Ports
Table 5-15
Ports of the UELP
Label
Connector
Description
INSIDE
DB25 connector
Connected to the board for
transmission in the base station
OUTSIDE
DB26 connector
Connected to the external
transmission devices
DIP Switch
The UELP has one DIP switch, which is used to determine whether the receiving end is grounded.
The DIP switch has four DIP bits.
shows the DIP switch on the UELP.
Figure 5-17
DIP switch on the UELP
describes the DIP switch on the UELP.
BBU3900
Hardware Description
5 Auxiliary Devices of the BBU3900
Issue 11 (2010-11-10)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
5-21
Summary of Contents for BBU3900
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