Allied Telesis AT-8600 Hardware Reference Manual page 9

Hardware Reference
AT-8648T/2SP switch
Link and Mode LEDs
AT-8648T/2SP switch
10/100/1000Base-T
and SFP LEDs
AT-A45/xx Series
Expansion Module
LEDs
C613-03080-00 REV G
LED State
LINK OFF
Green
Mode - COL OFF
Flashing Green
Mode - SPD OFF
Green
Mode - FDX OFF
Green
Mode - ACT Flashing Green
OFF
LED State
LINK OFF
Green
Mode - COL OFF
Flashing Green
Mode - SPD OFF
Green
Mode - FDX OFF
Green
Mode - ACT Flashing Green
OFF
LED State
LINK Steady green
Flashing green
Duplex Steady green
Steady amber
Flashing amber
Description
There is no link between the port and the end-
node.
A valid link has been established between the
port and the end-node.
No data collisions are occurring on the port.
Data collisions are occurring on the port.
The port is operating at 10 Mbps.
The port is operating at 100 Mbps.
The port is operating in half-duplex mode.
The port is operating in full-duplex mode.
There is activity on the port
There is no activity on the port.
Description
There is no link between the port and the end-
node.
A valid link has been established between the
port and the end-node.
No data collisions are occurring on the port.
Data collisions are occurring on the port.
The port is operating at 10/100 Mbps.
The port is operating at 1000 Mbps.
The port is operating in half-duplex mode.
The port is operating in full-duplex mode.
There is activity on the port
There is no activity on the port.
Description
The port has established a valid link with the
end node.
The port is transmitting and/or receiving data.
The port is operating in full duplex.
The port is operating in half duplex.
Collisions are occurring on the port.
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