Preparation of round-sheath ribbon cables for mounting

The round-sheath ribbon cable is first cut to the required length by the user prior to mounting.

Round-sheath ribbon cable 1 x 16-pole

For the 2 x 8 I/O front connector module (20-pole), the cable sheath must be shortened by approx. 110 mm for connection to the upper socket of the module, and by approx. 70 mm for connection to the lower socket. For the 4 x 8 I/O front connector module (40-pole) and the front connector module for the Compact CPU (connector X1), the cable sheath must be shortened by approx. 115 mm for connection to the upper socket of the module, and by approx. 75 mm for connection to the lower socket. For connection to the connection module, approx. 40 mm must be removed from the cable sheath.

Round-sheath ribbon cable 2 x 16-pole

For the 2 x 8 I/O front connector module (20-pole), the cable sheath must be shortened by approx. 95 mm. For connection to the upper socket of the front connector module, the outer flat cable must be shortened to 95 mm, and for connection to the lower socket, the inner flat cable must be shortened to 40 mm. For the 4 x 8 I/O front connector module (40-pole) and the front connector module for the Compact CPU (connector X1), the cable sheath must be shortened by approx. 115 mm. For connection to the upper socket of the front connector module, the outer flat cable must be shortened to 115 mm, and for connection to the lower socket, the inner flat cable must be shortened to 75 mm. For connection to the connection module, approx. 100 mm must be removed from the cable sheath.

Connection of round-sheath ribbon cable to 16-pole connector

The flat cable is threaded into the 16-pole connector. The socket is fitted with a guide key. Pin 1 is marked with a triangle on the side of the guide key.

The flat cable must be inserted in such a way that the marked core of the flat cable ends above the triangle of the connector. The connector is an insulation displacement connector and can be simply pressed on.

The strain relief is then fitted to the connector on the connection module side of the round-sheath ribbon cable. After it has been pressed on, the round-sheath ribbon cable is laid back over the connector. The supplied strain relief can then be slipped over the round-sheath ribbon cable until it latches to the connector.

When connecting the 2 x 16-pole round-sheath ribbon cable to the 2 x 8 I/O front connector module (20-pole), the cable sheath is positioned within the latter. The round-sheath ribbon cable is secured to the front connector module using a cable tie.

Mounting of a round-sheath ribbon cable to a 16-pole connector, suitable for a connection module and S7-300 front connector modules.