Removing a power supply unit or fan – Allied Telesis Removable Power Supply and Fan User Manual
Page 20

Installation Guide
19
Removing a Power Supply Unit or Fan
Follow these instructions to remove a PSU, chassis fan module, FOM or blanking
plate.
Before you begin
■
Read the safety information for the switch.
Safety information is in the x900 Series Switch and SwitchBlade
®
x908
Installation and Safety Guide. You can download this document from
.
■
Gather necessary tools and equipment.
You will need an appropriate flat-bladed or Phillips (#1) screwdriver to tighten
or loosen the captive screws.
Caution Follow correct anti-static procedures. Failure to do so could
damage the PSU, fan, or switch. If you are unsure about correct procedures,
contact your authorised Allied Telesis distributor or reseller.
Caution Keep your hands and fingers out of the power supply bays.
To remove a PSU, chassis fan module or FOM
1.
If you are removing a PSU, disconnect the power supply.
For AC PSUs, turn off the main power source to the PSU and disconnect
the power cable.
For PWR01 DC PSUs, push and release the Run/Standby switch to the
Standby (off) position. The Run/Standby switch is in the Run (on) position
when it is depressed, and in the Standby (off) position when it is not
depressed. Disconnect the DC power supply then disconnect the supply
cable wires from the circuit breaker.
For PWR05 DC PSUs, slide the Run/Standby switch to the O (off) position.
Disconnect the power supply cable from the power supply.
2.
Using a screwdriver, loosen the captive screws until fully loosened.
The following is a diagram of PWR01, PWR02 or FAN01