Submittal

WW-CPWP-09, Rev.0, 09/2009

Deploying a Vertical Exhaust System

to Achieve Energy Efficiency and Support Sustainability Goals

Because fiber enclosures can extend beyond cabinet mounting rails, a flush-mount fiber enclosure is

recommended to prevent fiber tray overhang into the exhaust area. For patching environments, the

use of a flush-mount vertical patching system is recommended to route patch cords from server ports

directly to adjacent patching locations, leaving the exhaust area free from large cable bundles that

block the vertical duct channel opening (see Figure 6). For ToR switching deployments, cable

bundles can be efficiently routed up vertical side channels to minimize the amount of space these

bundles occupy in the exhaust area.

• Power Outlet Units (POUs) and associated cabling. Power outlet units and cabling should be

aligned with data cabling by placing POUs in opposite vertical spaces and positioning power cables

away from IT assets (see Figures 5 and 6). Cables should be sized at minimal lengths (18-24 inches)

to minimize cable slack and increase available space in the exhaust area.

Figure 6. Maximize VES Effectiveness by Properly Managing Overhead Pathways and In-Cabinet Patching

Example of proper data and power cable

management, positioning cables in vertical spaces

and keeping exhaust area clear

Equipment can reduce

the open exhaust area,

creating a choke point

that reduces VES

effectiveness

Overhead cabling

should be kept clear

of the exhaust area