Connection system

A connection system for laying and/or connecting core pairs of a multi-pair data cable to connection pairs of a data jack, comprising:

• an accommodating device for accommodating and sorting, without crossing over, the core pairs of the data cable, the core pairs being accommodated in the accommodating device so that that they are offset with respect to one another and so that a first core of all of the core pairs, when viewed in the clockwise direction or in the counterclockwise direction, is arranged in each case on the same side of a second core of the respective core pair;
• and
• an assignment device, comprising:
• on a first side, first connection pairs for making electrically conductive contact between them and the core pairs of the data cable which are accommodated in the accommodating device;
• and
• on a second side, second connection pairs for making electrically conductive contact between them and connection pairs of the data jack, the connections of the first connection pairs and of the second connection pairs of the assignment device being electrically conductively linked to one another, wherein
• the contact-making between the core pair, which is accommodated and sorted in the accommodating device, of the data cable and the connection pairs of the data jack being determined by the relative rotary position between the accommodating device, the data jack and the assignment device, which is connected therebetween.