Modular electronics for cylinders

A ruggedized canister system comprising:

• a cylindrical housing having a longitudinal axis;
• a modular electronic rack system disposed within said cylindrical housing, said modular electronic rack system having a backplane and a plurality of rib members radiating outwardly from said backplane, said backplane having a longitudinal axis generally parallel to said longitudinal axis of said cylindrical housing, said plurality of rib members extending from said backplane at a proximal end in a direction generally orthogonal to said longitudinal axis of said backplane toward a distal end;
• an input/output device extending along at least a portion of said backplane, said input/output device having a power input and a signal output electrically coupled thereto;
• a plurality of electronic slots disposed at a position generally within a space define by said plurality of rib members when viewed in a direction along said longitudinal axis of said cylindrical housing, each of said plurality of electronic slots being configured to physically and operably receive an electronic card therein, each of said plurality of electronic slots being electrically connected to said input/output device to establish electrical communication between the electronic card and said input/output device.