Allied Telesis AT-8000S (Layer 2) - Manual (Page 17)

Product Description
Port LEDs
Page 17
The stacking LED indications are described in the following table:
Port LEDs
10/100 Base-T Fast Ethernet RJ-45 Port LEDs
The following figure illustrates the port LEDs.
Figure 13: 10/100Base-T Fast Ethernet RJ-45 Port LEDs
Table 2: Stacking LED Indications
LED Description LED Indication Description
All LEDs off The device is operating as a standalone switch.
S1
Green
The device is master-enabled, and is either the master or backup
of the stack, which is determined by the master election
algorithm.
S2
Green
The device is master-enabled, and is either the master or backup
of the stack, which is determined by the master election
algorithm.
S3 Green The device is operating as Stack Member 3 in the stack.
S4 Green The device is operating as Stack Member 4 in the stack.
S5 Green The device is operating as Stack Member 5 in the stack.
S6 Green The device is operating as Stack Member 6 in the stack.