Requirements Specific To Perforated Cabinets; Reference Perforated Cabinet; Requirements Specific To Solid-Walled Cabinets - Cisco MDS 9148V-K9 Hardware Installation Manual

Requirements Specific to Perforated Cabinets

For four-post EIA cabinets (perforated or solid-walled):
• The distance between the front door and front mounting posts should be a minimum of 3 in. (7.6 cm) to
• The distance between the outside face of the front mounting post and the outside face of the back mounting
• The distance between the rear of the chassis and the perforated rear door of the cabinet (required for
• No clearance is required between the chassis and the sides of the rack or cabinet (no side airflow).
• The amount of clearance required for interface cables is 3 in. (7.6 cm) minimum and module handles is
Requirements Specific to Perforated Cabinets
In addition to the requirements listed in the
cabinets with front-to-back airflow must meet the following requirements:
• The front and rear doors must have at least a 60 percent open area perforation pattern, with at least 15
• We recommend that the roof be perforated with at least 20 percent open area.
• We recommend an open or perforated cabinet floor to enhance cooling but it is not required.

Reference Perforated Cabinet

A perforated cabinet that conforms to the above requirements is available from Rittal Corporation:
Rittal Corporation
One Rittal Place
Springfield, OH 45504
Phone: (800) 477-4000
Cabinet P/N: Rittal 9969427
Cabinet description: PS-DK/OEM Cabinet Assembly, 1998 x 600 x 1000 (H x W x D)
(42U)

Requirements Specific to Solid-Walled Cabinets

In addition to the requirements listed in the
cabinets must meet the following requirements:
• A roof-mounted fan tray and an air-cooling scheme in which the fan tray pulls air in at the bottom of the
• Nonperforated (solid and sealed) front and back doors and side panels to be present so that air travels
• The overall cabinet depth to be 36 to 42 in. (91.4 to 106.7 cm) to allow the doors to close and to facilitate
Cisco MDS 9148V-K9 Switch Hardware Installation Guide
14
allow for the bend radius of FC port fibre-optic patch cables.
post should be 26 to 32 in. (66 to 81 cm) to allow for installation with the Cisco rack mounting kit.
airflow in the cabinet, if used) should be a minimum of 3.0 in. (7.6 cm).
1 in. (25 mm) minimum.
sq. in. (96.7 sq cm) of open area per rack unit of door height.
cabinet and sends it out from the top, with a minimum airflow of 849.5 m
through the fan tray, to be available.
predictably from bottom to top.
adequate airflow.
General Requirements for Cabinets and Racks
General Requirements for Cabinets and Racks
Cabinet and Rack Installation
section, perforated
section, solid-walled
3
/h exiting the cabinet roof