Cabinet size and clearance

• The minimum size cabinet that can accommodate the JCS1200 platform 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 JCS1200 platform, the cabinet must be at least 12 U (21 in. (53.34 cm)) high.

  A U is the standard rack unit defined in Cabinets, Racks, Panels, and Associated Equipment (document number EIA-310–D) published by the Electronics Industry Association (http://www.eia.org).

• 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.

  Note: If you mount the JCS1200 platform in a cabinet, be sure that sufficient room is provided for cable management and cables.

Cabinet airflow requirements

When you install the router in a cabinet, you must ensure that ventilation through the cabinet is sufficient to prevent overheating. Consider the following requirements to when planning for chassis cooling:

• Ensure that the cool air supply you provide through the cabinet can adequately dissipate the thermal output of the JCS1200 platform. For information about the JCS1200 platform's environmental specifications, including its operating temperature and thermal output, see JCS1200 Platform Environmental Specifications.
• Ensure that the cabinet allows the chassis hot exhaust air to exit from the cabinet without recirculating into the JCS1200 platform. An open cabinet (without a top or doors) that employs hot air exhaust extraction from the top allows the best airflow through the chassis. If the cabinet contains a top or doors, perforations in these elements assist with removing the hot air exhaust.
• Ensure that the cool air supply you provide through the cabinet can adequately dissipate the thermal output of the router.
• Route and dress all cables to minimize the blockage of airflow to and from the chassis.
• Install the router as close as possible to the front of the cabinet so that the chassis just clears the inside of the front door. This maximizes the clearance in the rear of the cabinet for critical airflow.