The pin-out for the Null-modem cable supplied by Prism Sound for use upgrading the software of the ADA-8 and other equipment is as follows.
| DB-9 Socket | DB-9 Socket | |
| 1 and 6 | To | 4 |
| 3 | To | 2 |
| 2 | To | 3 |
| 4 | To | 1 and 6 |
| 5 | To | 5 |
| 7 | To | 8 |
| 8 | To | 7 |
However, if you are building a cable yourself, you only need to connect to the following:
| DB-9 Socket | DB-9 Socket | |
| 3 | To | 2 |
| 2 | To | 3 |
| 5 | To | 5 |
