Abstract: A receptacle fixture for equipment units each having a housing containing plug-in component assemblies characterized by the fixture comprising a pair of spaced, elongated spars forming a cable chute and having a contact strip with a first group of wrapping posts protruding from a surface thereof for forming connections with central office and ring wiring and having a bracket-like mounting assembly for each of the equipment units spaced along the spars. The mounting assemblies include guide rails for receiving the housing of the equipment unit and fastening means for attaching the housing on the fixture. Each housing has a printed circuit board provided with internal wiring for the equipment unit disposed on the side of the housing adjacent the contact strip with the printed circuit board having openings for receiving the wrapping posts of the contact strip so that they will protrude into the interior of the housing.