Insertion type connector

The present invention is inserted with the housing (7), designed for connection to two cores of the twisted pair cable (5), and at least two contact elements fixed to the housing (7) (13) in the form connector (4), housing (7) forms a guide, to the core (5) is inserted type connector that is fixed in a twisted state to continue the twist of the twisted pair cable (4) by the guide. The present invention further provides a system and a such insertion-connector and twisted pair cables, and relates to a method of manufacturing such a system.