Allied Telesis AT-8600 Series Switch - Manual (Page 17)

16 AT-8600 Series Switch
Link and Mode LEDs for the AT-8624PoE switch
LED State Description
L/A Status
(Top LED) OFF There is no link between the port
and the end-node.
Green The port is operating at 100 Mbps.
Flashing Green There is activity on the port. It is
transmitting and/or receiving data
at 100 Mbps.
Red The port is operating at 10 Mbps.
Flashing Red There is activity on the port. It is
transmitting and/or receiving data
at 10 Mbps.
Mode LEDs
(Bottom LED) OFF Either DC Mode or PoE Mode.
D/C Mode OFF There is no link between the port
and the end-node.
Green The port is operating in full duplex
mode.
Red The port is operating in half-duplex
mode.
Flashing Red The port is operating in half-duplex
mode and data collisions are
occurring on the port.
PoE Mode OFF There is no powered device
detected.
Green The end-node is a powered device
and the port is providing power to
it.
Red The port is experiencing a problem
providing PoE to the end-node.
Flashing Red The port is connected to a
powered device but providing
power to it would exceed the
maximum PoE power budget of the
switch.