Rack Requirements and Specifications for a Junos Space JA1500 Appliance

The Junos Space JA1500 appliance has a 2U rack-mountable chassis. It ships with 2-post and 4-post mounting hardware. The appliance can be installed in many types of racks, including four-post (telco) racks and open-frame racks. Table 3 lists the rack requirements.

Table 3: JA1500 Appliance Rack Requirements

Rack Requirement	Guidelines
Rack type	Use a front-mount rack, four-post rack (telco), or a center-mount rack.
Rack size and strength	Ensure that the rack complies with one of these standards: 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). 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. (48.2 cm) from outer edge to outer edge. Use approved wing devices to narrow the opening between the rails as required. Ensure that the spacing of rails and adjacent racks allow for the proper clearance around the appliance and rack.
Rack connection to building structure	Secure the rack to the building structure. If earthquakes are a possibility in your geographical area, secure the rack to the floor. Secure the rack to the ceiling brackets as well as wall or floor brackets if maximum stability is required.

One pair of mounting brackets is supplied with the appliance. The holes in the mounting brackets are spaced at 1 U (1.75 in. or 4.445 cm), so the appliance can be mounted in any rack that provides holes spaced at that distance.

The outer edges of the mounting brackets extend the width of the chassis to 19 in. (48.2 cm), and the front of the chassis extends approximately 0.5 in. (1.27 cm) beyond the mounting brackets. The spacing of rails and adjacent racks must also allow for the clearances around the appliance and rack.