M320 Cabinet Requirements; Figure 23: Typical Open-Frame Rack - Juniper M320 Hardware Manual

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M320 Cabinet Requirements

Copyright © 2010, Juniper Networks, Inc.
For instructions about installing the mounting hardware, see "Installing the M320 Mounting
Hardware for a Four-Post Rack or Cabinet" on page 56.
The chassis height of 34.80 in. (88.4 cm) is approximately 20 U. A
unit defined in Cabinets, Racks, Panels, and Associated Equipment (document number
EIA-310-D) published by the Electronics Industry Association. You can stack two M320
routers in a rack that has at least 40 U (70 in. or 1.78 m) of usable vertical space.
The rack must be strong enough to support the weight of the fully configured router, up
to 439 lb (199.6 kg). If you stack two fully configured routers in one rack, it must be
capable of supporting about 878 lb (399.1 kg).

Figure 23: Typical Open-Frame Rack

M320 Site Preparation Checklist Requirements on page 41
M320 Chassis Lifting Guidelines on page 216
M320 Cabinet Size and Clearance Requirements on page 46
M320 Cabinet Airflow Requirements on page 47
Chapter 3: Preparing the Site for M320 Router Installation
U
is the standard rack
45