Table 4-31
LEDs on the TOD port
Color
Meaning
Default Configuration
Green
On: The TOD port is
configured as the input
port.
The green LED of the TOD0 port is off,
and the yellow LED of the TOD0 port is
on.
Yellow
Off: The TOD port is
configured as the output
port.
The yellow LED of the TOD1 port is off,
and the green LED of the TOD1 port is on.
Ports
describes the ports on the USCU.
Table 4-32
Ports on the USCU
Port
Connector
Description
GPS port
SMA coaxial
connector
Receives GPS signals
RGPS port
PCB welded
wiring terminal
Receives RGPS signals
TOD0 port
RJ-45 connector
Receives or transmits 1PPS+TOD signals
TOD1 port
RJ-45 connector
Receives or transmits 1PPS+TOD signals, and
receives TOD signals from the M1000
BITS port
SMA coaxial
connector
Receives BITS clock signals, and supports adaptive
input of 2.048 MHz and 10 MHz clock reference
source
M-1PPS port
SMA coaxial
connector
Receives 1PPS signals from the M1000
UTRP
This describes the Universal Transmission Processing unit (UTRP) board. As the transmission
extension board of the BBU3900, the UTRP provides eight E1s/T1s, one unchannelized STM-1/
OC-3 port, four electrical ports, or two optical ports.
Specification
describes the specifications of the UTRP.
BTS3900
Hardware Description
4 BTS3900 Components
Issue 04 (2011-02-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
4-31