Mx240 Router Cabinet Size And Clearance Requirements; Figure 39: Chassis Dimensions And Clearance Requirements - Juniper mx240 Hardware Manual

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MX240 Router Cabinet Size and Clearance Requirements

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Documentation
Copyright © 2016, Juniper Networks, Inc.
front of the rack is supplied to the inlets, and exhaust exits the rear of the rack. The
device must not interfere with the cooling of other systems in the rack. Fillers must be
used as appropriate in the rack to ensure there is no recirculation of heated exhaust
air back to the front of the rack. Care must also be taken around cables to ensure that
no leakage of air in situations where recirculation may result.

Figure 39: Chassis Dimensions and Clearance Requirements

MX240 Router Cabinet Size and Clearance Requirements on page 109
MX240 Router Cabinet Airflow Requirements on page 110
The minimum-sized cabinet that can accommodate the router is 482-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 13 U high. If you provide adequate cooling air and airflow clearance, you
can stack several routers in a cabinet that has sufficient usable vertical space. Each router
requires 5 U.
The minimum total clearance inside the cabinet is 30.7 in. (780 mm) between the inside
of the front door and the inside of the rear door.
MX240 Router Clearance Requirements for Airflow and Hardware Maintenance on
page 108
MX240 Router Cabinet Airflow Requirements on page 110
Chapter 9: Preparation Overview
109