Feedback module with current detectors on two-conductor networks with digital control. With connection cable supplied, pluggable on L88 (60883). Connection socket for other s 88 c.c. decoders (60882). 2x 8 inputs for current detectors (with optocouplers) in two different circuits, can be combined to form a circuit with 16 inputs. The L88 (60883) is required for connection to the CS2 or CS3!