Dedicated IIgs NULL modem cable

     The usual IIgs NULL modem cable consists of a High-Speed IIgs modem cable connected to a NULL modem adapter which connects to a modem cable coming from the PC. If you want to 'roll you own' single piece IIgs --> PC cable for NULL modem connections, here is the pin-out info:

 IIgs            PC  Female Dsub
Mini-Din 8   Dsub-25F  or  Dsub-9F   Dsub Signal

  3           3             2         RXD
  5           2             3         TXD
  4,8         7             5         GND
  2           4             7         RTS
  1           5,6,8         1,6,8     CTS, DSR, DCD
  7           20            4         DTR


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