A connector system for reducing particulate matter may include a first unit for supplying signals and a second unit for receiving and/or relaying the signals. The signals may be for power generation and/or communications. A coupling may be positioned between the first unit and second unit. The coupling may include a center pin attached to the first unit and for receiving a signal at a first potential. The coupling may further include an outer case attached to the first unit and for receiving a signal at a second potential. The coupling may also have a seal and a spring. The seal and spring may surround the outer case. The spring may engage the second unit and may pass signals between the first unit and the second unit. The spring may comprise a canted coil spring for supporting load forces and for passing electrical current.