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For railway rolling stock applications,
AWK-3121 devices must
a galvanically isolated power supply
that is compliant with the
EN 50155 standard.
LED Indicators
The front panel of the Moxa AWK-3121 contains several LED indicators.
The function of each LED is described in the table below.
Front Panel LED Indicators (System)
PWR1 Green
On
Power is being supplied from power
input 1.
Off
Power is not being supplied from
power input 1.
PWR2 Green
On
Power is being supplied from power
Off
Power is not being supplied from
power input 2.
PoE Amber
Power is being supplied via PoE.
Power is not being supplied via PoE.
FAULT Red
Blink
(slow)
Cannot get an IP address from the
DHCP server (interval: 1 sec)
Blink
(fast)
IP address conflict (interval: 0.5 sec)
Off Error condition does not exist.
STATE
Green/Re
d
Green
Software Ready
Blink
The AWK has been located by AWK
Search Utility. (interval: 1sec)
(5 LEDs)
Green
(for Client mode only)
BRIDGE
MODE
Green
AWK functions in Bridge Mode.
Off AWK is not in Bridge Mode.
CLIENT
MODE
Green
On AWK functions in Client Mode.
Off AWK is not in Client Mode.
WLAN Amber
On WLAN is in used
Off WLAN is not in use
TP Port LED Indicators (Port Interface)
100M Green
TP port’s 100Mbps link is active.
Data is being transmitted at 100 Mbps
TP port’s 100Mbps link is inactive.
10M Yellow
TP port’s 10Mbps link is active.
Blink Data is being transmitted at 10 Mbps
Off TP port’s 10Mbps link is inactive.
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