Allied Telesis x600-24Ts-POE manual State, Description

Chapter 1: Overview

		Table 7. STACK LEDs
LED	State	Description
MSTR	Off	The switch is not part of a stack or is a member
		unit of the stack.
	Solid	The switch is the master unit of the stack.
	Green
1 L/A	Off	STACK Port 1 has not established a link to a
		stacking port on another AT-StackXG Stacking
		Module.
	Solid	STACK Port 1 has established a link to a
	Green	stacking port on another AT-StackXG Stacking
		Module.
	Flashing	STACK Port 1 has established a link to a
	Green	stacking port on another AT-StackXG Stacking
		Module and is sending or receiving packet
		traffic.
2 L/A	Off	STACK Port 2 has not established a link to a
		stacking port on another AT-StackXG Stacking
		Module.
	Solid	STACK Port 2 has established a link to a
	Green	stacking port on another AT-StackXG Stacking
		Module.
	Flashing	STACK Port 2 has established a link to a
	Green	stacking port on another AT-StackXG Stacking
		Module and is sending or receiving packet
		traffic.
PRES1	Off	The expansion slot for the AT-StackXG
		Stacking Module is empty.
	Solid	The AT-StackXG Stacking Module is installed
	Green	in the switch.

1.The PRES LED is not available on the x600-24/Ts-POE because the stacking ports are permanently installed on its rear panel.

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