products for industrial process automation.
Control Technology Inc. (CTI) manufactures the CTI 2500 Series™ Programmable Controller System—a compatible replacement for the Simatic® 505.

The 2500-RFC is a specially constructed cable used to connect the Simatic® 505-6860 RS-485/ RF I/O Channel Converter to CTI 2500 Series™ Processors. The cable uses special shielding and terminations to provide the best possible communications performance with RF networks.