Glossary
| ACPO | Association of Chief Police Officers |
| ARC | Alarm Receiving Centre |
| CCTV | Closed Circuit TeleVision |
| GPS | Global Positioning System |
| GPRS | General Packet Radio Service |
| GSM | Global System for Mobile communications |
| NSI | National Security Inspectorate |
| PIR | Passive Infra Red |
BT RedCARE |
A technology for monitoring alarms which constantly monitors a BT line and alerts the Alarm Receiving Centre if the transmission path is interrupted |
| RVRC | Remote Video Receiving Centre |
| SAB | Self Activating Bell |
| SIA | Security Industry Authority |
| SITO | Security Industry Training Organisation |
| STU | Subscriber Terminal Unit (the RedCARE signalling equipment installed at your premises) |
| URN | Unique Reference Number (identifies your premises to the police) |
