User guide

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14
systems) it is very important to ensure that the cable screen is
connected to pin 1 and that pin 1 is not connected to mains earth.
This simple precaution solves most DMX512 problems.
It is also a good idea to isolate the DMX512 input circuitry.
Application
The following circuit shows the AL4002 application drawing. This is
also the circuit diagram for the evaluation PCB.