| Abbreviation | Definition |
|---|---|
| PAM5X5 | Two Five-level Pulse Amplitude Modulation signals simultaneously transmitted over the two wire pairs |
| PAMAS | Power Aware Multiple -Access with Signaling |
| PAMD | Parallel Access Multiple Distribution |
| PAN | Personal Area Network |
| PAN | Personal Area Networking |
| PAN | Private Area Network |
| PAND | Persian American Networking Development |
| PANDORA | Pan Asia Networking distance and open resource access |
| PANO | Polish American Networking Organization |
| PAP | Password Authentication Protocol |
| PAP | Private Access Provider |
| PAPI | Point Of Access To Providers Of Information |
| PAQ | Prioritized Accept Queue |
| PAR | PNNI Augmented Routing |
| PARS | Programmed Airline Reservation System |
| PASE | Portable Application Solutions Environment |
| PAT | Peripheral Attribute Table |
| PAT | Port Address Translation |
| PAV | Parallel Access Volumes |
| PB | Pipelined Burst |