Component Guide

Inlet Ducting

Net-Direct

™

Passive In-Cabinet Ducting delivers cooling air directly

from the cold aisle into the intake fans of switches with side-to-side

cooling airow. Inlet ducting prevents hot air recirculation within the

cabinet and enables reduced inlet temperature for improved

performance and cooling efciency. Inlet ducting is used for

containment systems such as VED, CAC, and HAC.

Application: Use for a containment application in Greeneld and

Browneld environments without disrupting existing in-cabinet

equipment and cabling.

Benets:

• Switch Inlet Ducts enable containment strategies:

– Effectively managing airow on side-to-side airow devices

– Channeling cold air directly into the switch intake

• Switch Inlet Ducts enable reduced energy consumption:

– Lowering fan speeds on the switch

– Allowing higher data center supply air temperature

– Allowing higher chilled water temperature

Net-Direct

™

Passive In-Cabinet Ducting

Exhaust Ducting

Net-Direct

™

Passive Cabinet Exhaust Ducting routes exhaust air from

the side exhaust of the switch into the hot aisle, preventing hot air

from mixing with cooling air within the cabinet for improved switch

performance and cooling efciency. Exhaust ducts are used for

traditional hot and cold aisle applications. Net-Direct

™

Passive Cabinet

Inlet and Exhaust Ducting are Cisco certied.

Application: Use for a non-containment application in Greeneld and

Browneld environments without disrupting existing in-cabinet

equipment and cabling.

Benets:

• Channels hot exhaust air directly to the hot aisle away from the cold

air inlet of adjacent switches

• Completely passive solution requiring no energy to operate,

eliminating a point of failure

• Reduces fan power energy by allowing lower fan speeds, improving

switch reliability