Indicator
Color
Status
Description
Green (ACT
indicator on the right
side)
Blinking
Data is being
transmitted or
received.
Steady off
No data is being
transmitted or
received.
M_S (on the
GTMUb)
-
-
This is the indicator
for the reserved port.
EXT (on the
GTMUb)
-
-
This is the indicator
for the reserved port.
Ports
describes the ports on the GTMU.
Table 3-33
Ports on the GTMU
Silkscreen
Connector
Description
CPRI0 to CPRI5 SFP female
connector
Data transmission port interconnected to the RF
module. It supports the input and output of optical
and electrical transmission signals.
EXT (on the
GTMUb)
SFP female
connector
Reserved
ETH
(1)
RJ45 connector
Local maintenance and commissioning port
FE0
RJ45 connector
Connected to the routers in the equipment room
through FE cables to transmit network
information
FE1
DLC connector
Connected to the routers in the equipment room
through fiber optic cables to transmit network
information
TST
(2)
USB connector
Providing reference clock for the test instruments
USB
(3)
USB connector
Used for automatic software upgrade through the
USB flash drive
E1/T1
DB26 female
connector
Used for four E1/T1 inputs and outputs between
the GTMU and the UELP or between BSCs
RST
-
Used for resetting the GTMU
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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