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TOPIC: What power to a NEMA device?

What power to a NEMA device? 18 Jun 2009 22:10 #1

  • The_Sea_Word
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Does a NEMA slave device get a +12v feed on the red wire or a TLL level power feed?

I have a compass heading sensor that has a "NEMA power" terminal- before I try to download and cross-ref the manual against the ones for my chartplotters I figured I'd try just asking. It's all Raytheon gear on NEMA 0183.

-Will

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What power to a NEMA device? 19 Jun 2009 05:09 #2

  • bhawes
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I'm talking a wee bit out of church here, but I believe that an NMEA system can only have 1 power source. The individual components that attach to it, depending on the device, need their own 12 v. source. I'd take the time and look up the details in the manuals, or source a web site for the information. This stuff is great, but everything has to speak the same language, or they won't speak at all.

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Bob Hawes.
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1998 Trophy 2052 WA
4.3 Vortec, A1 G2

What power to a NEMA device? 19 Jun 2009 13:30 #3

  • SwampNut
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I've never seen power over NMEA 0183, only data out, data in, and ground. NMEA 2000 is the one that carries power.

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