Commodore 1351 Mouse Pin-Out
9 pin D-sub female at the cable.
| Joystick Mode | Proportional Mode | |
| 1 | Up | Right Button |
| 2 | Down | Unused |
| 3 | Left | Unused |
| 4 | Right | Unused |
| 5 | Unused | Y-Position |
| 6 | Left Button | Left Button |
| 7 | +5V | +5V |
| 8 | Gnd | Gnd |
| 9 | Right Button | X-Position |
Source: Commodore 1351 Mouse User's Guide
[Back]