Table 14: SRX220 Services Gateway Cabinet Requirements (continued)
SpecificationsCabinetRequirements
•
The cabinet is at least 1 U (1.75 in. or 4.5 cm) high.
•
The outer edges of the mounting brackets extend the width of the
chassis to 19 in. (48.3 cm), and the front of the chassis extends
approximately 0.5 in. (1.27 cm) beyond the mounting brackets.
•
The minimum total clearance inside the cabinet is 30.7 in. (78 cm)
between the inside of the front door and the inside of the rear door.
NOTE: The holes for the mounting brackets are spaced 1.25 in. (3.2 cm)
apart, measured from the center of the hole.
Clearance requirements
•
Ensure that ventilation through the cabinet is sufficient to prevent
overheating.
•
Ensure adequate cool air supply to dissipate the thermal output of
the device.
•
Install the device as close as possible to the front of the cabinet so
that the cable management system clears the inside of the front
door. Installing the chassis close to the front of the cabinet
maximizes the clearance in the rear of the cabinet for critical airflow.
•
Route and dress all cables to minimize the blockage of airflow to
and from the chassis.
NOTE: A cabinet larger than the minimum size required provides better
airflow and reduces the chance of overheating.
Cabinet airflow
requirements
Related
Documentation
General Site Guidelines for Installing the SRX220 Services Gateway on page 29•
• Site Preparation Checklist for the SRX220 Services Gateway on page 27
• SRX220 Services Gateway Rack Requirements on page 30
• Clearance Requirements for Airflow and Hardware Maintenance of the SRX220 Services
Gateway on page 31
SRX220 Services Gateway Rack Requirements
The services gateway can be installed in a rack. Many types of racks are acceptable,
including front-mount racks and four-post (telco) racks.
NOTE: The services gateway cannot be center-mounted in racks.
Table 15 on page 31 provides the details on rack size, clearance, and airflow requirements.
Copyright © 2012, Juniper Networks, Inc.30
SRX220 Services Gateway Hardware