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Rack Requirements

 
  • You can install the JA2500 appliance in a two-post or four-post rack. The rack size requirements are as follows:

    • A 19-in. (48.3-cm) rack as defined in Cabinets, Racks, Panels, and Associated Equipment (document number EIA-310-D) published by the Electronic Components Industry Association (http://www.ecianow.org)

    • A 600-mm 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)

      The horizontal spacing between the rails in a rack that complies with this standard is wider than the appliance’s mounting brackets, which measure 19 in. (48.3 cm) from outer edge to outer edge. Use approved wing devices to narrow the opening between the rails as required

  • The rack rails must be spaced wide enough to accommodate the external dimensions of the JA2500 appliance chassis. The shipping dimensions of a JA2500 appliance are 17.81 in. x 17.31 in. x 3.5 in. (45.2 cm x 44 cm x 8.89 cm).

  • The outer edges of the mounting brackets extend the width of the chassis to 19 in. (48.3 cm).

  • The front of the chassis extends approximately 0.5 in. (1.27 cm) beyond the mounting ears.

  • The holes within each rack set are spaced at 2-U [3.5 in (8.9 cm)]. Therefore, the appliance can be mounted in a rack that provides holes or hole patterns spaced at 2-U [3.5 in (8.9 cm)] increments, or in a rack that provides holes or hole patterns spaced at 1-U [1.75 in. (4.5 cm)] increments as long as there is 2x1-U space available in the rack.

  • The mounting brackets and front-mount flanges used to attach the chassis to a rack are designed to fasten to holes spaced at rack distances of 2-U [3.5 in (8.9 cm)] increments, or in a rack that provides holes or hole patterns spaced at 1-U [1.75 in. (4.5 cm)] increments as long as there is 2x1-U space available in the rack.

  • The mounting holes in the mounting brackets provided with the device are spaced 1.25 in. (3.2 cm) apart (top and bottom mounting holes).

  • Always secure the rack in which you are installing the appliance to the structure of the building. If your geographical area is subject to earthquakes, bolt the rack to the floor. For maximum stability, also secure the rack to ceiling brackets.

  • For the cooling system to function properly, the airflow around the chassis must be unrestricted. Allow sufficient clearance between the front and back of the chassis and adjacent equipment. Ensure that there is adequate circulation in the installation location.

  • The rack must be strong enough to support the weight of the fully configured appliance, up to 31.2 lb (14.15 kg).

  • The appliance should be mounted at the bottom of the rack if it is the only unit in the rack.

  • Install the appliance only in restricted areas, such as dedicated equipment rooms and equipment closets, in accordance with Articles 110–16, 110–17, and 110–18 of the National Electrical Code, ANSI/NFPA 70.