Site Preparation
7450 ESS-7 Page 45
Rack Clearance Requirements
Allow at least 3-inch clearance on the sides of the rack for proper airflow and at least 20-inches in
the front and rear of the rack for maintenance access and to allow space to remove and install SF/
CPM, IOMs, MDAs, and AC PSMs in the front and allow space to remove and install the fan and
filter trays and DC or AC PEMs in the rear.
Figure 11: Chassis Clearance Requirements
FRONT
REAR
20” REAR
REQUIRED FOR MAINTENANCE
20” FRONT
REQUIRED FOR MAINTENANCE
3” SIDE
RECOMMENDED FOR AIR FLOW AND
MAINTENANCE
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