The accessories span from option boards for digital and analog I/Os to serial interface, KNX addressing accessory, cable fixing adapter and screw mounting accessory. The option board gives the user a unique opportunity to add features easily and in a cost-efficient way without increasing the footprint of the system.
Up to three option boards can be used on one CPU, depending on CPU type. All option boards are delivered with spring terminal blocks.
Two types of terminal blocks are available for the CPU onboard I/O.