Old 02-01-2012, 05:41 AM
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Originally Posted by alwayssomewhere View Post
Q1&Q2: on installation manual, "NMEA 0183 devices must all be wired to one chartplotter on the network. The data is then shared over the network to other connected chartplotters."

Bonus question:As far as I know, GMI10 can not format NMEA0183 to NMEA2000, while 4210 can. Maybe you should connect intelliducer to one 4210, it will format depth data to NMEA2000 data,then GMI10 can share depth data over NMEA2K network. On Owner's Manual, "You can turn on, configure, or turn of output bridging. Output bridging occurs when a chartplotter takes NMEA 0183 data it receives from any source, formats it into NMEA 2000 data, and sends it over the NMEA 2000 bus.".
OK, so I can wire all the devices to one chartplotter, as well as the intelliducer. That makes 6 devices:

1. DSC (plotter transmit and receive),
2. AIS (plotter receive only--(it's a receive only AIS))
3. Intelliducer (plotter receive only)
4. KVH compass/heading sensor (plotter receive only)
5. Autopilot (older Robertson unit--plotter transmit only)
6. GPS17 receiver, dedicated port.

Can one port listen to more than one device? For example, can 2 and 3 share the same receive port on the plotter? I understood that you can have multiple listeners to a single talker but not the other way around.

If I can't double up on the ports, then can I use the transmit only output of the second plotter to drive the autopilot?

I did not have these issues on my other boat since I did not have a heading sensor and the autopilot was not interfaced to the plotters. AIS, DSC, GPS were all run to different plotters on the network and everthing was shared.