Dual-barrel, connector jack and plug assemblies

Disclosed herein are dual-barrel, connector jack and plug assemblies. Particularly, plug assemblies having two single barrel connectors that are situated side-by-side. Each barrel may include two or more contacts for receiving and transmitting DC IN+ electrical signals. Further, each barrel may include two or more contacts for receiving and transmitting DC IN− electrical signals. Inside each barrel connector may be disposed center pins. The barrel connectors may be cylindrically-shaped and configured to mate to a dual-barrel, connector jack assembly as described herein. A bridge component may be disposed between the barrel connectors for preventing the plug assembly from being inserted into the jack assembly in the wrong orientation. The bridge assembly may be shaped to prevent improper insertion into a corresponding aperture of the jack assembly.