Man Over Board Deck Button and N2K

Tom Henderson · 2019-02-17T18:02:20Z

The short form of the question is "is anyone aware of a way of using an external push button to trigger an MoB event on an N2K network?". The context is as follows:I'm (sadly) having to replace my lovely Leica MX412 DGPS, as it's display is dying (one row at a time), and one of the 0183 outputs now has what looks like a stuck bit. I fear it's not long for the world. The boat is a 1989 Swan 43, based on the UK's south coast. The rest of my electronics is a very complete B&G H2000 Hercules system, with Pilot, KVH Gyrotrak/Halcyon Gyro, Vertical MHU, 2020s, Analogues, Remote Vision, etc, a Furuno 1722 radar/plotter at the nav station, a DY iAIS, a PC running Expedition talking to the B&G using the proprietary B&G HLink protocol and iPads running iSailor & RConsole to the PC. The radar gets AD10 heading from the B&G gyro, Expedition can provide alternating and context switched output channels to the B&G displays - for example pre start you can have time to gun, post start alternating mark bearing and distance, upwind target angle, downwind target boat speed etc. The iAIS will become a Vesper XB8000 or its SOTDMA successor this spring. It all works well, and does not require the PC to be working to do all the basics. This includes the MoB function: at present the MX412 looks after it all, with a remote push button by the wheel. Long story, but due to space restrictions in the nav station, and a longer term agenda to replace the radar once the doppler products settle down (B&G doing full ARPA like Furuno, for example), I'm going to replace the GPS with a B&G ZS100, and a Vulcan 5 as a display head, together with an H5000 Fastnet interface to pass the H2000 data to the N2K bus. I'll use the Vesper's GPS as a secondary source, as the 10Hz update of the ZS100 appeals. The Vesper will also bridge the 0183 and n2k networks, feeding GPS data back to the H2000. None of the current B&G plotters has an input for an MoB button. I might get MoB events on the N2K from the AIS beacons in our lifejackets, but they're not worn all the time and I want to retain a button on deck.So, in my moving to an N2K world, how do I generate MoB events? I can (and will) plumb the deck button into Expedition, but I'd rather not be dependent on having a PC working, and running the right software, to track an MoB. It is usually, but inevitably won't be at the point when I need it most.Re-reading this it sounds as though I'm a B&G loyalist - I like the sailing features, but the boat had the H2000 when I bought it so I've a significant existing investment, but the GPS & Vulcan are cost effective. The future replacement Radar could be from anyone, and I'd mirror the display to iPads on deck, but the current Furuno products don't happen to fit the bulkhead spaces I've got available terribly well. Thanks for the help,Tom

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Ben Stein

(@ben-stein)

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October 15, 2019 11:06 am

@fogmachine

If you can wait until this weekend I'll fire one up with a Simrad NSS EVO3 and see what it does with it.

Ben

Publisher, Panbo.com

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fogmachine

(@fogmachine)

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November 1, 2019 9:13 am

@ben-stein

Any luck hooking it up?

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