6
LED Indicator:
LED indictor light on the front panel of IT-ES308-IU-4F .the
function of each LED is described in the table as below.
System indication LED
LED
State
Description
PWR1
ON
Power1 is being supplied to
OFF
Power1 is
not
being supplied
to
PWR2
ON
Power2 is being supplied to
OFF
Power2 is
not
being supplied
to
Alarm
ON
When the alarm is enabled,
power and the port’s link is
inactive.
OFF
Power and the port’s link is
active,
not
alarm
Run
ON
Common straight link mode
OFF
disable
Link/ACT 1~8
ON
TP port is active
Blinking
Data is being transmitted
OFF
TP port is inactive
Relay contact:
Relay access terminals located on the top panel, the terminal is a
