Allied Telesis AT-S62 User Manual
Page 86
Chapter 3: Basic Switch Commands
86
Section I: Basic Operations
Fan# - The fan number. The system has five cooling fans. Fans 1 to 4
are managed by the fan control feature. Fan 5 operates at its highest
possible speed at all times.
RPM - The current speed of the fan in revolutions per minute (RPM).
The highest speed is approximately 11,000 RPM for fans 1 to 4 and
6,500 RPM for fan 5. RPM is displayed in increments of 100.
% - The speed of the fan as a percentage of its highest possible
operating speed.
Status - A status message.
Temperature - The ambient air temperature measured where the air
enters the cooling vents of the switch.
PoE Current Load - The total current load of the PoE devices.
The minimum operating speed for a fan is 4,000 RPM. A fan falling below
or unable to attain that speed is considered as failed.
If a fan in a switch fails when the fan control feature is activated, the switch
proportionally increases the speed of the remaining operational fans to
compensate for the loss of the failed fan.
Example
The following command displays fan control information:
show system fancontrol