The program requires the following adapter cable to be connected between your
parallel printer port (LPT1/LPT2/LPT3) and a commodore disk drive (1541/1581)

IBM LPT port Male (solder side):     CBM IEC serial port Male (solder side):
        Ŀ                              _ͻ
Strobe1  Ŀ                        ͼ         ͻ  _____
              14AutoFeed        Data5     1SrqIn  _____
(Data 0) 2Ŀ                                 6Reset
            15(Error)          Clock4     2ĿGround
         3        ____                  ͻ   3    ͼ 
              16Init                    ͼ
         4                                 Atn
              17SelectIn  Ŀ
         5                   C64signal   IBMsignal       LPT port + 2 
             18                                                      
         6  ĿGround     2 Ground  18..25 Ground                 
             19           3 Atn          1 Strobe      bit 0      
         7                   4 Clock       14 AutoFeed    bit 1      
                      5 Data        17 SelectIn    bit 3      
             25              6 Reset       16 Init        bit 2      
        13              
        

It is not necessary to wire all the ground pins.

The connection between the pins 2 and 15 on the LPT port side is necessary for
the auto detect routine. If you don't want to connect it, you can, but you must
force the program to work with the LPT port where the cable is connected.
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