36 pin D-SUB female connector at the
drive port, viewed from rear.
| Pin | Name | Dir | Description |
|---|---|---|---|
| 1 | n/c | - | Not connected |
| 3 | n/c | - | Not connected |
| 5 | n/c | - | Not connected |
| 7 | NINDEX | ? | |
| 9 | n/c | - | Not connected |
| 11 | NDSEL1 | ? | |
| 13 | n/c | - | Not connected |
| 15 | NMOTOR | ? | |
| 17 | NDSEL | ? | |
| 19 | NSTEP | OUT | Step head |
| 21 | NWDATA | OUT | Write Data |
| 23 | NWGATE | OUT | Write Gate |
| 25 | NTK00 | IN | Track 00 |
| 27 | NWRPT | IN | Write Protect |
| 29 | NRDDTA | IN | Read Data |
| 31 | NSIDE1 | ? | |
| 33 | NREADY | ? | |
| 35 | n/c | Not connected |
Notes
- Direction is Computer relative Diskdrive
- All even pins are GND, Ground