Juniper MX480, Hardware Manual

Page: 147 / 420

Figure 42: Typical Open-Frame Rack
Spacing of Mounting Bracket Holes
The router can be mounted in any rack that provides holes or hole patterns spaced at 1
U (1.75 in.) increments. The mounting brackets used to attach the chassis to a rack are
designed to fasten to holes spaced at those distances.
Connection to Building Structure
Always secure the rack to the structure of the building. If your geographical area is subject
to earthquakes, bolt the rack to the floor. For maximum stability, also secure the rack to
ceiling brackets.
See Also Installation Safety Warnings for Juniper Networks Devices
•
MX480 Router Clearance Requirements for Airflow and Hardware Maintenance
When planning the installation site, you need to allow sufficient clearance around the
rack (see
Figure 43 on page 148 ):
•
For the cooling system to function properly, the airflow around the chassis must be
unrestricted. Allow at least 8 in. (20.3 cm) of clearance between side-cooled routers.
147 Copyright © 2019, Juniper Networks, Inc.
Chapter 2: Site Planning, Preparation, and Specifications