Help connecting Matsutec HP-33A to Opencpn

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sailor1924

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I've recently purchased a Matsutec HP-33A GPS/AIS transponder. I have made a patch cable using the included NEMA cord pin out and splicing it to a Serial DB-9 plug, I have continuity per the correct pin out diagram in the user manual.
I am trying to get Opencpn 4.4 to recognize the either the GPS or the AIS using the Serial connector dialogue on a Dell laptop running XP Pro service pack 3 and also on a Panasonic Toughbook CF-30 running Windows 7 Pro.
I'm stumped. I can't see any connection in either laptop on the NEMA debugger. I don't see the Com ports listed in device manager. I suspect that my port assignment is not working correctly. I'm sure that others are using this unit with Opencpn and appreciate some wiser head then mine explaining to me how to get it working.
 
sailor1924 said:
I've recently purchased a Matsutec HP-33A GPS/AIS transponder. I have made a patch cable using the included NEMA cord pin out and splicing it to a Serial DB-9 plug, I have continuity per the correct pin out diagram in the user manual.
Click to expand...

Are you absolutely sure you got the wires the right way round? The labels "Tx" and "Rx" in the circuit diagram refer to the connected device, not the HP-33A. Guess how I know this.
 
Make sure your serial to USB converter is being shown as a com port on your pad before trying to sort out your connections. I had a problem with a newer one that was not recognised automatically by windows.
 
TSB240 said:
Make sure your serial to USB converter is being shown as a com port on your pad before trying to sort out your connections. I had a problem with a newer one that was not recognised automatically by windows.
Click to expand...

Thanks, I'm not using a USB converter. I've made a serial patch cord as described in the long thread above.
 
JumbleDuck said:
Are you absolutely sure you got the wires the right way round? The labels "Tx" and "Rx" in the circuit diagram refer to the connected device, not the HP-33A. Guess how I know this.
Click to expand...

Thanks, I tried cross connecting the tx and rx pins forth and back on the serial connector.
 
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