IBM SAN50C-R, Installation, Service And User Manual

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v The minimum vertical rack space per chassis is 2 RU (rack unit), equal to 3.5
inches (8.89 cm).
Note: The side rail-mount brackets provided with the IBM SAN50C-R switch
require an additional height of 0.75 inches (1.9 cm). They are required during the
installation of the IBM SAN50C-R switch only, and can be removed or left installed
once the front-mounting brackets are securely fastened to the mounting rails.
Requirements Specific to Two-Post Telco Rack
In addition to the requirements listed in the “General Requirements for Racks”
section on page 1-1, two-post Telco racks must meet the following requirements.
v The minimum width between the two mounting rails must be at least 17.75
inches (45.1 cm).
v
The distance between the chassis air vents and any walls should be 2.5 inches
(6.4 cm).
Required Equipment
You need the following equipment for this installation.
v Number 2 Phillips screwdriver
v Tape measure and level (to ensure shelf brackets are level)
Rack-Mounting Guidelines
CAUTION:
If the rack is on wheels, ensure that the brakes are engaged or the rack is
otherwise stabilized.
If installing this kit in an EIA rack, attach the switch to all four rack-mounting
rails; the EIA rails may not be thick enough to prevent flexing of the shelf
brackets if only two rails are used.
Before rack-mounting the chassis, ensure that the rack meets the following
requirements.
v The specifications listed in the “Rack Requirements” section on page 1-1.
v The depth of the rack between the front-mounting and rear-mounting rails is at
least 18 in. (45.7 cm) but less than or equal to 30 in. (76.2 cm). This is specific to
four-post EIA racks.
v The airflow and cooling are adequate and there is sufficient clearance around the
air vents on the switch, as described in Appendix B, “Technical Specifications.”
v The rack has sufficient vertical clearance for the chassis plus 2 RU for the shelf
brackets, and any desired clearance for the installation process.
v The rack meets the minimum rack load ratings per rack unit for rack type. Rack
of EIA (4-post), 7.5 lb (3.4 kg)
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SAN50C-R Installation, Service, and User Guide