C&K is a leader in switches used for machine to machine (M2M) and Industry 4.0 applications such as field bus communication and internet gateways. For configuration and addressing of field bus products such as I/O modules and modular terminals, C&K offers a variety of standard and rotary DIP switches including the standard pitch SDA series or the half pitch TDA series. Both come in low profile surface mount packages. The TDA offers from 1 to 10 positions and the SDA offers from 1 to 12 positions. The side mounted BPA series is also commonly used. Available in surface mount or through hole packages, it comes in 1 to 12 positions with a contact system that eliminates the need for tape during the wash process. If rotary switches are used, C&K offers the RTE and CD series. Both come in compact packages and offer a variety of outputs including BCD and Hexadecimal. The RTE is offered in 4, 10, or 16 positions and the CD is offered in 8, 10, or 16. For industrial modems and gateways, the side mounted KMS series is often used as a reset switch. C&K also offers a full line of high performance SIM card connectors including the CCM03 series for wireless communication requirements.