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Related
Documentation
Rack-Mounting and Cabinet-Mounting Warnings on page 179
•
•
Cabinet Requirements for a QFX3008-I Interconnect Device on page 98
•
Chassis Physical Specifications for a QFX3008-I Interconnect Device on page 41
Rack Requirements for a QFX3500 Device
A QFX3500 device is designed to be installed on four-post racks.
Rack requirements consist of:
•
Rack type
•
Mounting bracket hole spacing
•
Rack size and strength
•
Rack connection to the building structure
provides the rack requirements and specifications for the QFX3500
device.
Table 25: Rack Requirements for the QFX3500 Device
Guidelines
Rack Requirement
Use a four-post rack. You can mount the device on a four-post rack that provides bracket holes or
hole patterns spaced at 1 U (1.75 in. or 4.45 cm) increments and that meets the size and strength
requirements to support the weight.
A U is the standard rack unit defined in
Cabinets, Racks, Panels, and Associated Equipment
(document
number EIA-310–D) published by the Electronics Industry Association.
Rack type
The holes in the mounting brackets are spaced at 1 U (1.75 in. or 4.45 cm), so that the device can
be mounted in any rack that provides holes spaced at that distance.
Mounting bracket hole
spacing
•
Ensure that the rack complies with the standards for a 19-in. rack as defined in
Cabinets, Racks,
Panels, and Associated Equipment
(document number EIA-310–D) published by the Electronics
Industry Association.
•
Ensure that the rack rails are spaced widely enough to accommodate the device chassis’ external
dimensions. The outer edges of the front-mounting brackets extend the width to 19 in. (48.26 cm).
•
The front and rear rack rails must be spaced between 28 in. (71.1 cm) and 36 in. (91.4 cm)
front-to-back.
•
The rack must be strong enough to support the weight of the device.
•
Ensure that the spacing of rails and adjacent racks allows for proper clearance around the device
and rack.
Rack size and strength
•
Secure the rack to the building structure.
•
If earthquakes are a possibility in your geographical area, secure the rack to the floor.
•
Secure the rack to the ceiling brackets as well as wall or floor brackets for maximum stability.
Rack connection to
building structure
Related
Documentation
Chassis Physical Specifications for a QFX3500 Chassis on page 64
•
•
Rack-Mounting and Cabinet-Mounting Warnings on page 179
Copyright © 2012, Juniper Networks, Inc.
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QFX3000 Hardware Documentation
Summary of Contents for QFabric QFX3008-I
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