Furuno 1824 to Raymarine S1000 interface

[C-Dawg]

I want to use the 1824 as the GPS feed for the S1000 heading sensor, but I'm not sure of the pin out for the connection. I have a 6-pin cable from Furuno that plugs into Data 3 and has a pin out of:
White = Data-H/HDG-H
Black = Data-C/HDG-C
Yellow= Clk-H
Green = Clk-C

The S1000 has a 9-pin D connector with pin out:
Pin 1 Brown = - ve out
Pin 2 Green = + ve out
Pin 3 Orange = - ve in
Pin 5 Blue = + ve in

Can someone tell me how these pin outs match up?

Thanks.

[journey on]

Since I have nothing to do ( actually, nothing I want to do) today, I downloaded the Furno 1824 installation manual. You know, looking at the various interconnect schematics as well as the system configuration diagrams, I can't find an NMEA 183 output. Data 1 thru Data 4 seem to be INPUTS of various/optional sensors. They may be NMEA 183, but that protocal doesn't use a clock. The only output that I can find it the Network connector, which is an Ethernet connection. I assume this is the same ethernet used in computers.

I'd make sure what data format the S1000 uses. I assume that this is the same as my Raymarine ST6000 autopilot, which is NMEA 183. Then I'd contact Furno and ask them how you get the correct output. You may need a converter.

This is the same interface I needed between Journey On's JRC plotter/etc. and the autopilot. Except the JRC unit has an output labeled NMEA 183.

I also point out the next post may solve your problem completely, so don't panic. Mfg's are using various proprietary data buses, and this is to what it leads.

Good luck and let us know how it turns out.

Boris

[C-Dawg]

I believe I have the answer after talking with Furuno tech support. I'm posting it here because I know many out there use the Raymarine S1000 and may want to interface it with a Furuno product.

In order to have radar overlay on the chartplotter there must be a heading sensor. To use the Raymarine autopilot heading sensor, use the black and white wires from port 3 of the chartplotter connected to the green and brown wires (pins 2 & 1 respectively) of the heading sensor.

To provide GPS feed to the heading sensor, use the white and black wires of port 2 of the chartplotter connected to the blue and orange wires (pins 5 & 3 respectively) of the heading sensor.

Since the Raymarine cable terminates in a DB-9, I plan to take the two Furuno cables and fabricate them into a single DB-9 connector, matching the pin outs. Hopefully that should all work.

If someone sees an error in my thinking, please let me know before I start cutting cables.

[journey on]

I'm a little confused. The S1000 doesn't have a heading sensor, it needs a GPS input to get position, heading and velocity input.

Your initial post said "I want to use the 1824 as the GPS feed for the S1000 heading sensor, etc." This I understand.

The next post says "To use the Raymarine autopilot heading sensor," and this is what I'm confused about. From where does this sensor data appear? My ST6000 autopilot has a heading sensor, but I don't think a S1000 does.

Furno told you how to get data into the plotter, but not how to get data out of the damn thing. Autopilot pins 1 & 2 are data out from the unit. Is this what you want?

Boris

[C-Dawg]

I was told by Furuno that port 2 from the chartplotter feeds GPS data into the S1000 and port 3 will read heading sensor data from the S1000 for the radar overlay.

So, as I understand it, pins 3 & 5 of the S1000 are data in from the Furuno device for the GPS feed, and pins 1 & 2 are data out to the Furuno device for the radar overlay.

Does that make sense or has Furuno confused me?

[thataway]

For radar overlay, you need a very accurate compass input--generally a rate gyro compass is utalized. The $990 Furuno PG1000 or PG 500R is such a heading sensor. Some of the RayMarine auto pilots use rate gyro sensors; such as the RayMarine Raymarine Gyroplus 2 Rate Gyro Module (a $800 item, which does not seem to be compatable with the S1000 RayMarine pilot), as Boris notes.

I fear that you will not get stable enough headings using the auto pilot. You are in a circular issue--using the GPS output (which is not adequate for the radar to begin with) to drive the autopilot, and then using the auto pilot to drive the radar overlay on the chart plotter.

I think you would be better off using the Furuno PG1000 compass, for the radar overlay, (and it might--unknown--help with the input to the auto pilot)

Also although we assume that all NMEA 0183 data is interchangable between manufactures, this is not always the case. I have had a few situations thru the years where one or two sentances in the protocol would not transfer, where all of the others would between manufacturers.
You probably can get the Furuno to drive the autopilot, but not the otherway around. There is a reason that manufactures make little quirks so that their units interface with each other better than with outer manufactuers.