| Компонент | Описание | Производитель | |
| PX-4220-DBP-FA | Hybrid TTL Clock Oscillator |
Vectron International, Inc |
|
| PX-4220-DBP-FB | Hybrid TTL Clock Oscillator |
Vectron International, Inc |
|
| PX-4220-DBP-FF | Hybrid TTL Clock Oscillator |
Vectron International, Inc |
|
| PX-4220-DBP-FK | Hybrid TTL Clock Oscillator |
Vectron International, Inc |
|
| PX-4220-DBP-FS | Hybrid TTL Clock Oscillator |
Vectron International, Inc |