Juniper MX2020 Hardware Manual page 143

Copyright © 2015, Juniper Networks, Inc.
A 19-in. rack as defined in Cabinets, Racks, Panels, and Associated Equipment (document
number EIA-310-D) published by the Electronics Components Industry Association
(
http://www.ecianow.org/
A 600-mm rack as defined in the four-part Equipment Engineering (EE); European
telecommunications standard for equipment practice (document numbers ETS 300
119-1 through 119-4) published by the European Telecommunications Standards Institute
( ). The horizontal spacing between the rails in a rack that complies
http://www.etsi.org
with this standard is usually wider than the mounting brackets, which measure
19.2 in. (48.8 cm) from the outer edge to outer edge. Use approved wing devices to
narrow the opening between the rails as required.
A 23-in. rack using appropriate 23-in. to 19-in. rack adapters and an appropriate
installation shelf which supports the chassis at the correct vertical position to properly
line up the rack mount holes. Juniper Networks does not supply this hardware, but
consideration for the size and weight of the chassis is important for a safe installation.
The rack rails must be spaced widely enough to accommodate the chassis's external
dimensions: 78.75 in. (200 cm) high, 36.20 in. (91.95 cm) deep, and 19 in. (48.3 cm) wide.
The outer edges of the front-mounting flanges extend the width to 19.2 in. (48.8 cm),
The spacing of rails and adjacent racks must also allow for the clearances around the
chassis and rack that are specified in
Maintenance for the MX2020 Router" on page
For instructions about installing the mounting hardware, see
Mounting Hardware for a Four-Post Rack or Cabinet" on page
The weight and depth of the router depends on the type of cable management system
installed.
With the standard or extended cable management system installed, use these guidelines:
The rack must have sufficient vertical usable space to accommodate the height of the
router: 78.75 in. (200 cm). You can install one chassis in a rack. A typical four-post rack
measures 84 in. (213.4 cm) high, 24 in. (61 cm) to 30 in. (76.2 cm) deep, and
19 in. (48.3 cm) wide (see
NOTE: A is the standard rack unit defined in Cabinets, Racks, Panels, and
U
Associated Equipment (document number EIA-310-D) published by the
Electronics Industry Association (
The location of the rack must provide sufficient space to accommodate the depth of
the router. The chassis with the standard cable management system is 36.22 in. (92 cm)
deep.
The chassis with the extended cable management system is 40.15 in. (102 cm) deep.
The rack must be strong enough to support the weight of the fully configured router,
up to 1,515 lb (687.19 kg).
Chapter 10: Planning and Preparing the Site
).
"Clearance Requirements for Airflow and Hardware
121.
Figure 52 on page 112).
http://www.eia.org
"Installing the MX2020
205.
).
111