Allied Telesis AT-8400 Series Reference Manual page 40

Fast Ethernet and Gigabit Ethernet Line Cards
LED
RDY
L/A
D/C
26
Twisted-pair Port LEDs
The twisted-pair port LEDs are defined in Table 11.
Table 11 AT-8413 GB/T Twisted-pair Port LEDs
State Description
Steady Green Indicates the line card is receiving power and is
ready to pass traffic.
Off Indicates the port has not established a valid link
with its end node.
Steady Amber Indicates the port has established a 10 or 100
Mbps link with the end node.
Flashing Amber Indicates data activity on the port,
Steady Green Indicates the port has established a 1,000 Mbps
link with the end node.
Flashing Green Indicates data activity on the port.
Steady Green Indicates the port is operating in full-duplex.
Steady Amber Indicates the port is operating in half-duplex.
Flashing Amber Indicates collisions are occurring on the port.