Rack Requirements for a QFX3008-I Interconnect Device
You can mount a QFX3008-I Interconnect device on two-post 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 24 on page 95 summarizes rack requirements and specifications for a QFX3008-I
Interconnect device.
Table 24: Rack Requirements and Specifications for a QFX3008-I Interconnect Device
GuidelinesRack Requirement
You can mount the device on any two-post or four-post rack that provides bracket
holes or hole patterns spaced at 1 U (1.75 in. or 4.44 cm) increments and that meets
the size and strength requirements specified in this table.
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.
You can stack two QFX3008-I Interconnect devices in a rack that has at least 42 U.
In all cases, the rack must meet the strength requirements to support the weight of
the switch.
Rack type and mounting bracket hole
spacing
•
Ensure that the rack is a 19-in. rack as defined in Cabinets, Racks, Panels, and
Associated Equipment (documentnumber EIA-310–D) published by the Electronics
Industry Association.
•
Ensure that the rackrails are spacedwidely enough to accommodate the QFX3008-I
Interconnect device external dimensions of 17.3 in. (43.9 cm) width. The outer edges
of the front-mounting brackets extend the width to 19 in. (48.3 cm).
•
The QFX3008-I Interconnect device height of 36.65in. (93.09 cm) is approximately
21 U.
•
Therack must be strong enough to support the weight of the fullyconfigured device.
A fully configured QFX3008-I Interconnect device weighs approximately 650 lb
(295 kg). If you stack two fully configured devices in one rack, that rack must support
up to 1300 lb (590 kg).
•
Ensure that the spacing of rails and adjacent racks allows for the proper clearance
around the switch and rack as specified in “Clearance Requirements for Airflow and
Hardware Maintenance for a QFX3008-I Interconnect Device” on page 100.
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 the building
structure
95Copyright © 2012, Juniper Networks, Inc.
Chapter 6: Rack and Cabinet Requirements
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