Table 5-16
DIP switch on the UELP
DIP
Switch
Bit Status
Description
1
2
3
4
S1
OFF
OFF
OFF
OFF
Not grounded
Other status
Grounded
NOTE
The 75-ohm E1 cable can be either grounded or not grounded, whereas the 120-ohm E1 cable and the 100-
ohm T1 cable cannot be grounded.
5.8.4 UFLP
The universal FE/GE lightning protection (UFLP) board is a universal FE surge protection unit,
each UFLP supports 2-way FE surge protection.
Panel
shows the panel of the UFLP.
Figure 5-18
Panel of the UFLP
Ports
describes the ports on the panel of the UFLP.
Table 5-17
Ports on the panel of the UFLP
Port Location
Label
Connector Type
Description
INSIDE side
FE0, FE1
RJ-45
Connected to the
board for
transmission in the
base station
OUTSIDE side
FE0, FE1
RJ-45
Connected to the
external
transmission
devices
5 Auxiliary Devices of the BBU3900
BBU3900
Hardware Description
5-22
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 11 (2010-11-10)
Содержание BBU3900
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