CHAPTER 8
Rack Requirements
IN THIS CHAPTER
SRX3600 Services Gateway Rack Size and Strength Requirements | 67
SRX3600 Services Gateway Spacing of Mounting Bracket Holes | 69
Connecting the SRX3600 Services Gateway to the Building Structure | 69
Clearance Requirements for Airflow and Hardware Maintenance of the SRX3600 Services Gateway | 69
SRX3600 Services Gateway Rack Size and Strength Requirements
The services gateway is designed for installation into a 19–in. 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).
With the use of adapters, the services gateway is designed to fit into a 600-mm-wide rack or cabinet, as
defined in the four-part Equipment Engineering (EE); European telecommunications standard for equipment
practice (document numbers ETS 300 119-1 through 119-4) published by the European Telecommunications
Standards Institute (http://www.etsi.org). Use approved wing devices to narrow the opening between the
rails.
The rack rails must be spaced widely enough to accommodate the services gateway chassis's external
dimensions: 8.75 in. (22.2 cm) high, 25.5 in. (64.8 cm) deep, and 17.5 in. (44.5 cm) wide. The spacing of
rails and adjacent racks must also allow for the clearances around the services gateway and rack that are
specified in “Clearance Requirements for Airflow and Hardware Maintenance of the SRX3600 Services
Gateway” on page 69.
For instructions about installing the mounting hardware, see “Installing the Mounting Hardware for the
SRX3600 Services Gateway” on page 109.
The chassis height of 8.75 in. (22.2 cm) is approximately 5 U. A U is the standard rack unit defined in
Cabinets, Racks, Panels, and Associated Equipment (document number EIA-310-D) published by the Electronics
Industry Association. You can stack eight SRX3600 Services Gateways in a rack that has at least 40 U
(70 in. or 1.78 m) of usable vertical space.
67
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