| Pin | Name | Description | 
| 1 | GAMESW1 | Switch input 1 (sometimes called paddle button 1). | 
| 2 | +5V | total current drain from this pin must not exceed 100mA. | 
| 3 | GND | System ground. | 
| 4 |  | Not Used for hand controller. | 
| 5 | PDL0 | hand controller input. Must be connected to a 150K ohm variable resistor connected to +5V. | 
| 6 | N.C. | Not connected. | 
| 7 | GAMESW0 | Switch input 0 (sometimes called paddle button 0). | 
| 8 | PDL1 | hand controller input; must be connected to a 150K ohm variable resistor connected to +5V. | 
| 9 |  | Not used with hand controller. |