Mx480 Router Rack Requirements; Rack Size And Strength - Juniper MX480 Hardware Manual

Preventing Electrostatic Discharge Damage to an MX480 Router | 477

MX480 Router Rack Requirements

IN THIS SECTION

Rack Size and Strength | 185

Spacing of Mounting Bracket Holes | 186
Connection to Building Structure | 186
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
Rack Size and Strength
The router is designed for installation in a 19-in. rack as defined in Cabinets, Racks, Panels, and Associated
Equipment (document number EIA-310-D) published by the Electronic Components Industry Association
(ECIA) (http://www.ecianow.org).
With the use of adapters or approved wing devices to narrow the opening between the rails, the router
fits into a 600-mm-wide rack or cabinet , as defined in the four-part Equipment Engineering (EE); European
telecommunications standard for equipment practice (document number ETSI EN 300 119) published by the
European Telecommunications Standards Institute (http://www.etsi.org).
The rack rails must be spaced widely enough to accommodate the router chassis's external dimensions:
14.0 in. (356 mm) high, 24.5 in. (622 mm) deep, and 17.45 in. (443 mm) wide. The spacing of rails and
adjacent racks must also allow for the clearances around the router and rack that are specified in
Router Clearance Requirements for Airflow and Hardware Maintenance" on page
In general, a center-mount rack is preferable to a front-mount rack because the more even distribution of
weight in the center-mount rack provides greater stability.
For instructions about installing the mounting hardware, see
Hardware for a Rack or Cabinet" on page
The chassis height of 14.0 in. (35.6 cm) is approximately 8 U. A U is the standard rack unit defined in
Cabinets, Racks, Panels, and Associated Equipment (document number EIA-310-D) published by the Electronic
Components Industry Association (ECIA) (http://www.ecianow.org). You can stack five MX480 routers in
a rack that has at least 48 U (84 in. or 2.13 m) of usable vertical space.
"Installing the MX480 Router Mounting
220.
Figure 45 on page 186.
187.
185
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