Rack Requirements - Juniper EX9214 Hardware Manual

Rack Requirements

You can mount the device on two-post racks or four-post racks.
Rack requirements consist of:
• Rack type.
• Mounting bracket hole spacing.
• Rack size and strength.
• Rack connection to the building structure.
Table 47 on page 132 provides the rack requirements and specifications.
Table 47: Rack Requirements and Specifications
Rack Requirement Guidelines
Rack type A U is the standard rack unit defined by the Electronic Components Industry Association
(http:/
You can mount the device on a rack that provides bracket holes or hole patterns spaced at
1U (1.75 in. or 4.45 cm) increments and meets the size and strength requirements to
support the weight.
Mounting bracket The holes in the mounting brackets are spaced at 1U (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 Ensure that the:
strength
•
•
•
•
/www.ecianow.org).
Rack complies with the size and strength standards of a 19-in. rack as defined by the
Electronic Components Industry Association
Rack rails are spaced widely enough to accommodate the external dimensions of the
device chassis. Ensure also that the outer edges of the front mounting brackets extend
the width of the chassis to 19 in. (48.2 cm).
Rack is strong enough to support the weight of the device.
Spacing of rails and adjacent racks provides for proper clearance around the device and
rack.
(http:/ /www.ecianow.org).
132