Alarm Receiving Centre. A Secure location where signals are monitored 24hours a day.
BNC
One of the most popular of the coaxial connectors, the BNC was developed in the late 1940s. The name BNC sands for Bayonet Neill Concelman. Bayonet describes the coupling mechanism, while Neill and Concelman were the inventors of the N and C connectors. The BNC is essentially a miniature version of the C connector which is a bayonet version of the N connector. BNC connectors are available in both 50 and 75 ohm versions, both versions will mate together. The 50 ohm designs operate up to a frequency of 4GHz. BNC connectors are used in many applications, some of which are flexible networks, instrumentation and computer peripheral interconnections.
BS4737
Standards for design, installation and maintenance of intruder alarm systems
BS5750
Internationally recognised quality standard.
BS5839
Standards for design, installation and maintenance of fire alarm systems.
BS5979
Standards for construction and working of an ARC.
BS6799
Standards for wireless intruder alarm systems.
BSIA
British Security Industry Association.
BT
British Telecom
Corrective Maintenance
A call out, or engineer attendance to correct a fault.
Door Contact
A normally magnetic switch which detects if a door is closed or open.
Dual Tech
Dual Technology - where a single device operates on two different typs of technology. Must common use is where a PIR and a Microwave detector is combined into one movement detector.
Dummy Sounder
An external sounder that provides a visual deterrent, but doesn't make any noise.
Duress Code
A number chosen by the user that, if used to unset the alarm will act as normal but will also send a personal attack (code 2) signal to the ARC.
EAS
Electronic Article protection System.
Engineer Reset
Where a system can not be reset by the user without assistance from the maintaining company.
EOL
End Of Line
FSL
Fully Supervised loop.
Keyholder
A nominated person who is deemed able to operate the security system, has keys as required and lives within 20 minutes travelling time.
LIM
Line Interface module - refers to a Scantronic 9500 processor.
Master Code
The operators code for the system that has additional privileges such as being able to delete other user codes.
NACOSS
National Approval Council for Security Systems.
NVM
Non Volatile Memory.
PIR
Passive Infra Red movment detector.
Preventative Maintenance
An engineers attendance to inspect a system.
PROM
Programmable Read Only Memory.
PSU
Power Supply Unit.
Remote Reset
The facility to apply an engineer reset to system without physical attendance.
REN
Ringer Equivalence Number - a telephone line can normally supply upto 4 REN, where a standard telephone/answering machine etc would equal 1 REN.
RIO
Remote Input Ouput - refers to Galaxy processor.
SAB
Self Activating Bell.
SAS
Self Activating Sounder/Siren.
SIA
Security Industry Asscoiation - describes a signalling protocol.
STU
Subscriber Terminal Unit - the Redcare device required at the clients premises.
TVX
Trade name that refers to a visually verified intruder alarm system.
URN
Unique Reference Number as issued for each intruder alarm system by the Police.
Verification
The means of verifying that an intrusion has taken place. Can be via audio, visual or sequential means.
Viper
Trade name for a vibration detector.
ZEM
Zone Expansion Module - refers to a Tunstall/Menvier processor.
