Figure 3-28 LBBPd panel
NOTE
The LBBPd1, LBBPd2, and LBBPd3 have silkscreens LBBPd1, LBBPd2, and LBBPd3 indicating their
board types on the lower left corner of the board panel, respectively.
Functions
The LBBP performs the following functions:
l Processes uplink and downlink baseband signals.
l Provides CPRI ports for communication with RF modules.
Indicators
On the LBBP panel, there are three indicators, as described in Table 3-50.
Table 3-50 Indicators on the LBBP panel
Silkscreen
Color Status Description
RUN Green Steady on There is power supply, but the
board is faulty.
Steady off There is no power supply, or the
board is faulty.
On for 1s and off for 1s The board is functioning
properly.
On for 0.125s and off for
0.125s
l The board is being loaded or
configured.
l The board is not started.
ALM Red Steady on An alarm is generated, and the
board must be replaced.
Steady off The board is running properly.
On for 1s and off for 1s An alarm is generated, and you
need to locate the fault before
deciding whether to replace the
board.
ACT Green Steady on The board serves as an active
board.
BTS3900C (Ver.C)
Hardware Description 3 BTS3900C Modules
Issue 03 (2013-05-27) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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