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[TG] SeatalkNG and Seatalk power issues.
05-04-20, 02:14 AM
Post: #2
Tom - Raymarine - Moderator Offline
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RE: SeatalkNG and Seatalk power issues.
Hello Pan76,

The ST1-STNG convertor can pass power through in either direction. This is by design in order to simplify installations, but is causing the problem you're seeing. This shouldn't be happening, you should only have a single point of power for your combined network. Multiple points of power can cause a range of problems including:
  • incorrect fusing/circuit protection
  • electrical noise, as current oscillates between taking one path or another, especially if both supplies aren't straight from the same source
  • damaged SeatalkNG/NMEA2000 chips in STNG devices

You need to choose one source of power or the other, and disconnect the red +12V wire on the other one.

Regards,
Tom
Raymarine since 1999.
Interests: Diagnosis of problems in sonar/fishfinders, NMEA2000, ethernet comms, autopilots, thermal cameras
Location: Sydney, Australia.

Please don't PM me asking for direct support, please ask a public question instead so that others can see the question and answer. Forum posts will always be answered before PM requests.
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RE: SeatalkNG and Seatalk power issues. - Tom - Raymarine - Moderator - 05-04-20 02:14 AM

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