Cabinet Size And Clearance Requirements; Cabinet Airflow Requirements; Srx1400 Services Gateway Rack Size And Strength Requirements - Juniper SRX1400 Hardware Manual

SRX1400 Services Gateway Cabinet Requirements
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SRX1400 Services Gateway Rack Requirements
Copyright © 2011, Juniper Networks, Inc.
This topic includes the following sections:
Cabinet Size and Clearance Requirements on page 43
Cabinet Airflow Requirements on page 43

Cabinet Size and Clearance Requirements

The minimum size cabinet that can accommodate the device is 18.97 in. (482 mm) wide
and 31.49 in. (8000 mm) deep. A cabinet larger than the minimum requirement provides
better airflow and reduces the chance of overheating. To accommodate a single device,
the cabinet must be at least 3 U high.
If you provide adequate cooling air and airflow clearance, you can stack eight devices in
a cabinet that has at least 40 U (70 in. or 1.78 m) of usable vertical space.

Cabinet Airflow Requirements

When you mount the device in a cabinet, you must ensure that ventilation through the
cabinet is sufficient to prevent overheating. Following is a list of requirements to consider
when planning for chassis cooling:
Ensure that the cool air supply you provide through the cabinet can adequately dissipate
the thermal output of the device.
Ensure that the cabinet allows the chassis hot exhaust air to exit from the cabinet
without recirculating into the device. An open cabinet (without a top or doors) that
employs hot air exhaust extraction from the top allows the best airflow through the
chassis. If the cabinet contains a top or doors, perforations in these elements assist
with removing the hot air exhaust.
Route and dress all cables to minimize the blockage of airflow to and from the chassis.
Installation Overview for the SRX1400 Services Gateway on page 51
Site Preparation Checklist for the SRX1400 Services Gateway on page 41
SRX1400 Services Gateway Rack Requirements on page 43
Clearance Requirements for Airflow and Hardware Maintenance of the SRX1400
Services Gateway on page 46
This topic includes the following sections:
SRX1400 Services Gateway Rack Size and Strength Requirements on page 44
SRX1400 Services Gateway Spacing of Mounting Bracket Holes on page 45
Connecting the SRX1400 Services Gateway to the Building Structure on page 45
Chapter 3: Preparing the Site for SRX1400 Services Gateway Installation
43