Table 3-27 Leds On The Tod Port; Table 3-28 Ports On The Uscu - Huawei BBU3900 Hardware Description

BBU3900
Hardware Description

Table 3-27 LEDs on the TOD port

Color
Green
Yellow
Ports
Table 3-28

Table 3-28 Ports on the USCU

Port
GPS port
RGPS port
TOD0 port
TOD1 port
BITS port
M-1PPS port
Issue 11 (2010-11-10)
Meaning
On: The TOD port is
configured as the input
port.
Off: The TOD port is
configured as the output
port.
describes the ports on the USCU.
Connector
SMA coaxial
connector
PCB welded
wiring terminal
RJ-45 connector
RJ-45 connector
SMA coaxial
connector
SMA coaxial
connector
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Copyright © Huawei Technologies Co., Ltd.
Default Configuration
The green LED of the TOD0 port is off,
and the yellow LED of the TOD0 port is
on.
The yellow LED of the TOD1 port is off,
and the green LED of the TOD1 port is on.
Description
Receives GPS signals
Receives RGPS signals
Receives or transmits 1PPS+TOD signals
Receives or transmits 1PPS+TOD signals, and
receives TOD signals from the M1000
Receives BITS clock signals, and supports adaptive
input of 2.048 MHz and 10 MHz clock reference
source
Receives 1PPS signals from the M1000
3 BBU3900 Equipment
3-25