Technical Documentation

Rack Requirements for VXA1000 Series Media Flow Engines

Before you install a VXA1000 Series Media Flow Engine in a rack, you must ensure that the rack complies with a standard 19-in (48.26 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). Refer to this standard for details on rack size and mounting hole spacing.

When selecting a rack, ensure that the physical characteristics of the rack comply with the following specifications:

  • The size, strength, and location of the rack must accommodate the appliance's weight and external dimensions.
  • The inner edge of the rack rails must allow sufficient space for the width of the chassis.
  • The rack must have sufficient vertical usable space to accommodate the height of the appliance: 1.75 in (44.5 mm), or 1 U.

    Note: 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.

  • The rack must provide holes or hole patterns spaced at 1 U increments that match the holes provided in the appliance mounting brackets.
  • The rack must be grounded to a reliable earth ground.
  • You must use only copper grounding conductors.
  • To ensure a reliable, low-resistance ground bond between the chassis and the rack, the mounting area on the rack should be paint-free, bare plated metal. The use of thread-forming screws and placing external-tooth, paint-piercing washers between the screw head and equipment mounting brackets help ensure a good ground bond. You must provide these fasteners.
  • The location of the rack must allow for the clearance requirements specified in Clearance Requirements for Airflow and Hardware Maintenance for VXA1000 Series Media Flow Engines.

Caution: Always secure the rack in which you are installing the Media Flow Engine 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.


Published: 2010-07-14

Help
|
My Account
|
Log Out