit. It is optional and can be installed in the SLPU.
Panel
shows the panel of the USLP2.
Figure 5-19
Panel of the USLP2
Port
There are four output ports and two input ports on the USLP2.
lists the ports on the
panel of the USLP2.
Table 5-18
Ports on the panel of the USLP2
Label
Port Type
Quantity
Description
IN0, IN1, IN2,
and IN3
4-pin
4
Input ports used to
connect the customized
alarm devices.
OUT0, OUT1
RJ45
2
Output ports used to
connect the EXT-ALM
port of the UEIU or
UPEU in the cabinet.
shows the mapping relationship between the pins in the input and output ports on
the USLP2.
Figure 5-20
Mapping relationship between the pins in the input and output ports on the USLP2
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
8
6
4
2
7
5
3
1
8
6
4
2
7
5
3
1
IN0
IN1
IN2
IN3
OUT0
OUT1
lists the mapping relationship between the pins in the input and output ports on the
USLP2.
BBU3900
Hardware Description
5 Auxiliary Devices of the BBU3900
Issue 11 (2010-11-10)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
5-23
Summary of Contents for BBU3900
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