Table 50: Rack Requirements For The Qfx10000; Table - Juniper QFX10008 Hardware Manual

QFX10008 Switch Hardware Guide

Table 50: Rack Requirements for the QFX10000

Rack Requirement
Rack type: four-post
Mounting bracket hole spacing
Rack size and strength
Rack connection to building structure
See Also
120
Rack size and strength
Rack connection to the building structure
Table 50 on page 120 provides the rack requirements and specifications for the QFX10008
and the QFX10016.
Guidelines
Use 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.
You can stack two QFX10016 or three QFX10008 chassis in a four-post rack
if:
The rack is 42 U or greater.
The rack meets the strength requirements to support the weight.
The facility can provide adequate power and cooling.
The holes in the mounting brackets are spaced at 1 U (1.75 in. or 4.45 cm), so
that the switch can be mounted in any rack that provides holes spaced at that
distance.
Ensure that the rack complies with the standards for a 19-in. wide rack as
defined in Cabinets, Racks, Panels, and Associated Equipment (document
number EIA-310–D) published by the Electronics Industry Association.
Use one of the standard rack lengths as defined in the four-part Equipment
Engineering (EE); European telecommunications standard for equipment
practice (document numbers ETS 300 119-1 through 119-4) published by
the European Telecommunications Standards Institute.
23.62 in. (600 mm)
30.0 in. (762 mm)
31.5 in. (800 mm)
Ensure that the rack rails are spaced widely enough to accommodate the
switch chassis' external dimensions. The outer edges of the front-mounting
brackets extend the chassis width to 19 in. (48.26 cm).
Ensure that the rack is strong enough to support the weight of the switch
and cabling.
Ensure that the spacing of rails and adjacent racks allows for proper
clearance around the switch and rack. .
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-Mounting and Cabinet-Mounting Warnings on page 279
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