Allied Telesis AlliedView-EMS 4.0.1 DEVICE MANAGEMENT - Manual (Page 184)

AT-x900-48FS
Device Manager LEDs for the AT-x900-48 Series
LED State Description
PWR 1 and
PWR 2
Green
Gray
There is a power supply unit (PSU) in the PSU bay.
There is no power supply unit (PSU) in the PSU bay.
FAN Green
Gray
There is a functioning Fan Only Module (FOM) in the PSU bay.
There is no functioning Fan Only Module (FOM) in the PSU bay.
DUPLEX Green
Orange
The port is operating at full duplex.
The port is operating at half duplex.
Note
- The current firmware version does not allow Device Manager to display the correct
image for SFP module 'AT-SPFXBD-LC-13'. As a result, the SFP image that will be displayed
is the generic SFP Fiber image.
Note - When a single PSU is installed, it is advised to install it in the device's PSU Bay 2 in
order for the Device Manager to display correct information on the Fan and Power Supply
modules.
AlliedView™-EMS 4.0.1 Device Management Guide Page 184 of 411