Installation guide

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ATTENTION
For railway rolling stock applications,
AWK-3121 devices must
use
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.
LED
Color
State
Description
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
input 2.
Off
Power is not being supplied from
power input 2.
PoE Amber
On
Power is being supplied via PoE.
Off
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
Green
Blink
The AWK has been located by AWK
Search Utility. (interval: 1sec)
Red
Booting error condition
SIGNAL
(5 LEDs)
Green
On
Signal level
(for Client mode only)
Off
BRIDGE
MODE
Green
On
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
On
TP port’s 100Mbps link is active.
Blink
Data is being transmitted at 100 Mbps
Off
TP port’s 100Mbps link is inactive.
10M Yellow
On
TP port’s 10Mbps link is active.
Blink Data is being transmitted at 10 Mbps
Off TP port’s 10Mbps link is inactive.