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M120 Cabinet Size and Clearance Requirements


The minimum size cabinet that can accommodate the router is 600 mm wide and 800 mm deep. A cabinet larger than the minimum requirement provides better airflow and reduces the chance of overheating. To accommodate a single router, the cabinet must be at least 12 U (21 in. or 53.4 cm) high. If you provide adequate cooling air and airflow clearance, you can stack four routers in a cabinet that has at least 48 U (84 in. or 2.1 m) of usable vertical space.

The minimum front and rear clearance requirements depend on the mounting configuration you choose. The minimum total clearance inside the cabinet is 30.70 in. between the inside of the front door and the inside of the rear door.


If you mount the router in a cabinet, be sure that sufficient room is provided for cable management and cables.