Allied Telesis Layer 3 Gigabit Ethernet Switch x600-24Ts-POE - Manual (Page 38)

Chapter 1: Overview
38
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
Green The switch is the master unit of the stack.
1 L/A Off STACK Port 1 has not established a link to a
stacking port on another AT-StackXG Stacking
Module.
Solid
Green STACK Port 1 has established a link to a
stacking port on another AT-StackXG Stacking
Module.
Flashing
Green STACK Port 1 has established a link to a
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
Green STACK Port 2 has established a link to a
stacking port on another AT-StackXG Stacking
Module.
Flashing
Green STACK Port 2 has established a link to a
stacking port on another AT-StackXG Stacking
Module and is sending or receiving packet
traffic.
PRES
1
1. The PRES LED is not available on the x600-24/Ts-POE
because the stacking ports are permanently installed on its rear
panel.
Off The expansion slot for the AT-StackXG
Stacking Module is empty.
Solid
Green The AT-StackXG Stacking Module is installed
in the switch.