Install guide

Quick Install Guide 17
Fault Red The switch or management software is
malfunctioning.
1 Flash One or more heatsink fans has failed or is
operating below the recommended speed.
6 Flashes
a
The switch’s temperature has exceeded the
recommended threshold.
Slow
flashing at
startup
The SDRAM (DIMM) has not been detected.
Rapid
flashing at
startup
The SDRAM (DIMM) is not compatible with
the switch.
CF Green The CompactFlash memory is active. Do not
eject the flash memory module.
a. If the switch exceeds the temperature alarm threshold the fault LED will flash six times,
turn off for a short period, and then repeat the flashing sequence.
Table 1-2: LEDs on the AT-PWR01 and AT-FAN01
LED State Function
Fault Red There is either a fan failure, or the
temperature has exceeded the limit of 70º C
(158º F).
PWR Green A PSU is installed in the switch and is receiving
power. A FOM does not have this LED.
Table 1-1: System LEDs on all AT-9900 Series switches (Continued)
LED State Function
9900qig.fm Page 17 Thursday, September 2, 2004 9:41 AM