Twiddler connection for the Macintosh
_____________________________________


This scheme represents the connections to make between

+ macintosh serial port (mini DIN-8)
     male connector
      6 7 8
     3 4   5
       1 2

     1 HSko 
     2 HSKi
     3 TxD-
     4 GND      White
     5 RxD-     Yellow
     6 TxD+
     7 GPi
     8 RxD+     Green
     

+ twiddler (Berg 5 pin)
     12345
     OYBR.     O:Orange, Y:Yellow, B:Brown, R:Red, . not connected


+ 4.5V battery, or ADB connector (use a prolongator ADB: male---+----female)
                                                                |
                                                             twiddler



  TWIDDLER         BATTERY
  1 (orange)-------    0V -------+-------------------- Green 8
                                /
  2 (yellow)------- +4.5V      /---------------------- White 4
                              /
  3 (brown) -----------------+
  
  4 (red)   ------------------------------------------ Yellow 5
  
  5



Instead of a battery we'd better use the 5V given in the ADB port,
the scheme given by Apple is the following:

ADB, female connector:

     4 3
    2   1
      -

    1 ADB (data)
    2 PWRON (power on)
    3 +5V
    4 GND (ground)

a priori we can use 3 and 4 instead of a battery. (I didn't test this)




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