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T320 Rack Requirements

 

The T320 Core Router can be installed many types of racks, including four-post racks or cabinets and open-frame racks. An example of an open-frame rack appears in Figure 1.

The router is designed for installation in a 19-in. rack as defined in Cabinets, Racks, Panels, and Associated Equipment (document number EIA-310-D) published by the Electronics Components Industry Association (http://www.ecianow.org/).

With the use of adapters, the router is designed to fit into a 600-mm-wide rack , 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 router chassis's external dimensions: 25.13 in. (63.82 cm) high, 31.4 in. (79.8 cm) deep, and 17.43 in. (44.3 cm) wide. The outer edges of the front-mounting flanges and center-mounting brackets extend the width to 19 in. (48.3 cm). The spacing of rails and adjacent racks must also allow for the clearances around the router and rack that are specified in T320 Clearance Requirements for Airflow and Hardware Maintenance.

The chassis height of 25.13 in. (63.82 cm) is approximately 14.4 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 three routers in a rack that has at least 44 U (77 in. or 1.96 m) of usable vertical space.

The rack must be strong enough to support the weight of the fully configured router, up to approximately 370 lb (168 kg). If you stack three fully configured routers in one rack, it must be capable of supporting about 1110 lb (504 kg).

Figure 1: Typical Open-Frame Rack
Typical Open-Frame Rack