Topcon X30/AGCO C3000 COM2 serial port wiring harness

[Northern farmer]

Our AGCO C3000 wiring harness does not include wiring for the COM2 port for GPS/NMEA output. My intention was to save a couple of hundred Euros by building the cable from parts.

I failed to find any information about the pin-out for the screen connectors. Someone must have built their own cable, I'd be glad if this knowledge was shared. Since I only need the serial output, I could simply measure the pin, switch output on and off and see which pin follows the settings but knowing the pin assignment in advance would make things easier.

I assume the plug housing is an AMP 3-1437290-8 part, a 26 pin connector with two mechanical keys, could anyone confirm?

Or perhaps there is another ready made harness at a lower cost, an after market part or a spare part under some other brand name?

A pity none of this is described in the manual (C3000 or X30).

 

[Northern farmer]

Santa Claus had an early visit and brought me the pin diagram, thank you. Nothing this forum could not solve!

Merry Christmas everyone.

 

[Robt]

Shame you aren't in U.K. Com 2 is standard on the harness we install

 

[Northern farmer]

Right. I believe the harness would have had the COM2 port also if it had come from our Topcon dealer.

Unfortunately I never got any quote from our Topcon dealer, gave him more than a month to find the price but it was not sufficient. Had no choice but to choose the AGCO branded screen and receiver (the offer for a 5 year warranty for the tractor was closing). I have to say that I'm really pleased with the price even if there was no competition.

 

[Northern farmer]

A parts price update here. I bought the necessary hardware to build these serial data/NMEA cables to connect the Amazone GPS Switch to the AGCO C3000 screen.

I got three cables at about 65 Euro total cost. The lowest offer for a genuine spare part I got was from my AGCO dealer, 230 € per cable, 690 Euros for three. Spent an hour to build three cables. I wish an hour at the field would pay equally well.

Made it with some help from this forum! Thank you.

 

[jordigb]

Hello, can you send the pinout of the screen? I need NMEA input for a topcon X25 display I think it's the same as the x30. thanks

 

[Northern farmer]

Hello, can you send the pinout of the screen? I need NMEA input for a topcon X25 display I think it's the same as the x30. thanks

Is it NMEA input to a Topcon X25 screen or NMEA output from the screen to some other device?

The C3000 screen/X30 second connector pins for COM2 are:
1 RX
2 TX
3 RS232 gnd
8 RTS
9 CTS

If it is NMEA to some other device, you should not need more than ground and TX.

 

[jordigb]

OH nice.
it is to get the NMEA data from other GPS to topcon display
AMP 3-1437290-8 Is this the connector that I have to buy?
Thanks.

 

[Northern farmer]

OH nice.
it is to get the NMEA data from other GPS to topcon display
AMP 3-1437290-8 Is this the connector that I have to buy?
Thanks.

Yes, this is the connector housing. Remember to purchase pins too.

Which tasks is the display handling? Auto-steer too? I've never tried the external GNSS source for auto-steer, please report how it goes.

 

[jordigb]

no, I'm only going to use it for isobus with section control, for automatic steering I'm using FJDYNAMICS, it works very well, I want to send the nmea data from FJDynamics to the topcon screen

 

[lostdog]

You all sound quite clued on the C3000/x30 screen.

Is there a way to get the work trigger to be switched from the tractor? I don't currently have a work trigger I just leave it painting but it would be useful if it would come on and off as required. Also if there is a way what cables etc would I need? Tia

 

[Northern farmer]

I have not looked at the wiring harness details but an external work switch certainly is possible as our C3000 has that (was factory installed).

 

[lostdog]

Thanks , do you know where the 12v switch signal needs to inputted?

 

[Northern farmer]

Thanks , do you know where the 12v switch signal needs to inputted?

See this thread:

Using Deutz / Topcon master switch control from an external switch

Hi I have a Deutz 6165 with Agrosky Topcon precision steering

thefarmingforum.co.uk

Says it is #25 pin (on the main connector). Odd that Topcon defines this as "Pin 25: DIO 2: Digital Output" as it was an output pin. Says DIO though as it would be configurable which it probably is.