I think the spec on the power is similar to USB. It should be limited to about 500 milli amps. I guess I could check the power tee portion for a rating.
The other question I would ask you Bill is, did you check a section of cable that is supposed to be used for backbone? Josh On Sun, Apr 26, 2020, 21:30 Bill Coleman via CnC-List <cnc-list@cnc-list.com> wrote: > That is an interesting point, I forgot about the power carrying > capabilities of two of the wires. Got me curious so I pulled out a N2K > connector to one of my components, the CPU. And it's not exactly what I > thought I would find. The actual wires appear to be about the same gauge, > not really sure but pretty small. But the black and red power carrying > cables have very little insulation, and the wire appears to be twisted > quite a bit, but the data carrying cables, the blue and white, have heavier > insulation, but the wire strands appear to be laid straight. Kind of the > opposite of what I would have thought of. But there are only 4 wires, plus > the braid around it all, which is not used on that connection. . I guess > the braid covering the whole thing is pulled out and becomes the fifth > wire, the drain as they call it. I will take some calipers down to the > boat and compare the wire gauge of the 0183 wires to this N2K, maybe it > will work. > > > > Bill Coleman > > Erie, PA > > > > > > > > > > *From:* CnC-List [mailto:cnc-list-boun...@cnc-list.com] *On Behalf Of *Josh > Muckley via CnC-List > *Sent:* Sunday, April 26, 2020 6:26 PM > *To:* C&C List > *Cc:* Josh Muckley > *Subject:* Re: Stus-List NMEA 0183 vs. 2000 Wiring Compatibility > > > > Yes there is a spec for N2K wiring and it differs from 0184, however for > relatively short runs (or for that matter even the longer ones) you'll > probably be OK. The biggest thing you'll want to verify is that the gauge > of the conductors is matched for the power wires. In N2K you'll find a red > and black wire that are typically larger than the signal wires. Those red > and black wires supply power to all of the downstream devices. One device > is probably not a big concern... Multiple devices - might make a > difference. So if it is a branch you'll likely not have a problem, if it > is a section of the backbone it might cause trouble. > > > > Other than that, it is certainly worth a try. > > > > Josh Muckley > > S/V Sea Hawk > > 1989 C&C 37+ > > Solomons, MD > > > > > > > > On Sun, Apr 26, 2020, 17:57 Bill Coleman via CnC-List < > cnc-list@cnc-list.com> wrote: > > I am replacing some 0183 wiring for NMEA 2000, and I bought some 2000 end > connectors (Maretron FA-NF-ST Mini Field Attachable Connector (Female) > FA-NM-ST) that you can screw the terminals into. Some of this 0183 wiring > was probably installed before the boat was completed, and It looks very > difficult to re-wire. Does anyone know if I can just use the 0183 wiring to > now become 2000 compatible? In other words, is there anything lacking in > the older wiring, like shielding, twisting, etc, that would make this not > work? > > Bill Coleman > Erie PA > > > > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each > and every one is greatly appreciated. If you want to support the list - > use PayPal to send contribution -- https://www.paypal.me/stumurray > > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each > and every one is greatly appreciated. If you want to support the list - > use PayPal to send contribution -- https://www.paypal.me/stumurray > >
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