Mercury - CAN Data Harness (10-Pin, One Resistor, Non-DTS) 15-Foot SmartCraft Lead 84-879981T15. Overview. Some SmartCraft CAN P networks need a longer run and a built-in termination point to stay stable. The Mercury 84-879981T15 CAN Data Harness handles both at once. With fifteen feet of blue-connector SmartCraft cable and a single integrated resistor, it gives the network the correct load on one end while providing enough length to route through wider helms or longer rigging paths. It keeps th