Dell PowerConnect J-SRX240 Hardware Guide - Page 55
J-SRX240 Services Gateway Rack Requirements, Table 19: Rack Requirements for the Services Gateway
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Chapter 6: Preparing the Site for the J-SRX240 Services Gateway Installation • Ensure that the blank Mini-PIM panel is installed in the empty slot to prevent any interruption or reduction in the flow of air across internal components. NOTE: Install the device 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. Related Topics • J-SRX240 Services Gateway Specifications on page 7 • J-SRX240 Services Gateway Site Electrical Wiring Guidelines on page 123 • J-SRX240 Services Gateway Rack Requirements on page 39 • Clearance Requirements for Airflow and Hardware Maintenance on the J-SRX240 Services Gateway on page 40 • Interface Cable and Wire Specifications for the J-SRX240 Services Gateway on page 127 J-SRX240 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 does not support center-mount racks. Table 19 on page 39 provides the details on rack size, clearance, and airflow requirements. Table 19: Rack Requirements for the Services Gateway Rack Requirements Specifications Rack Size A 19 in. (48.3 cm) 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). Rack Requirements Spacing of Mounting Bracket and Flange Holes • The outer edges of the mounting brackets extend the width of either chassis to 19 in. (48.3 cm). • The front of the chassis extends approximately 0.5 in. (1.27 cm) beyond the mounting ears. • Maximum permissible ambient temperature when two devices are placed side by side in a 19 in. rack is 40ο C. • In a rack, two devices should be placed in alternate slots and not adjacent. NOTE: If you use a front-mount rack, we recommend you support the back of the device with a shelf or other structure. • The holes within each rack set are spaced at 1 U [1.75 in. (4.5 cm)]. The device can be mounted in any rack that provides holes or hole patterns spaced at 1-U [1.75 in. (4.5 cm)] increments. • 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 1 U (1.75 in.). • The mounting holes in the mounting brackets provided with the device are spaced 1.25 in. (3.2 cm) apart (top and bottom mounting hole). 39