Removable Power Supply and Fan
12
5.
Ensure there are no exposed cable strands.
6.
Replace the cover. You
must
replace the transparent plastic terminal cover
before continuing.
7.
Secure the supply cable to the rack framework or a similar object to ensure
that connections are isolated from any force applied to the cable.
8.
Ensure the circuit breaker for the supply circuit and the Run/Standby switch
on the PSU are
off
. Press and release the Run/Standby switch so that it is
not pushed in (which is the Off position).
9.
Connect the supply cable wires to the circuit breaker.
10.
Turn on the PSU by pushing in the Run/Standby switch.
11.
Confirm that the switch is receiving power.
Check that at least one of the PSU LEDs on the front panel of the switch is
lit green. If no LEDs light, refer to the
Hardware Reference for
troubleshooting information.
Checking LEDs
LEDs on PSUs, fans, and the front panels of switches indicate the operational
status of the devices. After you have installed a PSU or fan and have powered on
the switch, check the LEDs to verify operation by using the following tables.
PWR01
PWR02
The following table describes LEDs on the PWR01 and PWR02 power supply
units.
LED
State
Description
FAULT
Red
The temperature on the PSU has exceeded the limit of
75º C (167º F), or the fan failed.
PWR
GOOD
Green
A PSU is installed in the switch and is delivering power.
