Allied Telesis SwitchBlade 4000 Series Switch Hardware Reference - Manual (Page 49)

Hardware Reference 49
C613-03060-00 REV H
Power Supply LEDs
Each PSU has the following LEDs.
Table 15: LEDs on the AT-SB4441 8-port 1000BASE GBIC Line Card.
LED State Function
L/A
(Link/Activity)
Green A link is open
Flashing Green Activity is occurring
Amber The port is operating at half-duplex. The L/A
LED for port 1 briefly lights at switch power up
or when the card is hot swapped in
Flashing Amber Half-duplex activity is occurring
Off No link is present
GBIC Status Green A GBIC is installed and enabled
Amber A GBIC is installed but disabled
Flashing Amber A fault is occurring on the link
Off No GBIC is installed
Table 16: LEDs on the AT-SB4541 1-port 10GBASE-LR Line Card.
LED State Function
L/A
(Link/Activity)
Green A link is open
Flashing Green 10GE activity is occurring
Off No link is present
XFP Green An XFP is installed and enabled
Amber An XFP is installed, but disabled.
Flashing Amber An XFP is not ready, or faulty.
Off No XFP is installed
Table: 17 LEDs on AC and DC variants of the AT-SB4161 PSU .
LED State Function
DC Good Green The PSU is supplying power to the switch
Fan Good Green The PSU’s fan is functioning
Power Present Green The PSU is receiving power from its supply
circuit.