Juniper QFX5100 - Cabinet Requirements for a QFX5100 Device; Clearance Requirements for Airflow and Hardware Maintenance for a QFX5100; Device

Table 26: Rack Requirements for the QFX5100 Device (continued)
GuidelinesRack Requirement
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.
Mounting bracket hole
spacing (all product SKUs)
•
Ensure that the rack complies with the standards for a 19-in. or 23-in. rack as defined in Cabinets,
Racks, Panels, and Associated Equipment (document number EIA-310–D) published by the
Electronics Industry Association.
•
A 600-mm rack as defined in the four-part Equipment Engineering (EE); European
telecommunications standard for equipment practice (documentnumbersETS 300119-1 through
119-4) published by the European Telecommunications Standards Institute
(href="http://www.etsi.org">http://www.etsi.org).
The horizontal spacing between the rails in a rack that complies with this standard is usually
wider than the device's mounting brackets, which measure 19 in. (48.26 cm) from outer edge
to outer edge. Use approved wing devices to narrow the opening between the rails as required.
•
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 width to 19 in.
(48.26 cm).
•
For four-post installations, the front and rear rack rails must be spaced between 23.6 in. (60
cm) and 36 in. (91.4 cm) front-to-back.
•
The rack must be strong enough to support the weight of the switch.
•
Ensure that the spacing of rails and adjacent racks allows for proper clearance around the
switch and rack.
Rack size and strength (all
product SKUs)
•
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 QFX5100 Device on page 71•
• Rack-Mounting and Cabinet-Mounting Warnings on page 251
• Clearance Requirements for Airflow and Hardware Maintenance for a QFX5100 Device
on page 76
• Mounting a QFX5100 Device in a Rack or Cabinet on page 160
Cabinet Requirements for a QFX5100 Device
You can mount the QFX5100 device in an enclosure or cabinet that contains a four-post
19-in. open rack as defined in Cabinets, Racks, Panels, and Associated Equipment
(document number EIA-310-D) published by the Electronics Industry Association.
Cabinet requirements consist of:
•
Cabinet size and clearance
•
Cabinet airflow requirements
Table27 on page 76 provides the cabinet requirementsand specifications for the QFX5100
device.
75Copyright © 2016, Juniper Networks, Inc.
Chapter 6: Preparation Overview