Juniper SRX100B, Руководство по оборудованию

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Table 13: Rack Requirements for the Services Gateway
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.
• Maximum permissible ambient temperature when two devices are
placed side by side in a 19 in. rack is 40° C.
Clearance
• The holes within each rack set are spaced at 1 U [1.75 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 1 U (1.75 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 services gateway
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
General Site Guidelines for Installing the SRX100 Services Gateway on page 24
•
•
SRX100 Services Gateway Cabinet Requirements on page 25
•
Clearance Requirements for Airflow and Hardware Maintenance of the SRX100 Services
Gateway on page 27
Clearance Requirements for Airflow and Hardware Maintenance of the SRX100 Services
Gateway
When planning the installation site for the SRX100 Services Gateway, you need to allow
sufficient clearance around the device.
When planning the installation site for the services gateway, consider the following:
•
For the operating temperature of the services gateway to be optimal, the airflow around
the chassis must be unrestricted.
• For service personnel to remove and install hardware components, there must be
adequate space at the front and back of the device. Allow at least 24 in. (61 cm) both
in front of and behind the device.
•
If you are mounting the device in a rack with other equipment, or if you are placing it
on the desktop near other equipment, ensure that the exhaust from other equipment
does not blow into the intake vents of the chassis.
27 Copyright © 2015, Juniper Networks, Inc.
Chapter 4: Planning and Preparing the Site