Connecting Fusion radio to Raymarine Seatalk/Seatalkng/NMEA network

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Ric

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I just got a Fusion "N" radio, which has an NMEA2000 connection.

My Raymarine network is a hodgepodge of Seatalk, NMEA(classic) and Seatalkng, but no NMEA2000. There is also an E85001 box.

What is best way to connect the Fusion into my existing network? I know I could buy a hideously expensive adaptor, but I am more than happy to slice and splice. So can I chop up the NMEA2000 cable and bodge it into (say) the E85001 box?

Thanks in advance
 
Get a field installable NMEA2000 plug, chop the end off a Seatalk NG cable and solder on the new plug. The most difficult bit is finding the colour code of the Raymarine cable so that you can be sure of connecting up the NMEA2000 plug correctly, but it is out there on the web - ask your favorite search engine.

P.S. I've just looked on eBay for field installable NMEA2000 plugs and they are scandalously expensive these days - the Raymarine adaptor may not be such bad value!
 
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Your SeatalkNG network is a NMEA2000 network, just with funny plugs. Even the core colours inside the cable are to NMEA2000 standard.

The E85001 is nothing to to with NMEA2000, ignore that.

You just need to connect a SeatalkNG spur cable to the Fusion stereo (whether by splicing cables or by using a Devicenet plug with screw terminals) and then plug it into a T-piece or "5-way connector" manifold.

Pete
 
By the time you've purchased a STNG cable and a N2K connector, it will likely work out cheaper to just buy a STNG to N2K cable. You may also need a standard N2K cable, as the adaptor cables aren't very long.
 
PaulRainbow said:
By the time you've purchased a STNG cable and a N2K connector, it will likely work out cheaper to just buy a STNG to N2K cable.
Click to expand...

Maybe, but it depends what you already have on hand. I have several leftover STng cables from various kits, so I would definitely just spend the eight quid for an M12 DeviceNet with screw-terminals inside :).

The OP might be in a similar position from the various upgrades he's presumably done to reach his current situation.

Pete
 
prv said:
Your SeatalkNG network is a NMEA2000 network, just with funny plugs. Even the core colours inside the cable are to NMEA2000 standard.

The E85001 is nothing to to with NMEA2000, ignore that.

You just need to connect a SeatalkNG spur cable to the Fusion stereo (whether by splicing cables or by using a Devicenet plug with screw terminals) and then plug it into a T-piece or "5-way connector" manifold.

Pete
Click to expand...

Thank you - that is very helpful. As you mention in a later post, yes, I do have lots of Seatalkng dangly bits so I will chop off the end of the Fusion-supplied N2k plug and do a splice on colours as you suggest.
 
Ric said:
Thank you - that is very helpful. As you mention in a later post, yes, I do have lots of Seatalkng dangly bits so I will chop off the end of the Fusion-supplied N2k plug and do a splice on colours as you suggest.
Click to expand...

If you splice the cables, as opposed to replacing the plug at one end, make sure you do a nice neat job, keeping lengths equal and maintaning the shielding as far as possible. NMEA2000 runs at a reasonably high data rate and a bodged job could increase the error count.
 
maby said:
If you splice the cables, as opposed to replacing the plug at one end, make sure you do a nice neat job, keeping lengths equal and maintaning the shielding as far as possible. NMEA2000 runs at a reasonably high data rate and a bodged job could increase the error count.
Click to expand...

Always good to do a neat job, but terminal strips are a valid connection method for N2k so I don't think the physical layout of junctions is all that critical. Signalling rate is 250Kbit/s which is 1/40th of the original slow ethernet from the 1980s - it might be fast compared to NMEA0183 serial links, but not in absolute terms.

Pete
 
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