Comtrol ES9528-XT Quick Start - Manual (Page 5)

4
LED Name LED On LED Blinking LED Off
PWR (Power) Green: Power
available
No power
R.M. (Ring
Master)
Green: Working
Ring Master
Amber blinking:
Ring failed
Ring function not
enabled
LEDs 1-24
Link/Act
Duplex
Green:
Full-Duplex
Green: 100M
Yellow: 10M
Not connected
Half-Duplex
LEDs 25-28
Link/Act
Duplex
Green:
Full-Duplex
Green: 1000M
Yellow: 10M or
100M
Not connected
Half-Duplex
SFP Link
State
Green: On
Gray: Plugged in
but not linked up
Not connected