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Rack type
Mounting bracket hole spacing
Rack size and strength
Rack connection to the building structure
Table 23 on page 48
provides the rack requirements and specifications for the device.
Table 23: Rack Requirements and Specifications for the Device
Rack Requirement
Rack type
Mounting bracket hole
spacing
Rack size and strength
Rack connection to
building structure
For mounting the device on four posts of a rack or cabinet, you can order a four-post rack-mount kit
separately.
Guidelines
Use a four-post rack. You can mount the device on any four-post rack that provides bracket
holes or hole patterns spaced at 1 U (1.75 in. or 4.45 cm) increments and that meets the size
and strength requirements to support the weight.
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.ecianow.org/standards-practices/standards/).
The rack must meet the strength requirements to support the weight of the chassis.
The holes in the mounting brackets are spaced at 1 U (1.75 in. or 4.45 cm), so that the device
can be mounted in any rack that provides holes spaced at that distance.
Ensure that the rack complies with the standard defined for 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.ecianow.org/standards-practices/standards/).
Ensure that the rack rails are spaced widely enough to accommodate the device chassis'
external dimensions of 1.72 in. (4.3 cm) height, 17.36 in. (44.1 cm) width, and 20.87 in.
(53 cm) depth. The 19-in. rack brackets dimensions are 0.82 in. (2.1 cm) wide, 1.72 in.
(4.3 cm) height, and 20.86 in. (53 cm) depth.
The rack must be strong enough to support the weight of the device.
Ensure that the spacing of rails and adjacent racks allows for the proper clearance around
the device and rack.
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.
48
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