SIO-Connector#

     __________________________ 
    /                          \ 
   /   2   4   6   8   10  12   \ 
  /                              \
 /   1   3   5   7   9   11  13   \
/__________________________________\
lower rowupper row
1 Clock Input2 Clock Output
3 Data Input4 Ground
5 Data Output 6 Ground
7 Command8 Motor control
9 Proceed 10 + 5V DC/Ready
11 Audio Input 12 +12V DC
13 Interrupt

Joystick-Connector#

_________________________
\                       /
 \  1   2   3   4   5  /
  \                   /  
   \  6   7   8   9  /
    \_______________/ 
lower rowupper row
1 Up6 Trigger
2 Down7 +5V DC
3 Left8 Ground
4 Right9 Pot A
5 Pot B

3 also Paddle Trigger A
4 also Paddle Trigger B
6 also Light Pen Input