Raymarine RayNet and Ethernet cables – Installation, splicing, and troubleshooting

Raymarine high-bandwidth products are designed to communicate via marinized Ethernet components. Cables such as RayNet, SeaTalkhs, and Digital Radar use T568B termination and are optimized to support Ethernet communication between compatible Raymarine devices with RayNet, SeaTalkhs, RJ45, or Digital Radar sockets.

Important cable recommendations

• Avoid cutting or splicing Raymarine cables to maintain maximum performance.
• If an RJ45 connector must be removed, replace it with a shielded RJ45 (M) connector T568B.
• When reconnecting RayNet, SeaTalkhs, or Quantum data cable, use an R32142 RJ45 to RJ45 waterproof coupler or a marine-grade Ethernet junction box.
• For digital radar cable that is cut, also reconnect power leads and shield correctly.

Common faults and preventive measures

One of the most common causes of network failures is damaged Ethernet cables due to excessively tight bends (less than 6" radius). This can cause permanent damage. Inspect cables regularly and replace suspicious cables.

Troubleshooting with Ethernet testers

When troubleshooting Raymarine Ethernet communication, end-to-end cable testing with an Ethernet tester (e.g., Extech CT100, Hobbes Netfinder Pro) is recommended. Since these testers use an RJ45 (M) connector, adaptation may be required:

• RayNet (F): A80162 RayNet (M) to RayNet (M) + A62360 1m RayNet (F) to RJ45 (M).
• SeaTalkHS (M): A80160 SeaTalkHS (F) to RayNet (F) + A80162 + A62360.
• SeaTalkHS (F): E55049 1.5m SeaTalkHS (M) to RJ45 (M).
• RJ45 (F): E06054 1.5m RJ45 (M) to RJ45 (M).
• RJ45 (M): No adaptation required.

For digital radar cable, connect the Ethernet tester's transmitter to the RJ45 (M) in the radome (power off). Adapt if necessary with RayNet adapters.

RayNet and RJ45 Pinout

RayNet Plug Pinout:

Digital radar cable (radar transducer end) Pinout:

Digital radar cable RJ45 Pinout: