M120 Rack Mounting Requirements; Preparing The Site For M120 Router Installation; Table 16: M120 Rack Requirements And Specifications - Juniper M120 Hardware Manual

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M120 Rack Mounting Requirements

Table 16: M120 Rack Requirements and Specifications

Rack Requirement
Rack type and mounting bracket hole
spacing
Copyright © 2010, Juniper Networks, Inc.
with removing the hot air exhaust. For an illustration of chassis airflow, see Figure 16
on page 33.
Route and dress all cables to minimize the blockage of airflow to and from the chassis.
M120 Cabinet Size and Clearance Requirements on page 38
Installing the Mounting Hardware for a Front-Mount Four-Post Rack or Cabinet on
page 49
The router can be installed in a rack. Many types of racks are acceptable, including
four-post (telco) racks and open-frame racks. An example of an open-frame rack appears
in Figure 20 on page 41. Table 16 on page 39 summarizes rack requirements and
specifications for the M120 router.
Guidelines
Use a four-post rack or a two-post rack. You can mount the router on any four-post
or two-post rack that provides bracket holes or hole patterns spaced at 1 U
(1.75-in./4.44-cm) increments and that meets the size and strength requirements
specified in this table.
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
Chapter 3: Preparing the Site for M120 Router Installation
).
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