Mercury – CAN Data Harness (10-Pin, One Resistor) | 30-Foot SmartCraft Lead | 84-879980T30

Overview

Large helms and long rigging runs often need more than just extra cable—they need a clean termination point built right into the harness. The Mercury 84-879980T30 CAN Data Harness provides thirty feet of SmartCraft cable with a single integrated resistor, giving the network both the reach and the proper end-of-line load it needs for reliable communication. It carries CAN P, CAN X, and CAN H signals through the yellow 10-pin connector and keeps the system steady across long distances.

Key Features

• 30-Foot Extension – Adds major length for long SmartCraft routing runs on larger or multi-station boats.
• Integrated End Resistor – Supplies one side of the SmartCraft backbone with proper termination.
• Yellow 10-Pin Connector – Standard SmartCraft plug carrying CAN P, CAN X, and CAN H.
• Full CAN Channel Support – Moves all SmartCraft communication lines cleanly over the long run.
• Backbone Stability – Helps prevent signal issues caused by missing or incorrect termination.
• OEM Connector Quality – Factory SmartCraft ends ensure a solid, marine-ready connection.

Compatibility

• SmartCraft CAN P networks
• SmartCraft CAN X networks
• SmartCraft CAN H networks
• Yellow 10-pin SmartCraft harness locations needing built-in termination

Performance & Practical Benefits

This harness is built for installations where the SmartCraft data line has to travel a long distance—across wide consoles, deep rigging chases, or multi-level layouts. The integrated resistor keeps the network properly loaded, preventing communication dropouts or flickering data that can happen with missing termination. Once in place, the harness creates a stable, predictable CAN link that holds up in real use.

Why Buy OEM

SmartCraft communication is sensitive to improper termination and cheap connectors. Mercury’s OEM harness uses the exact resistor value, pin alignment, and shielding the system expects, keeping CAN signals clean even over a 30-foot run. Aftermarket options often cause intermittent faults or noisy data, but the factory harness stays reliable season after season.

FAQ

Q1: When is a 30-foot harness with a resistor the right choice?
When the SmartCraft backbone needs an end-point terminator and must span a long routing distance.

Q2: Does this replace a separate terminator plug?
Yes. The resistor is built into the harness itself.

Q3: Will this change how SmartCraft modules behave?
No. It ensures proper termination and clean communication but doesn’t alter module function.

Q4: Can this be used on DTS setups?
Yes—any yellow 10-pin SmartCraft system that needs both extra length and built-in termination.

Q5: Is installation complicated?
No. It plugs inline using OEM connectors and routes like any standard SmartCraft cable.