Home / Signatrak DCC Product 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 Specifications Brand Signatrak Condition New 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 Delivery & Returns Please see the delivery and about us page for delivery charges and options, also you can add the itemt o basket to see delivery options Ribbon Cable to connect SIGM20 to 2xBD4 Item in Stock (12 Available) £4.00 Login to add this product to your wishlist.