Installation guide
Table Of Contents

- 13 -
LED Indicators
The front panel of Moxa EDS-518A contains several LED indicators. The
function of each LED is described in the following table:
LED Color State Description
On
Power is being supplied to power
input P1.
PWR1 AMBER
Off
Power is not being supplied to
power input P1.
On
Power is being supplied to power
input P2.
PWR2 AMBER
Off
Power is not being supplied to
power input P2.
On
When the corresponding PORT
alarm is enabled, and a
user-configured event is triggered.
FAULT RED
Off
When the corresponding PORT
alarm is enabled and a
user-configured event is not
triggered, or when the corresponding
PORT alarm is disabled.
On
When the EDS-518A is set as the
Master of the Turbo Ring, or as the
Head of the Turbo Chain.
Blinking
The EDS-518A has become the
Ring Master of the Turbo Ring, or
the Head of the Turbo Chain, after
the Turbo Ring or the Turbo Chain is
down.
MSTR/HEAD GREEN
Off
When the EDS-518A is not the
Master of this Turbo Ring or is set as
the Member of the Turbo Chain.
On
When the EDS-518A coupling
function is enabled to form a back-up
path, or when it's set as the Tail of
the Turbo Chain.
Blinking
When the Turbo Chain is down.
CPLR/TAIL GREEN
Off
When the EDS-518A disables the
coupling function.
On
TP port’s 10 Mbps link is active.
Blinking
Data is being transmitted at 10
Mbps.
10M
(TP)
GREEN
Off
TP port’s 10 Mbps link is inactive.
On
TP port’s 100 Mbps link is active.
Blinking
Data is being transmitted at 100
Mbps.
100M
(TP)
GREEN
Off
TP port’s 100 Mbps link is inactive.