The wiring closets at Mount Holyoke include the following:

• Fiber optic cables
• Electrical
• Video
• Data
• Door access control
• HVAC
• Telephone
• Alarm systems: intrusion, fire, door

While room for all of these system should be considered, there may be a need for additional wiring closets in a building because of the requirement for data that the dataports be no more than 87 meters from the patch panel in the wiring closet. (While 90 meters is standard, we count on a 20 foot patch cable on the client end and a 6 foot cable from patch panel to equipment.)

Most of the components in a wiring closet can be wall mounted on plywood. The mounting plywood should be from two feet off the floor to seven feet off the floor. Data components should be placed in a 19 inch rack rather than wall or shelf mounting.

Space

• Data racks, one rack per 134 dataports.
  3 x 2.5 feet total. 1 x 3 foot for UPS on floor.
• Fiber: rack mounted (additional rack) or wall mounted: 3.5 feet
• Telephone: 4 feet
• HVAC controls: 3.5 feet
• Alarms, door access: 3 feet

Wiring

Wiring closet examples

This is an view of a wiring closet. Telephone and access control equipment are on the left, video cables are on the far left, a fiber optic panel is straight ahead, and a piece of the data rack is on the right.

Here are the front and back views of a data rack. There is no UPS for this equipment, but a UPS could be placed next to the rack. This rack holds 7x24 dataports. Normally we would recommend limiting a rack to 6x24 dataports and installing a second rack if there are more.

Fiber Panel in a rack for a closet with large amount of fiber.	Video connection on the left; a single fiber panel on the right.	Telephone panels with UPS for the DRUs shown at the very top.
	A larger video cable installation.

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