Allied Telesis AlliedView-EMS 4.0.3 Device-Management - Manual (Page 188)

AlliedView™-EMS 4.0.3 Device Management Guide Page 188 of 468
AT-8848
Device Manager LEDs for AT-8800 Series
LED State Description
PWR Green
Red
The switch is receiving power from the main power supply.
Main power supply is either off or has failed.
RPS Green
Red
Gray
The switch is receiving power from the redundant power supply.
RPS has failed.
RPS is not installed or RPS monitoring is disabled.
DUPLEX Green
Orange
Grey
The port is operating at full duplex.
The port is operating at half duplex.
There is no link over the port.
Note - To turn RPS monitoring on or off on the switch, enter the command SET SYSTEM
RPSMONITOR={ON|OFF} from the command line interface. To see whether RPS
monitoring is on, use the command SHOW SYSTEM. To turn on RPS monitoring using
SNMP, set the fanAndPsRpsMonitoringStatus variable to on.