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Old 11-04-2020, 04:44   #1
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Anyone have an Onan Gen w. J1939 (NIM module)?

I installed an Onan network interface module in my 21.5Kw generator. After the install, the generator starts fine from the remote panel inside the boat -- just as it did before.

But I'm not getting any data coming through on my Maretron J2K100 J1939-NMEA2000 gateway.

There are 2 LED lights on the network module, and they are both solid green when the generator is running. When I unplug the Maretron J2K100, only the top LED remains solid green.

The manual only mentions blinking lights, not lights that are solid green. Then again, the manual for the network interface module is VERY thin and doesn't feel well maintained.

Does anyone have one of these network interface modules? Are the lights blinking or solid?

I've double, triple, quadruple check the wiring from the NIM to Maretron... everything else is straight from Cummins/Onan.
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