 (At the Computer)
 (At the Computer)
9 PIN D-SUB ??? at the Computer.
| Pin | Name | Dir | Description | 
|---|---|---|---|
| 1 | +5V |  | +5 VDC | 
| 2 | -5V |  | -5 VDC | 
| 3 | n/c | - | Not connected | 
| 4 | n/c | - | Not connected | 
| 5 | MTXD |  | Data | 
| 6 | n/c | - | Not connected | 
| 7 | n/c | - | Not connected | 
| 8 | n/c | - | Not connected | 
| 9 | GND |  | Ground |