Burndy NAC 52
| A | channel 1 (gauche) | |
| B | channel 2 (droit) | |
| N | 0v (masse) | |
| H | 24v circuit gain channel 1 (gauche) | |
| L | 24v circuit gain channel 2 (droite) | |
| T | 24v circuit tampon d’entrée channel 1 (gauche) | |
| G | 24v circuit tampon d’entrée channel 2 (droite) | |
| K | 24v carte phono (NA 522 / NA 523) | |
| U | 24v carte phono (NA 522 / NA 523) | |
| J | 12;75v | |
| D | 24v | |
| E | 24v | |
| F | 24v | |
| R | 24v | |
| S | 24v | |
| V | 24v | |
| C | non connectée | |
| M | non connectée | |
| P | non connectée |
Burndy NAC 252
Burndy XPS
| A | +10v | |
| M | -10v | |
| N | 0v | |
| C | +15v | |
| P | 0v | |
| D | +15v | |
| R | 0v | |
| L | +22v | |
| K | -22v | |
| U | 0v | |
| E | Terre | |