itc5 issue

[Chuck - Raymarine - Moderator]

Welcome to the Raymarine Forum meriachee,

The reported issue may be the result of any of the following:
- the iTC-5 has been installed as a spur instead of as a backbone component ... connect the iTC-5's backbone socket(s) to the backbone using an appropriate length of SeaTalkng backbone cable.
- insufficient power ... connect the vessel to shore power, fully charge the vessel's batteries, and afterwards and while still connected to shore power, test the system; verify that each of the system's marine electronics circuits have been switched ON.
- an incorrectly terminated SeaTalkng backbone ... verify that the backbone feature two (no more, no less) terminators and that they have been installed within the backbone sockets forming the extreme opposite ends of the backbone
- an incorrectly located power insertion ... the backbone's power insertion spur socket should be located at the approximate midpoint of the backbone's LEN load
- old software within one or more of the devices which have been interfaced to the SeaTalkng backbone ... verify that all components have been updated with the latest available Raymarine product software updates
- a failure within one of the SeaTalkng / NMEA 2000 communications software of one of the devices which have been interfaced to the SeaTalkng backbone ... disconnect all devices from the backbone except for the MFD and one other device. Use the MFD's Select Devices diagnostics feature to verify communications with the system's other devices .... add devices one by one and check communications after each addition ... should the addition of a device cause communications to cease, then the device should be disconnected and serviced.