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    JCS1200 Rack Requirements

    The router can be installed in a rack. Many types of racks are acceptable, including four-post (telco) racks and open-frame racks. An example of an open-frame rack appears in Figure 1. Table 1 summarizes rack requirements and specifications for the JCS1200 platform.

    Table 1: JCS1200 Rack Requirements and Specifications

    Rack Requirement

    Guidelines

    Rack type and mounting bracket hole spacing

    Use a four-post rack or a two-post rack. You can mount the router on any four-post or two-post rack that provides bracket holes or hole patterns spaced at 1 U (1.75-in./4.44-cm) increments and that meets the size and strength requirements specified in this table.

    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 (http://www.eia.org).

    Rack size and strength

    • Ensure that the rack is 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).
    • Ensure that the rack is one of the following standard lengths:
      • 23.62 in. (600 mm)
      • 30.0 in. (762 mm)
      • 31.5 in. (800 mm)
    • The rack rails must be spaced widely enough to accommodate the JCS1200 chassis's external dimensions: 21 in. (53.34 cm) high, 25.64 in. (65.1 cm) deep, and 17.43 in. (44.3 cm) wide. The outer edges of the 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 JCS1200 Clearance Requirements for Airflow and Hardware Maintenance.
    • The JCS1200 platform ships with the mounting brackets. For instructions about moving the mounting hardware, see Installing the JCS1200 Mounting Hardware for an Open-Frame Rack or Installing the JCS1200 Mounting Hardware for a Four-Post Rack or Cabinet.
    • The chassis height of 21 in. (53.34 cm) is approximately 20 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 several routers in a cabinet that has sufficient usable vertical space.
    • The rack must be strong enough to support the weight of the fully configured platform, up to 350 lb (158.8 kg). If you stack two fully configured platforms in one rack, it must be capable of supporting about 878 lb (399.1 kg).
    • Ensure that the spacing of rails and adjacent racks allows for the proper clearance around the platform and rack as specified in JCS1200 Clearance Requirements for Airflow and Hardware Maintenance.

    Rack connection to the 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 for maximum stability.

    Figure 1: Typical Open-Frame Rack

    Typical Open-Frame Rack

    Published: 2013-01-30