Chapter 1: Overview

Table 4. LEDs for the 10/100Base-TX Twisted Pair Ports on the

AT-8524M, AT-8550GB, and AT-8550SP Switches (Continued)

LED

State

Description

 

 

 

 

 

 

Mode - 100

OFF

Indicates that the port is operating at 10

(AT-8524M)

 

Mbps.

 

 

 

 

Green

Indicates that the port is operating at 100

 

 

Mbps.

 

 

 

Mode - SPD

OFF

Indicates that the port is operating at 10

(AT-8550GB

 

Mbps.

and

 

 

Green

Indicates that the port is operating at 100

AT-8550SP)

 

Mbps.

 

 

 

 

 

Mode - FULL

OFF

Indicates that the port is operating in half-

(AT-8524M)

 

duplex mode.

 

 

 

 

Green

Indicates that the port is operating in full-

 

 

duplex mode.

 

 

 

MODE - FDX

OFF

Indicates that the port is operating in half-

AT-8550GB

 

duplex mode.

and

 

 

Green

Indicates that the port is operating in full-

AT-8550SP)

 

duplex mode.

 

 

 

 

 

Mode - ACT

OFF

Indicates that there is no activity on the port.

 

 

 

 

Flashing

Indicates that the port is transmitting and/or

 

Green

receiving data packets.

 

 

 

Table 5 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 5. LEDs for Ports 49R and 50R on the AT-8550GB and AT-8550SP

Switches

LED

State

Description

 

 

 

 

 

 

LINK

OFF

Indicates that there is no link between the

 

 

port and the end node.

 

 

 

 

Green

Indicates a valid link has been established

 

 

between the port and the end node.

 

 

 

Mode - COL

OFF

Indicates that no data collisions are occurring

 

 

on the port.

 

 

 

 

Flashing

Indicates that data collisions are occurring on

 

Green

the port.

 

 

 

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Allied Telesis AT-8500 Series manual Mode FDX OFF