Huawei BBU3900 - Figure 5-19 Panel of the USLP2; Figure 5-20 Mapping Relationship between the Pins in the Input and Output Ports on the USLP2; Table 5-18 Ports on the Panel of the USLP2; Uslp2

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
Figure 5-19 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. Table 5-18 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.
Figure 5-20 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
34 1
2
34 1
2
34 1
2
34
8
6
42
7531
8
6
42
7531
IN0 IN1 IN2 IN3
OUT0 OUT1
Table 5-19 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.
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