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AT-9400 Series Gigabit Ethernet Switches Installation Guide
37
System LEDs
The system LEDs on the front panel display general status information, as
described in Table 6.
Table 6 System LEDs
LED State Description
FAULT or
FLT
Off Normal operation.
Solid
Red
The switch or management software has
malfunctioned. (Refer to Chapter 3,
“Troubleshooting” on page 67 for instructions
on how to troubleshoot a problem.)
Flashing
Red
The switch is saving its configuration or is
downloading a new version of the AT-S63
Management Software.
MASTER
or MSTR
Off The switch has an enhanced stacking status of
slave or unavailable.
Green The switch has an enhanced stacking status of
master.
RPS Off No optional redundant power supply is
connected to the switch.
Green An optional redundant power supply is
physically connected to the switch and may be
powered on or off.
POWER
or PWR
Off The switch is not receiving power.
Green The switch is receiving power.