32 Head signal controller plus 8 line Input/Output node for NMRA CAN bus LCC®. (maximum of 96 lamps) Compatible with JMRI for signal logic. Small package size. Just 1-¾" x 3-1/4" x 5/8". POC (Powered Over CAN) LCC® connections*. *Note: Requires a powered LCC bus. [20 ma. bus load] (plus any I/O load current such as LEDs) Uses Futaba J (polarized 3 wire) Servo extension cables between signal heads. Requires SSSB (Simple Serial Signal Bus) decoder/drivers at each signal head.