M900/M1800 BTS3X Series Base Transceiver Station
Hardware Description Manual
3 Board
Issue 01 (2006-11-18)
Huawei Technologies Proprietary
3-25
Figure 3-18
EDU front panel
TX/RX_ANTA
RXD_ANTB
RXA1
RXA2
RXB1
RXB2
MS/TX_TEST A
POWER
VSWR A
VSWR B
TTA
LNA
TXA
TXB
EDU_BUS
DC-IN
+26V
EDU
MS/TX_TEST B
lists detailed information about indicators on EDU front panel.
Table 3-14
EDU indicators
ID
Color Meaning
Indication
POWER
Green
Power supply indicator
ON: EDU is powered on.
OFF: EDU is powered off.
VSWRA Red
Transmitting channel A VSWR
alarm indicator
OFF: No alarm
ON or flashing: Transmitting
channel B VSWR alarm
VSWRB Red
Transmitting channel B VSWR
alarm indicator
OFF: No alarm
ON or flashing: Transmitting
channel B VSWR alarm
TMA
Red
Tower amplifier warning
indicator
OFF: No alarm
ON: TMA alarm