RayNet to RJ45 - 100&';RayNet network cables are for connecting the Digital Sounder Module (DSM) sonar, SR100 Sirius Weather Receiver and additional compatible Raymarine Multifunction Displays.The RayNet connector is used for connecting network switches and SeaTalkhs devices to the multifunction display via RayNet cables. Also required for connecting a crossover coupler if only one device is being connected to the display&';s Network connector.Features: RayNet to RJ45 100&';