Try to set the Data Master

[Chuck - Raymarine - Moderator]

Kevin,

The MFD's must indeed be interfaced to one another via via Ethernet communications per my initial response. Should each of the MFD's each have one unused Ethernet NETWORK (RayNet (M)) socket, then these MFD's may be simply be interfaced to one another via an appropriate length of RayNet (F) to RayNet (F) Cable. However, should this not be the case, then an HS5 RayNet Network Switch would need to be installed onboard. The MFDs along with two or more of the devices which are presently interfaced to the MFDs' Ethernet NETWORK sockets would then need to be interfaced to the HS5 RayNet Network Switch.