The ITT CANNON 2DC-79S is a circular connector series designed for demanding military and aerospace applications. It features low insertion force contacts, polarizing posts, and field-replaceable inserts. The connector is available in both environmental and non-environmental versions, and supports various contact types including crimp, coax, power, and printed circuit. Material specifications include aluminum alloy shells, thermoset insulators, and gold-plated copper alloy contacts. Ordering options include shell size, connector layout, mounting modifiers, and polarizing positions.