Someone just asked a question about how you connect a three wire alternator into a car and interface it with ISIS. This is very simple and straight forward. The following diagram shows you how to do this.
Simply, terminal 2 gets jumpered to the battery stud. The battery stud gets connected to the positive terminal on the battery. It is important to size the gauge of wire connecting the alternator to the battery to the full rated current of the alternator.
Terminal 1 gets its reference voltage off of the ignition output on the POWERCELL. You just splice into output number 3 which connects to your ignition system. Between terminal 1 and the POWERCELL, you splice in an incandescent light bulb which acts as the charge indicator. This light will go out when the alternator is generating current correctly and will light if there are any issues.
You can download this app note here. There are many other similar notes in our Reference Library that will help you wire your car with the ISIS Intelligent Multiplex System.
If you are looking for information on wiring a 1-wire alternator, there is a good video on YouTube that will show you how to do this. Check it out here.
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