Raymarine NMEA 0183 connections

[Seastoke]

So I have bought a generic Antenna and need to connect to a raymarine lead. The Antenna has
Red
Black
Green
White
The Raymarine lead has
Brown
Green
White
Yellow
Black
I am lost what goes where please help.

 

[Baggywrinkle]

Do you have the names of the two components you need to connect?

I can deliver an answer in a few mins if you have this data. Wire colours are often device dependent.

As a guess .... your generic component

Red - +12v
Black - ground
Green - signal ground or RX or TX
White - TX or RX

Raymarine colours are connector dependent ...

 

[Seastoke]

 

[Seastoke]

 

[Seastoke]

It's the raymarine lead wires I need to connect to

 

[Mr Googler]

GPS red and black to power


Green and white to green and white on the raymarine end

If it doesn’t work…swap the green and white around. You might need to set the baud rate correctly in your raymarine kit too

 

[Mr Googler]

 

[Seastoke]

Thank you so although the plotter has a separate feed the names lead needs it’s own feed

 

[Seastoke]

Thank you so although the plotter has a separate feed the names lead needs it’s own feed

Thanks Mr G , u win beer of the Day which might not be available on the IOM , It’s Brewdog 8%. Nice.

 

[Baggywrinkle]

NMEA 0183, until version 2.0 (1992), used a single ended RS-232 interface with one TX line and one RX signal line and ground line used as reference for TX and RX signals. Therefore, old devices have only three wires. - This is your Antenna, It states RS-232 on the label and the fourth wire (red) powers the device. The black is the ground reference for power and signal.

Since Version 2.0, NMEA 0183 has been based on a differential, RS-422 interface, which has two RX lines (RX+ and RX-), and two TX lines (TX+ and TX-) and a shield which is usually grounded. This is your Raymarine kit.

Devices of different versions can be connected, but with one cautionary note. TX- is not equal to a ground line. Voltage on the TX- line changes from 0 to 5V, and connecting this line to ground line can cause a short circuit.

The connection scheme you want is bottom right of the options below ... RS232 -> RS422



White on Antenna goes to White on Raymarine (assuming @Mr Googler has the correct Raymarine diagram) - This is the signal line.
Black on Antenna goes to Green (RX-) on Raymarine and the Raymarine Screen (pin 5) - this will stop the connection floating and is the ground reference.

If connected as @Mr Googler suggested, the green wire on the Antenna is a receive (listener) - connecting it to the differential signal on the RS422 of the Raymarine - also a receive (listener) - means the line will float as nothing is driving it. May cause transmission errors as the Raymarine device is expecting the other device to drive it, but the Antenna is not driving it as it is the Antennas receive wire.

This is basically how I connected my RS232 Standard Horizon gear to my RS432 WiFi Router on the last boat .... the diagram above comes form the Router handbook on connecting legacy NMEA0183 devices.

 

[Seastoke]

NMEA 0183, until version 2.0 (1992), used a single ended RS-232 interface with one TX line and one RX signal line and ground line used as reference for TX and RX signals. Therefore, old devices have only three wires. - This is your Antenna, It states RS-232 on the label and the fourth wire (red) powers the device. The black is the ground reference for power and signal.

Since Version 2.0, NMEA 0183 has been based on a differential, RS-422 interface, which has two RX lines (RX+ and RX-), and two TX lines (TX+ and TX-) and a shield which is usually grounded. This is your Raymarine kit.

Devices of different versions can be connected, but with one cautionary note. TX- is not equal to a ground line. Voltage on the TX- line changes from 0 to 5V, and connecting this line to ground line can cause a short circuit.

The connection scheme you want is bottom right of the options below ... RS232 -> RS422

View attachment 181127

White on Antenna goes to White on Raymarine (assuming @Mr Googler has the correct Raymarine diagram) - This is the signal line.
Black on Antenna goes to Green (RX-) on Raymarine and the Raymarine Screen (pin 5) - this will stop the connection floating and is the ground reference.

If connected as @Mr Googler suggested, the green wire on the Antenna is a receive (listener) - connecting it to the differential signal on the RS422 of the Raymarine - also a receive (listener) - means the line will float as nothing is driving it. May cause transmission errors as the Raymarine device is expecting the other device to drive it, but the Antenna is not driving it as it is the Antennas receive wire.

This is basically how I connected my RS232 Standard Horizon gear to my RS432 WiFi Router on the last boat .... the diagram above comes form the Router handbook on connecting legacy NMEA0183 devices.

View attachment 181128

Thanks Baggy.

 

[Mr Googler]

Is it working….thats the main thing

 

[Seastoke]

Is it working….thats the main thing

Well it’s working in the saloon ,fitting tomorrow as pissing down here.

 

[Seastoke]

Is it working….thats the main thing

Did you have the brew dog.

 

[PaulRainbow]

GPS red and black to power


Green and white to green and white on the raymarine end

If it doesn’t work…swap the green and white around. You might need to set the baud rate correctly in your raymarine kit too

White on the GPS goes to white on the plotter, as you say.

But the greens should not be connected together. There is no need to connect the GPS green at all.