Home / Signatrak DCC / Ribbon Cable to connect SIGM20 to 2xBD4 Ribbon Cable to connect SIGM20 to 2xBD4 £4.00 Ribbon Cable to connect SIGM20 to 2xBD4 £4.00 Stock Status: In Stock Add to your Wish List Description 16-way ribbon cable terminated both ends to suit SIGM20 module. For connection to 1 or 2 Digitrax BD4 block detector board(s). Length may vary Attributes Brand: Signatrak Condition: New