Specifications

26 AT-9800 Series Switch
C613-03059-00 REV E
Troubleshooting
This section provides information on how to detect and resolve problems with
AT-9800 Series switches and their expansion options.
Other sources of useful troubleshooting information are:
■ www.alliedtelesyn.co.nz/support/9800/.
■ The AT-9800 Series Software Reference.
LEDs and What They Mean
The following tables outline how LEDs on AT-9800 switches report faults and
operational activities.
System LEDs
Table 12: System LEDs found on all AT-9800 Series Switches.
LED State Function
PWR
(Power)
Green The switch is receiving power
Fault Red The switch or management software is
malfunctioning
1 Flash A switch fan has failed or is operating below
the recommended speed
2 Flashes If RPS monitoring is enabled, an RPS fan has
failed or is operating below the recommended
speed
3 Flashes If an RPS is connected, the switch’s PSU (Power
Supply Unit) has failed
4 Flashes If RPS monitoring is enabled, the RPS PSU has
failed
5 Flashes If RPS monitoring is enabled, an RPS is not
connected or is not operational
6 Flashes The temperature sensor located immediately
adjacent to the switch chip has exceeded the
recommended threshold of 60 degrees Celsius
RPS (Redundant
Power Supply)
Green An RPS is connected to the switch and is
receiving power
CompactFlash
Activity
(Rear panel)
Green The compact flash memory is active. Do not
eject the flash memory module