Figure 3-25 GTMUb panel
Functions
The GTMU performs the following functions:
l Controls, maintains, and operates the base station.
l Supports fault management, configuration management, performance management, and
security management.
l Monitors the fans and power modules.
l Provides and manages the clock of the base station in centralized mode.
l Provides the clock output for test.
l Provides a port for maintenance on the OM system.
l Supports the transmission of four paths of E1 signals and two paths of FE signals.
l Provides CPRI ports for communication between the BBU and the RFUs.
Indicators
Table 3-31 describes the indicators on the GTMU.
Table 3-31 Indicators on the GTMU
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 running properly.
On for 0.125s and off
for 0.125s
Software is being loaded to the
board.
ALM Red Steady on An alarm is generated, and the
board must be replaced.
Steady off There is no fault.
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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