Allied Telesis AT-8550SP - Manual (Page 31)

AT-8500 Series Fast Ethernet Switch Installation Guide
31
Mode - DC OFF Indicates that the port has not established
a valid link with its end node.
Steady
Green Indicates that the port is operating in full
duplex mode.
Steady
Amber Indicates that the port is operating in half
duplex mode.
Flashing
Amber Indicates that the port is operating in half
duplex mode and that data collisions are
occurring on the port.
Mode - POE OFF Indicates that the device connected to the
port is not a powered device and does not
require PoE.
Green Indicates that the end node is a powered
device and that the port is providing
power to it.
Steady
Amber Indicates that the port experienced a
problem providing PoE to the end node.
For further information, refer to Chapter 3,
Troubleshooting on page 72.
Flashing
Amber Indicates that the port is connected to a
powered device but that providing power
to it would exceed the maximum PoE
power budget of the switch. For further
information, refer to Chapter 3,
Troubleshooting on page 72.
Table 4 LEDs for the 10/100Base-TX Twisted Pair Ports on the
AT-8524POE Switch
LED State Description