Allied Telesis AT-8500 Series manual Twisted Pair Port LEDs LED Mode Select Button

AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide

LEDs

Twisted Pair Port

LEDs and the

LED Mode Select

Button

This section provides information on the LEDs found on the AT-8500 Series switches:

ˆ“Twisted Pair Port LEDs and the LED Mode Select Button,” next

ˆ“Fiber Optic Port LEDs” on page 34

ˆ“GBIC and SFP Expansion Slot LEDs” on page 35

ˆ“System LEDs” on page 36

This section applies to the AT-8524M, AT-8524POE, AT-8550GB, and AT-8550SP switches.

The port LEDs on the front panel display port status information. Each port has two LEDs. One of the LEDs displays the status of the link between a port and its end node. The second LED, labeled MODE, displays a variety of status information, depending on the switch model. You use the Mode Select button on the front panel to toggle the Mode LEDs to display different status information. The LEDs next to the Mode Select button indicate the status being displayed by the port Mode LEDs.

Note

Toggling the Mode Selection button does not affect the normal operations of the switch.

Table 4 describes the LEDs for the 10/100Base-TX twisted pair ports on the AT-8524M, AT-8550GB, and AT-8550SP switches.

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

AT-8524M, 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
	Green	on the port.

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