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) | 
