On the front connector with single cores, up to 16 or 32 digital input and output channels can be connected directly with the I/O. The single cores are fitted with screw contacts or crimp contacts and are cut off straight at the other end. The cores can be easily assigned since they are coded in accordance with the pin designations on the front connector.

The single cores are available as H05V-K version or with UL/CSA certification.

The UL/CSA single cores are certified in accordance with UL 1007/1569 or TR64.