Filter
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Section 4 — Maintenance
Air Filter Cleaning
Switcher Frame Air Filter Cleaning
The air filter at the bottom of the switcher frame (see Figure 4-14) reduces
the accumulation of dust. The filter should be checked and cleaned
regularly.
A fan at the top of the frame draws air up through the circuit cards from
inlets at the bottom. Cooling air entering the frame passes through the
slide-in air filter then out the vents at the top of the frame.
Filter Insert
Figure 4-14. Switcher Frame Cooling System Vent and Filter Locations.
Exhaust Outlets
Air Inlets
Cooling Fan