NMEA N2K - What's Wrong With It ?

[DotDun]

Yes, I'm amazed that NMEA has gotten away with this behavior for this long. All I can say is that the proponents of N2k have mildly succeeded in protecting their proprietary design for their own financial gain. It's obvious to me looking at the design that was their number one goal from the onset.

I've witnessed and fought such behavior for many years in other disciplines (telephony & Internet), and the only ray of hope I hold onto is in the end the market will move to the system that holds the best value for the consumer. Money talks!

[DotDun]

Is NMEA finally waking up?

http://www.panbo.com/NMEA_introduces_OneNet.pdf

and the ensuing discussion...

Panbo: The Marine Electronics Weblog: OneNet, NMEA finally creates a marine Ethernet standard!

I find it very interesting that NMEA would still bash Ethernet and favor N2k for it's ability to prioritize packets. The never mention IP/TCP/UDP in the press release, but do mention UPnP & SSDP which are based on IP.

[hellosailor]

I must be confused. Marine ethernet? Ethernet doesn't care where it is, "marine ethernet" is blowing smoke.

A new standard? Um, no, ethernet is an existing standard. Putting it on a boat doesn'tchange that. More smoke, bring in the mirrors.

I think the bottom line here is that NMEA has realized NMEA2000 is a flop, and what they are ashamed to say is that they're introducing an ETHERNET ADAPTER to convert NMEA2000 into a standard ethernet format. That probably is what used to be called a "brdige", a box which takes two disparate media and connects them. Along with a protocol converter, to convert NMEA2000 into standard ethernet frames (data).

Although for small craft, just putting Wifi into the boxes like Raymawhosis is doing now ought to do the job well enough.

Marine grade ethernet? Hell no, the telephone companies were using gold-plated connecting pins for RJ45 cables decades ago. Maybe I missed something, but all I see here is smoke and mirrors and NMEA trying to use jargon to keep out the civilians.

[DotDun]

Originally Posted by hellosailor

I must be confused. Marine ethernet? Ethernet doesn't care where it is, "marine ethernet" is blowing smoke.

A new standard? Um, no, ethernet is an existing standard. Putting it on a boat doesn'tchange that. More smoke, bring in the mirrors.

I think the bottom line here is that NMEA has realized NMEA2000 is a flop, and what they are ashamed to say is that they're introducing an ETHERNET ADAPTER to convert NMEA2000 into a standard ethernet format. That probably is what used to be called a "brdige", a box which takes two disparate media and connects them. Along with a protocol converter, to convert NMEA2000 into standard ethernet frames (data).

Although for small craft, just putting Wifi into the boxes like Raymawhosis is doing now ought to do the job well enough.

Marine grade ethernet? Hell no, the telephone companies were using gold-plated connecting pins for RJ45 cables decades ago. Maybe I missed something, but all I see here is smoke and mirrors and NMEA trying to use jargon to keep out the civilians.

The price of N2k connectors are below $20, they need to design marine grade ethernet with $35 connectors to keep the profit margins up!