Juniper SRX240 Series, Hardware Manual

Page: 52 / 198

When planning the installation site for the services gateway, consider the following:
•
For the cooling system to function properly, 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.
•
For the DC power supply model, ensure that you follow the NEBS recommendation—The
NEBS GR-63 recommends that you allow at least 30 in. (72.6 cm) in front of the rack
and 24 in. (61.0 cm) behind the rack.
• 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.
Table 17 on page 34 provides information on the clearance requirements for maintaining
the optimum airflow and the distances for facilitating easy maintenance of the device.
Table 17: Clearance Requirements for the Services Gateway
Requirement for Clearance
Recommended
Clearance
Location
Space for cable management and
organization 2.5 in. (6.35 cm) Between front-mounting flange
and rack or cabinet edge
Space for the cooling system to
function properly and to maintain
unrestricted airflow around the
chassis 2.5 in. (6.35 cm) Between side of the chassis and
any non-heat-producing
surface such as a wall or
cabinet side
Space for the cooling system to
function properly and to maintain
unrestricted airflow around the
chassis 2.5 in. (6.35 cm) Between side of the chassis and
devices that have fans or
blowers
Related
Documentation
•
General Site Guidelines for Installing the SRX240 Services Gateway on page 30
•
SRX240 Services Gateway Rack Requirements on page 33
•
SRX240 Services Gateway Electrical and Power Requirements on page 36
Copyright © 2015, Juniper Networks, Inc. 34
SRX240 Services Gateway Hardware Guide