!!SIO-Connector
{{{
     __________________________ 
    /                          \ 
   /   2   4   6   8   10  12   \ 
  /                              \
 /   1   3   5   7   9   11  13   \
/__________________________________\
}}}
||lower row||upper row
|1 Clock Input|2 Clock Output 
|3 Data Input|4 Ground 
|5 Data Output |6 Ground 
|7 ~Command|8 Motor control
|9 ~Proceed |10 +5V DC/Ready
|11 Audio Input |12 +12V DC
|13 ~Interrupt

Notes:
* ~=active low
* Pin 10: +5V DC not on 1200XL
* Pin 12: +12V DC on 400/800 only. 1400XL/1450XLD?

!!Joystick-Connector
{{{
_________________________
\                       /
 \  1   2   3   4   5  /
  \                   /  
   \  6   7   8   9  /
    \_______________/ 
}}}
||lower row||upper row
|1 Up|6 Trigger 
|2 Down|7 +5V DC 
|3 Left|8 Ground 
|4 Right|9 Pot A
|5 Pot B

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

!!!Monitor Connector

5 PIN DIN 180° (DIN41524) FEMALE at the computer.

||Pin||Description
|1| Composite Luminance (Composite Video on PAL 600XL)
|2| Ground
|3| Audio Output
|4| Composite Video
|5| Composite Chroma (not on 800XL (except "800XLF"), 1200XL; Ground on PAL 600XL)