| Abbreviation | Definition |
|---|---|
| POE | Power Over Internet |
| POE | PPP (Point-to-Point Protocol) Over Ethernet |
| POF | Point Of Failure |
| POI | Path Overhead Indicator |
| POI | Point Of Interconection |
| POI | Point Of Interconnect |
| PON | Passive Optical Networking |
| PON | Public Optical Network |
| POP | Pass On Packet |
| POP | Point Of Presence |
| POP | Post Office Protocol |
| POP3S | Post Office Protocol 3 Secure |
| PORE | Partido Obrero Revolucionario de España |
| POS | Packet Over SONET |
| POS | Packet Over SONET (Synchronous Optical NETwork) |
| POSI | Portable Operating System Interface |
| POSM | Procedure-Oriented Service Model |
| POST | Power On Self Test |
| POST | Power-On Self Test |
| POST | Printer Online Standard Test |