Allied Telesis AT-8516F/SC Installation Manual page 29

Table 2 LEDs for the 10/100Base-TX Twisted Pair Ports on the
AT-8524M, AT-8550GB, and AT-8550SP Switches
LED State
Mode - FULL OFF
(AT-8524M)
Green
MODE - FDX OFF
AT-8550GB
and
Green
AT-8550SP)
Mode - ACT OFF
Flashing
Green
Table 3 describes the LEDs for the 10/100/1000Base-TX twisted pair
ports, Ports 49R and 50R, on the AT-8550GB and AT-8550SP switches.
Table 3 LEDs for Ports 49R and 50R on the AT-8550GB and AT-8550SP
LED State
LINK OFF
Green
Mode - COL OFF
Flashing
Green
Mode - SPD OFF
Green
AT-8500 Series Fast Ethernet Switch Installation Guide
Description
Indicates that the port is operating in half-
duplex mode.
Indicates that the port is operating in full-
duplex mode.
Indicates that the port is operating in half-
duplex mode.
Indicates that the port is operating in full-
duplex mode.
Indicates that there is no activity on the
port.
Indicates that the port is transmitting and/
or receiving data packets.
Switches
Description
Indicates that there is no link between the
port and the end node.
Indicates a valid link has been established
between the port and the end node.
Indicates that no data collisions are
occurring on the port.
Indicates that data collisions are occurring
on the port.
Indicates that the port is operating at 10 or
100 Mbps.
Indicates that the port is operating at 1000
Mbps.
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