H3C Technologies H3C S10500 Series Switches - Manual (Page 59)

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Figure 51 Removing an air filter
(1) Loosen the screws on the air filter
Replacing PoE system components
WARNING!
•
Make sure the power is off when you are replacing a PoE system component.
• After you switch off the power of the external PoE power frame, do not switch on the power again within
30 seconds.
Replacing a PoE PEM
PoE PEMs on the S10506 switch and the S10510 switch are replaced in the same way. This section uses
the S10506 as an example.
To replace a PoE PEM:
1. Remove the cable tie from the DC power cords.
2. Remove the terminal block cover over the power terminals, as shown in Figure 52 .
To remove the terminal block cover for an S10506 switch or the upper terminal block cover for an
S10510 switch:
a. Press the top locking tab on the terminal block cover.