P32A32 DI/DO LoopBack Test Wiring

1. Setting JP1 and JP2 to External Power

2. Connect the DI with DO
    ==> DI0 with DO0
        ........
        DI31 with DO31

3. Connect Power Supply (+) with DO External Power(+, pin 37)

   Connect Power Supply (-) with DI COM1A/COM2A (pin 18)
   Connect Power Supply (-) with DO External GND (-, pin 1, 20)
   
