Patent ID: 8922992

Claim:
An electrical equipment chassis, the chassis comprising: a frame open to a first side of the chassis and a second side of the chassis opposite the first side, the frame separating the chassis into a first region, a second region, and a third region; the first region being open to the first side of the chassis and configured to receive one or more first power supply modules for supplying power to the chassis; the second region being open to the first side of the chassis, adjacent to the first region, and configured to receive one or more first networking modules and a second networking module, the one or more first networking modules and the second networking module being oriented with a first orientation; the third region being open to the second side of the chassis and configured to receive one or more fan trays and one or more third networking modules, the one or more third networking modules being oriented with a second orientation orthogonal to the first orientation; and a power distribution board located near a mid-plane of the chassis and including one or more power module connectors for coupling the one or more first power supply modules to the power distribution board and one or more first power connectors for coupling the one or more first networking modules and the second networking module to the power distribution board; wherein: the one or more fan trays each includes one or more fans; the power distribution board at least partially separates the first region from the third region and only partially separates the second region from the third region; at least one of the second networking module, the one or more fan trays, or the one or more third networking modules adds stability to the frame; and the chassis is sufficiently open to permit air flow from the first side to the second side.