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Universal Four-Post Rack Kit Installation Procedure
Contents
This document provides instructions to install switches in EIA racks that are between L-12.7 to 81.28 cm
deep (L-5.0 to 32.0 in.), where L is the chassis depth, using the Universal Four-Post Rack Kit (XBR-
R000296).
Introduction
The rack kit allows the device to be installed so that the port side is either flush with the front posts or
recessed with the nonport side flush with the rear posts. A recessed position allows a more gradual
bend in the fiber-optic cables connected to the switch and less interference in the aisle at the front of the
rack.
NOTE
Although this document describes how to install both single height (1U) and double height (2U)
switches, the illustrations show a 1U switch as a typical installation.
Installation requirements
Allow 15 to 30 minutes to complete this procedure. Provide space in an EIA rack with the following
minimum and maximum distances between the front and back posts.
TABLE 7
Chassis with port-
side side vents
No
Yes
Yes
Note that if chassis depth (L) is less than 40.64 cm (16 in.), the chassis will not fit into a rack with a
maximum depth of 81.28 cm (32 in.) using this rack kit. The maximum rack depth for a chassis less than
40.64 cm (16 in.) is 81.28 cm (32 in.) minus the difference between the chassis depth and 40.64 cm (16
in.). For example, a chassis with a depth (L) of 35.56 cm (14 in.) is 5.08 cm (2 in.) smaller than 40.64
cm (16 in.), so it will install into a rack with a maximum depth of 81.28 cm (32 in.) - 5.08 cm (2 in.) =
76.2 cm (30 in.).
• Verify that the additional weight of the switch does not exceed the rack weight limits.
• Ensure that an electrical branch circuit with the following characteristics is available:
Brocade VDX 6940 Hardware Installation Guide
53-1003495-02
Space requirements
Notes
Applicable to portside and
non-portside flush mounts.
Applicable to portside flush
mounts.
Applicable to non-portside
flush mounts.
Universal Four-Post Rack Kit Installation Procedure
Chassis depth Minimum rack depth Maximum rack depth
L
L-12.7 cm (L-5 in.)
L
L-12.7 cm (L-5 in.)
L
L
81.28 cm (32 in.)
81.28 cm (32 in.)
81.28 cm (32 in.)
39
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