DMK and older Nexus Server

mhoustonmd's Avatar


31 Mar, 2013 07:20 PM

Hi, In the process of installing the 11A GPS and integrating it with my existing Nexus Server. I'm confused about connecting the NMEA out, GPS out, and NMEA in from the 11A unit to the server where it seems each connection needs two wires (a primary and a return)

I've attached the manual from the Nexus Server-where the wiring connections are displayed on page 10-11

Any help would be appreciated.


  1. Support Staff 1 Posted by kevin.dolan on 21 May, 2013 05:19 PM

    kevin.dolan's Avatar

    Pins 11 and 12 seem to be the best bet. I would connect DMK's black and white ground wires to the "return" and DMK's Green wire to the NMEA Out. If that doesn't work move the ground wires to the power ground on the server.

  2. 2 Posted by mhoustonmd on 01 Jul, 2013 04:57 PM

    mhoustonmd's Avatar

    HI Kevin, I have a DMK with GPS. If you recall the first one I had needed
    to be returned. I've run into another problem. Was able to get the second
    box wired and working with little difficulty about 2 months ago. Last week
    it stopped working altogether--doesn't light up at all. I've rechecked all
    the connections and they are all good.

    Any thoughts?

    Michael Houston

  3. Support Staff 3 Posted by kevin.dolan on 01 Jul, 2013 05:00 PM

    kevin.dolan's Avatar

    I'm not sure what happened but we will happily replace the board. I'll
    send you an email with the tracking number once I get it shipped.

    Kevin Dolan
    DMK Yacht Instruments
    Sales and Customer Support
    Cell: 206-450-5037

  4. 4 Posted by mhoustonmd on 01 Jul, 2013 05:59 PM

    mhoustonmd's Avatar

    I have it wired to my other electronics (a silva nexus system) which is protected by a 1 Amp fuse in addition to a circuit breaker—should the DMK box be separately protected with its own fuse and if so what amperage?




    Michael Houston

  5. Support Staff 5 Posted by kevin.dolan on 01 Jul, 2013 06:11 PM

    kevin.dolan's Avatar

    I amp fuse should have been fine. When the box does not light up like that
    it means the voltage regulator has failed. This doesn't happen often but
    it happens enough we want to figure out why. The most important thing to
    do is to make sure the unused wires to not touch each other and that the
    black and white are both used at grounds. I one amp fuse should protect it
    from other shocks and the box is pretty robust against spikes.

    Kevin Dolan
    DMK Yacht Instruments
    Sales and Customer Support
    Cell: 206-450-5037

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