Silkscreen Color Status Description
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.
On for 0.125s and off
for 0.125s
The OML is disconnected.
Besides the preceding three indicators, there are some other indicators on the board, indicating
the connection status of the FE optical port, FE electrical port, CPRI port, and commissioning
port. They are near the corresponding ports and have no silkscreen. Table 3-32 describes the
indicators.
Table 3-32 Indicators for ports
Indicator Color Status Description
LIU0 to LIU3 Green Steady on An E1/T1 local alarm
is generated.
On for 1s and off for
1s
An E1/T1 remote
alarm is generated.
Steady off The link is
functional.
CPRI0 to CPRI5 Red or green Steady green The CPRI link is
functioning properly.
Steady red An optical module
fails to receive or
transmit signals
because of the
following reasons:
l The optical
module is faulty.
l The fiber optic
cable is broken.
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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