Up to 16 or 32 digital input and output channels can be connected directly to the I/O (35 mm design) with a front connector with single wires. The single wires are fitted with screw-type contacts in the front connector and are cut off straight at the other end. The cores have a cross section of 0.5 mm² and can be easily assigned since they are coded in accordance with the pin designations on the front connector. Cable ties combine the single cores into a bundle.

The front connectors with single cores are available in the following lengths: 2.5 m, 3.2 m, 5.0 m, 6.5 m, 8.0 m and 10.0 m. Special lengths available on request.

The single cores are available in different versions:

• Core type H05V-K is used for industrial applications.
• The UL/CSA-approved core is available for exports to North America.
• The halogen-free version is used where low smoke gas density in the event of fire is required, e.g. in building automation

SIMATIC TOP connect for S7-1500/ ET200 MP, flexible connection