| Acronym | Meaning |
| CHAP | Challenge Handshake Authentication Protocol |
| XDSL | X Digital Subscriber Line |
| RAMDAC | Random Access Memory Digital-to-Analog Converter |
| PCI | Peripheral Component Interface |
| L2TP | Layer Two Tunneling Protocol |
| PCB | Printed Circuit Board |
| AN | Active Network |
| RTSP | Realtime Streaming Protocol |
| PIC | Programmable Interrupt Controller |
| PAL | Programmable Array Logic |