Navman GPS to Horizon VHF Link

[Solent Ribman]

Had to replace our VHF and bought an Horizon GX1500E. Fitted OK, but now want to link the DSC facility to existing Navman Trackfish 6600 GPS. Can anyone help with wiring? Navman has what appears to be a DIN socket! Horizon, has Blue, Green, Grey and Brown wires [brown apparently not needed - so says manual].
Navman wiring:
Pin 1 - Black, Ground: power negative NMEA ground
Pin 2 - Brown, not used
Pin 3 - White, NMEA out
Pin 4 - Blue, NavBus - [negative]
Pin 5 - red, Positive power in [10 - 35V DC]
Pin 6 - Orange, NavBus + [positive]
Pin 7 - Yellow, Auto Power in
Pin 8 - Green, External beeper.

NavBus is apparently proprietary system to Navman!
Horizon wiring:
Blue -NMEA Input + [Connect to NMEA (+) output of GPS
Green - NMEA Input - [Connect to NMEA (-) output of GPS
Gray - NMEA output + [Connect to NMEA (+) input of GPS

Which of these three goes to which pin on the DIN Plug?
How is the DIN plug pins numbered - orientation of plug obviously critical?

All assistance on this one appreciated.

[Poly]

Originally Posted by Solent Ribman

Had to replace our VHF and bought an Horizon GX1500E. Fitted OK, but now want to link the DSC facility to existing Navman Trackfish 6600 GPS. Can anyone help with wiring? Navman has what appears to be a DIN socket! Horizon, has Blue, Green, Grey and Brown wires [brown apparently not needed - so says manual].
Navman wiring:
Pin 1 - Black, Ground: power negative NMEA ground
Pin 2 - Brown, not used
Pin 3 - White, NMEA out
Pin 4 - Blue, NavBus - [negative]
Pin 5 - red, Positive power in [10 - 35V DC]
Pin 6 - Orange, NavBus + [positive]
Pin 7 - Yellow, Auto Power in
Pin 8 - Green, External beeper.

NavBus is apparently proprietary system to Navman!
Horizon wiring:
Blue -NMEA Input + [Connect to NMEA (+) output of GPS
Green - NMEA Input - [Connect to NMEA (-) output of GPS
Gray - NMEA output + [Connect to NMEA (+) input of GPS

Which of these three goes to which pin on the DIN Plug?
How is the DIN plug pins numbered - orientation of plug obviously critical?

All assistance on this one appreciated.

Does the current DIN connection (providing power to the GPS) already have the 8 coloured wires connected? If so you want to join the BLUE wire from the radio to the white wire on the GPS. Connect the GREEN wire on the radio, to the Black wire on the GPS.

Leave the gray wire on the radio unconnected - your GPS appears to only output NMEA not accept incoming data (which is quite common except for newer chartplotters).

[Solent Ribman]

Thanks Polwart. I just need to establish now whether the DIN plug is wired in accordance with normal industry protocol. I'll let you know how I get on, but probably won't be until next weekend.

[Solent Ribman]

Hi Polwart
I tried your suggestion [I think -read on] and didn't get any positive response. Now, I couldn't access the wires from the GPS to check the colours. Probably not a good assumption, I thought since the old VHF was the same brand as the GPS, its built in lead would have the same colours attached to the appropriate pin of the DIN plug. Clearly something didn't work! Now, I have to say I didn't change [or check] any of the settings on the GPS, so if you have some pointers for further investigation, glad to receive.
Ta
Martin

[Poly]

I'm not sure I follow what you did/didn't do. But if you think it should be wired correctly then before you start rewiring anything check that the VHF and GPS are both set up correctly to talk and listen. Depending how user friendly the GPS is you may have to set the baud rate etc - or just tell it to transmit in NMEA0183. I think the default is for the Standard Horizon to be "listening" for this.

[Solent Ribman]

Originally Posted by Polwart

I'm not sure I follow what you did/didn't do. But if you think it should be wired correctly then before you start rewiring anything check that the VHF and GPS are both set up correctly to talk and listen. Depending how user friendly the GPS is you may have to set the baud rate etc - or just tell it to transmit in NMEA0183. I think the default is for the Standard Horizon to be "listening" for this.

Polwart
Just to let you know I am still here and not ignoring your assistance, but I don't get home every weekend. Hope to look at this weekend.