4-Post Rack with Integrated Intake/Exhaust Regions

An electronic equipment rack comprising:

• a support structure comprising a plurality of post members configured to form a cage having a front, a back, a top, a bottom, a first lateral side, and a second lateral side and defining a space therebetween;
• a first plenum arranged along the first lateral side of the support structure;
• a second plenum arranged along the second lateral side of the support structure;
• and
• a plurality of baffles located within each plenum and adjustable to selectively delimit a first volume of an intake duct associated with the first plenum and a second volume of an exhaust duct associated with the second plenum wherein an air flow path is established from the intake duct to the exhaust duct across electronic equipment supported within the cage.

An electronic equipment rack comprising:

• a support structure comprising a plurality of post members configured to form a cage having a front, a back, a top, a bottom, a first lateral side, and a second lateral side and defining a space therebetween;
• an intake duct located along the first lateral side in fluid communication with the space;
• an exhaust duct located on the second lateral side in fluid communication with the intake port via the space;
• a baffle arrangement configured to isolate a hot side of the space associated with one of the front or back of the support structure from a cool side of the space associated with another of the front or back of the support structure by creating a thermal barrier within the space to promote a temperature differential within the space wherein a first volume of the space exhibits a first temperature which is lower than a second temperature exhibited by a second volume of the space.