Solder pin 1 of DS1233 into R11 closest to the MAX232 Solder pin 2 of DS1233 into R11 closest to the Relays Solder pin 3 of DS1233 into + terminal of C6 Solder reset switch S1 into place where D6 used to sit Noting the orientation of the IC put the AT90S2313 into IC1’s socket Converting Completed I/O controller to Multi Drop I/O Controller These are the instructions for converting an older K108 kit that has been built into a multidrop I/O controller Remove C6 (10uF), D6 (1N4148), R11 (10K) and reset switch S1 from the board. CONVERSION TO A MULTI DROP I/O CONTROLLER Converting a New I/O controller to Multi Drop I/O Controller These are the instructions for converting a new K108 kit that is being built into a multidrop I/O controller Do not solder C6 (10uF), D6 (1N4148), R11 (10K) and reset switch S1 into the board.
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May 2023
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