Juniper JSA3500, Руководство по оборудованию

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Table 24 on page 39 provides the details of requirements for rack size, clearance, airflow,
spacing of mounting brackets and flange holes, and connecting to the building structure.
Table 24: Rack Requirements for the JSA Appliance
Specifications Rack Requirement
A 19-in. (48.3 cm) rack as defined in Cabinets, Racks, Panels, and
Associated Equipment (document number EIA-310-D) published by the
Electronics Industry Association (http://www.eia.org). Size
• The outer edges of the mounting brackets extend the width of either
chassis to 19-in. (48.3 cm).
•
The front of the chassis extends approximately 0.5-in. (1.27 cm) beyond
the mounting ears.
Clearance
• The holes within each rack set are spaced at 2-U [3.5-in. (4.5 cm)]. The
device can be mounted in any rack that provides holes or hole patterns
spaced at 2-U [3.5-in. (4.5 cm)] increments. The holes within each rack
set are spaced at 2-U [3.5-in. (4.5 cm)]. The device can be mounted in
any rack that provides holes or hole patterns spaced at 1-U [1.75-in. (4.5
cm)] increments.
• The mounting brackets and front-mount flanges used to attach the
chassis to a rack are designed to fasten to holes spaced at rack distances
of 2-U (3.5-in.).
• The mounting holes in the mounting brackets provided with the device
are spaced 1.25-in. (3.2 cm) apart (top and bottom mounting hole).
Spacing of
mounting bracket
and flange holes
Always secure the rack in which you are installing the JSA to the structure
of the building. If your geographical area is subject to earthquakes, bolt
the rack to the floor. For maximum stability, also secure the rack to ceiling
brackets. Connecting to the
building structure
Related
Documentation
•
Additional Hardware Requirements on page 37
•
Hardware Specifications on page 7
•
General Site Installation Guidelines for the JSA Appliance on page 38
•
Grounding the JSA7500 Appliance on page 97
39 Copyright © 2018, Juniper Networks, Inc.
Chapter 8: Site Preparation