3Com 8810 Switch User Manual


 
82 CHAPTER 6: SWITCH MONITORING AND MAINTENANCE
4 Hold the handle of the PSU and pull the PSU gently out of the chassis along the
guides.
Figure 57 Remove and install the AC PSU
Installing an AC PSU
1 Hold the handle of the PSU with one hand and the bottom of the PSU with
another hand, and gently slide the PSU into the chassis along the guides until it is
secure in the backplane.
2 Fasten the screws at both sides of the PSU panel with a flathead screwdriver.
3 Check that the power switch on the panel is in the “OFF” position and the clamp
holding the power cord connector is pulled up.
4 Insert the AC power cord included with the switch into the socket on the PSU.
5 Pull the clamp down to hold the power cord.
Replacing and Cleaning
the PCU’s Air Filter
This section describes how to clean and replace the Switch 8800’s AC PSU air filter.
c
CAUTION: We strongly recommend that you clean the air filter semimonthly to
guarantee adequate ventilation.
Removing and cleaning the air filter of PSU
1 Hold the air filter by the upper and lower edges with your index finger and thumb.
2 Gently pull the air filter out of the chassis.
3 Take the black air filter mesh out.
4 Clean and dry (but do not rub) the mesh.
5 Place the dry black mesh back into position.