Juniper EX2300 Series Hardware Manual page 73

• Rack connection to the building structure
Table 21 on page 64 provides the rack requirements and specifications.
Table 21: Rack Requirements and Specifications
Rack Requirement Guidelines
Rack type You can mount the device on a rack that provides bracket holes or hole patterns spaced at
1-U (1.75 in. or 4.45 cm) increments and meets the size and strength requirements to
support the weight.
A U is the standard rack unit defined by the Electronic Components Industry Association
(http:/
Mounting bracket The holes in the mounting brackets are spaced at 1-U (1.75 in. or 4.45 cm), so that the
hole spacing device can be mounted in any rack that provides holes spaced at that distance.
Rack size and
•
strength
•
•
•
Rack connection to
•
building structure
•
•
SEE ALSO
Rack-Mounting and Cabinet-Mounting Warnings
/www.ecianow.org).
Ensure that the rack complies with the size and strength standards of a 19-in. rack as
defined by the Electronic Components Industry Association
Ensure that the rack rails are spaced widely enough to accommodate the external
dimensions of the device chassis. The outer edges of the front mounting brackets
extend the width of the chassis to 19 in. (48.2 cm).
The rack must be strong enough to support the weight of the device.
Ensure that the spacing of rails and adjacent racks provides for proper clearance around
the device and rack.
Secure the rack to the building structure.
If your geographical area is earthquake-prone, secure the rack to the floor.
Secure the rack to the ceiling brackets as well as wall or floor brackets for maximum
stability.
(http:/ /www.ecianow.org).
64