Cisco MDS 9100 Series Hardware Installation Manual page 52

Cisco MDS 9000 Family Telco and EIA Shelf Bracket
Note
This optional kit is not provided with the switch; to order the kit, contact your switch supplier.
This section describes the procedure for installing a Cisco MDS 9148S switch in a rack or cabinet using
the optional Telco and EIA Shelf Bracket Kit. This section includes the following information:
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Rack-Mounting Guidelines
Caution
If the rack is on wheels, ensure that the brakes are engaged or the rack is otherwise stabilized.
Caution
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 cabinet or rack meets the following requirements:
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Rack Type
EIA (4-post)
Telco (2 post)
Cisco MDS 9148S Multilayer Switch Hardware Installation Guide
1-46
Rack-Mounting Guidelines, page 1-46
Before Installing the Shelf Brackets, page 1-47
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Required Equipment, page 1-47
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Installing the Shelf Bracket Kit into a Four-Post EIA Rack, page 1-49
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Installing the Shelf Bracket Kit into a Two-Post Telco Rack, page 1-47
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Installing the Switch on the Shelf Brackets, page 1-50
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Removing the Shelf Bracket Kit (Optional), page 1-51
The specifications listed in the
The depth of the rack between the front 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 cabinets or racks.
The airflow and cooling are adequate and there is sufficient clearance around the air vents on the
switch, as described in Appendix 1, "Technical Specifications."
verify if you are installing the switch in an enclosed cabinet.
The rack has sufficient vertical clearance for the chassis plus two rack units for the shelf brackets,
and any desired clearance for the installation process.
The rack meets the minimum rack load ratings per rack unit (RU) listed in the following table.
"Cabinet and Rack Requirements" section on page
MDS 9148S
7.5 lb
15 lb
Chapter 1 Cabinet and Rack Installation
1-43.
This is particularly important to
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