5-2
z
After hot-plugging a PSU, to insert the PSU again, you need to wait for at least 30 seconds.
z
In view of the height of the switch, make sure the switch is firmly installed and avoid incline of the
switch when installing or removing a PSU.
z
Do not touch the rotating fans on a removed PSU.
Removing the PEM
Removal procedures for the three PEM models are similar. PEM-C20 is taken as an example here.
Step1
Use a Philips screwdriver to loosen the captive screws on the front panel of the PEM.
Step2
Pull the PEM out slowly along the slide rails, as shown in Figure 5-2.
Figure 5-2
Remove a PEM
Replacing and Cleaning the Air Filter
You are strongly recommended to clean air filters semi-monthly to guarantee adequate ventilation.
It is very easy to install and remove an air filter. The chassis air filter is taken as an example here.
The air filter is right behind the front panel. To remove the air filter, open the front panel upwards and
loosen the captive screws from the air filter.
Replacing the air filter of an S12508
z
Removing and cleaning the air filter
