Allied Telesis Switch AT-SBXPWRSYS1 User Manual download pdf (Page 210)

Chapter 9: Troubleshooting

210

AT-SBxFAN12 Fan Module

The AT-SBxFAN12 Fan Module is operating correctly when the POWER

LED on the module is solid green. If the LED on the fan module is off,

check the FAN LED in the SYS STATUS section on the active master

control card. The LED should be green. If the FAN LED is off or flashing

amber, one or more fans in the module are no longer operating properly.

You may also view the status of the unit with the SHOW FANMODULE

command in the management software.

You may notice changes in the fan speeds. This is normal. The active

master control card automatically adjusts the fan speeds according to the

internal temperature of the chassis.

Note

The AT-SBxFAN12 Fan Module is hot swappable. You do not have

to power off the AT-SBx3112 Chassis to replace the module.

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Allied Telesis Switch AT-SBXPWRSYS1 User Manual Page 210