3 Board
M900/M1800 BTS3X Series Base Transceiver Station
Hardware Description Manual
3-18
Huawei Technologies Proprietary
Issue 01 (2006-11-18)
The indicators and port labels on various ECDU front panels have the same meanings.
lists detailed information about indicators on ECDU front panel.
Table 3-10
ECDU indicators
ID
Color
Meaning
Indication
POWER
Green
Power supply indicator
ON: ECDU is powered on.
OFF: ECDU is powered off.
VSWR1
Yellow
Level 1 VSWR alarm
indicator
OFF: No alarm
ON or flashing: Level 1 VSWR
alarm
VSWR2
Red
Level 2 VSWR alarm
indicator
OFF: No alarm
ON or flashing: Level 2 VSWR
alarm
TMA
Red
Tower amplifier warning
indicator
OFF: No alarm
ON: TMA alarm
LNA
Red
LNA warning indicator
OFF: No alarm
ON: LNA alarm
lists detailed information about ports on ECDU front panel.
Table 3-11
ECDU ports
ID
Connector
Type
Function
TX/RX-ANT N (Female)
RF signal transmitting/receiving antenna port
MS/TX-
TEST
SMA (Female)
Transmitting/receiving test port
TX1
N (Female)
The first transmitting signal input port (maximum
power: 60 W)
TX2
N (Female)
The second transmitting signal input port (maximum
power: 60 W)
RXD-ANT
N (Female)
RF signal diversity receiving antenna port
RXD-OUT
SMA (Female)
Diversity receiving output
RX1–4
SMA (Female)
The first RX divider output port 1–4
RXM-TEST
SMA (Female)
Main receiving test port
RX5–8
SMA (Female)
The second RX divider output port 5–8
RXD-TEST SMA
(Female) Diversity
receiving signal test port