Ask For NMEA2000 with 24 Vdc

[Jeffry]

Dear Furuno Team,
I want to ask for the nmea 2000 connection. I will install 3 tzt16f v3. with the following sensors,
1. PG700
2. GP330B
by using actisense A2K-SBN2.
Voltage in boat 24V. can we use 24 on nmea system. Thank you

Regards
Jeffry

 

[FishTech]

No you cannot. NMEA 2000 is 9-16VDC only.
Several companies make nice, affordable, 24VDC - 12VDC isolated power conditioners/converters. Ensure that you use an isolated model or you will have a ground loop. Connect the NMEA 2000 Net-C (DC-) and shield wires together to the isolated 12VDC -.

 

[FishTech]

The Victron Orion-Tr 24/12-9 is a model I have seen used by some of our dealers.

 

[Jeffry]

Thanks for the answer,

No you cannot. NMEA 2000 is 9-16VDC only.
Several companies make nice, affordable, 24VDC - 12VDC isolated power conditioners/converters. Ensure that you use an isolated model or you will have a ground loop. Connect the NMEA 2000 Net-C (DC-) and shield wires together to the isolated 12VDC -.

Luckily I asked first, because I saw in the guide that the GP330B can use 24V, while the PG700 only has 12V, thank you for the explanation

 

[jp498]

I was just on a boat with 24v going into the NMEA2000 network. It was just some simrad AP parts with no long runs or heavy LENs. Simrad had nothing in their instructions about what voltages are OK. The customer was lucky it didn't fry anything. I put a converter in to bring it down to 12v because I wanted to add a Furuno if-nmea2k2 which 12v and a Furuno sat compass which specified 9-16v. NMEA2000 is supposed to be something common to everything and that means running on 12v-ish.

 

[Jeffry]

I was just on a boat with 24v going into the NMEA2000 network. It was just some simrad AP parts with no long runs or heavy LENs. Simrad had nothing in their instructions about what voltages are OK. The customer was lucky it didn't fry anything. I put a converter in to bring it down to 12v because I wanted to add a Furuno if-nmea2k2 which 12v and a Furuno sat compass which specified 9-16v. NMEA2000 is supposed to be something common to everything and that means running on 12v-ish.

Thanks jp498

 

[Sparky Wire]

GP330B and other have abilities that it can be powered by 24v but that is standalone type installs and NOT NMEA.ORG approved at that point. For example the GP330B can put out 0183 when a diffrent (optional) cable is used. In this case a customer might want to power it from 24v and that is okay particularly with it not being on a 2000 bus. NMEA 2000 standards are very clear. The bus is 9-16vdc (normally at 12v). While items might have additional features and options to do more, the bus and associated transceivers should follow the NMEA.ORG standards.