Allied Telesis SwitchBlade x3106 - Manual (Page 250)

Chapter 10: Replacing Modules
250
Note
Perform steps 5 to 7 to enable the new fan module if you disabled
the old module with the DISABLE FANMODULE command prior to
removing it.
5. Start a management session on the chassis. For instructions, refer to
“Starting a Local Management Session” on page 198.
6. At the command prompt, enter the ENABLE FANMODULE command
to enable the module.
7. Log off to end your management session.