ADC HiGain HMS-318 User Manual

Page 26

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Chapter 1: Product Description

December 20, 2004

1-14

LTPH-UM-1261-01

Figure 1-11

shows a typical example of a CO equipment rack layout using HMS-318 List 3 shelves. The figure

shows a rack with a fuse panel, eight HMS-318 List 3 shelves, each separated by a two rack space baffle with the
remaining shelf space open. As the figure illustrates, baffles should be placed between each shelf to reduce the
chimney heating effect (see

“Air Flow Guidelines” on page 1-15

for further information about cooling the HMS-318

List 3 shelf).

Outdoor cabinet applications require forced air to ensure proper cooling.

Figure 1-11. Central Office Equipment Rack Configuration

Note:

Refer to the respective ADC card user manuals to determine the maximum number of cards that can

be installed in a shelf before exceeding the maximum heat dissipation density of the telco-style equipment
rack configuration.

Fuse Panel

Shelf

Baffle

16A-12

61R1

Shelf

Baffle

Shelf

Baffle

Shelf

Baffle

Shelf

Baffle

Shelf

Baffle

Shelf

Baffle

Shelf

Baffle

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