Allied Telesis x900 Series Switch - Handbuch (Seite 14)

x900 Series Switch
14
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.
3 Flashes For AT-9900, AT-9924Ts, and x900-24X switches, the
ability to monitor temperature and fans has failed, and
it cannot report whether they are in the supported
ranges. After flashing three times, the LED stops briefly,
then repeats the sequence.
6 Flashes The switch’s temperature has exceeded the
recommended threshold. After flashing six times, the
LED stops briefly, then repeats the sequence.
Slow
flashing at
startup The SDRAM (DIMM) has not been detected. Not
applicable to AT-9924Ts or x900-24X switches.
Rapid
flashing at
startup The SDRAM (DIMM) is not compatible with the switch.
Not applicable to AT-9924Ts or x900-24X switches.
CF Green
flashing The CompactFlash memory card is active and should
not be ejected. The card can be safely ejected when the
LED remains off. Valid for AT-8948, x900-48FE, and
AT-9900 switches.
SD Green
flashing The Secure Digital memory card is active and should
not be ejected. The card can be safely ejected when the
LED remains off. Valid for AT-9924Ts and x900-24X
switches.
Table 2: LEDs on the power supply unit and fan-only module
LED State Description
Fault Red The temperature on the PSU has exceeded the limit of
75º C (167º F), or the fan failed.
PWR Green A PSU is installed in the switch and is receiving power. A
FOM does not have this LED.
Table 1: System LEDs (Continued)
LED State Description