Pluscon-HCM by Phoenix Contact is a modular contact inset system for heavy-duty B-shape plug connectors. The modules in a metal frame can be connected with various electrical ratings and pneumatic modules for hoses with different diameters. Contact inset modules for 50 W coaxial contacts are available besides those for electric and pneumatic modules. Up to four coaxial contacts are provided for each contact inset module. The new plug connector system may also be used for applications where the power supply and signal transmissions for images and sound are combined in one connector.