Overview

The Raymarine A80478 is a 0.3 m Y-cable for RealVision 3D split-pair transducer installations. It joins the port and starboard transducer leads into one connection for a compatible Raymarine 25-pin RV or RVM transducer input, which is the layout used when a boat is running a paired transducer set instead of a single all-in-one unit.

This short cable sits at the transducer side of the run, while the longer distance back to the display or sonar module is handled by the extension section of the transducer cabling. It is also used with RealVision Max 3D split-pair systems, so fit comes down to the transducer type and the 25-pin sonar connection on the Raymarine unit you are wiring to.

Key features

• 0.3 m (1 ft) Y-cable for Raymarine RealVision 3D split-pair transducer systems
• Joins separate port and starboard transducer leads into one feed for a compatible 25-pin RV or RVM transducer connection
• Also used with RealVision Max 3D split-pair transducers
• Made for installations where the main cable run back to the display or sonar module is completed with RealVision extension cables

Compatibility and fit

This cable fits Raymarine split-pair RealVision transducer setups where two transducer elements need to be combined before the run continues to the display or sonar module. It is the correct type of cable for installations built around a Raymarine 25-pin RV or RVM transducer connection.

If your boat uses a single all-in-one RealVision transducer, the wiring path is different and this Y-cable is not normally part of that install. It is a better match for boats using paired port and starboard transducers, including replacement jobs where the original junction cable has been damaged or lost.

Installation and setup

Each transducer lead connects to one of the Y-cable tails, and the remaining connection continues through the transducer cable run to the compatible display or sonar module. On split-pair systems, extension cables fitted between the transducers and the Y-cable need to be matched in equal lengths on both sides so the two elements are kept on the same cable path.

For cable planning, the full transducer cable run should stay within the 18 m maximum, including the captive transducer cable and any extensions. This is the kind of detail that matters on larger center consoles, pilothouse boats, and other installations where cable runs are longer and the transducer junction needs to stay neat and serviceable.