User guide

x900 Series Switch and SwitchBlade
®
x908
20
POE
PSU 1
and
PSU 2
Green The PSU is installed and supplying power. Voltage
output, fan speed, and operating temperature are
within specification. Valid for the SwitchBlade x908
switch.
Red The voltage output is not within specification, a fan
has failed or the PSU has exceeded its recommended
temperature threshold. Valid for the
SwitchBlade x908 switch.
Fault Red The switch or management software is
malfunctioning.
Red flashing The following flash sequences indicate a hardware-
related fault. After sequences of two or more flashes,
the LED stops briefly, then repeats the sequence. If
multiple faults occur, the LED flashes each sequence in
turn, stops briefly, then repeats the sequences.
1 Flash One or more heatsink fans has failed or is operating
below the recommended speed.
2 Flashes For SwitchBlade x908 switches, one or both of the
chassis fans are not installed, or the fans are operating
below the recommended speed.
3 Flashes For AT-9924T, AT-9924SP, AT-9924Ts, x900-24XT,
x900-24XT-N, and x900-24XS switches, the ability to
monitor temperature and fans has failed, and it cannot
report whether they are in the supported ranges.
4 Flashes For switches running the AlliedWare Plus operating
system, a XEM failed to initialise or is incompatible.
6 Flashes The switch’s temperature has exceeded the
recommended threshold.
Slow
flashing at
startup
The SDRAM (DIMM) has not been detected. Does
not apply to AT-9924Ts, x900-12XT/S, x900-24XT,
x900-24XT-N, x900-24XS, and SwitchBlade x908
switches.
Rapid
flashing at
startup
The SDRAM (DIMM) is not compatible with the
switch. Does not apply to AT-9924Ts, x900-12XT/S,
x900-24XT, x900-24XT-N, x900-24XS, and
SwitchBlade x908 switches.
LED State Description (cont)