Product guide

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Glossary of Access Terms
Glossary
Access - To enter protected areas or premises
Access Control - A method of automatically controlling entry to and/or exit from protected areas or premises
Access Control Database - A store on the computer or controllers of all the records required to make the access control system
function as required
Access Control Software - A group of programs which are run, when required, on a computer (usually a PC) which perform specific
tasks associated with setting up and using the access control system
Access Control System - Equipment used to control automatically the passage of people and vehicles into and out of protected
areas and premises
Access Decision - The response by a controller to an access request (either access granted or access denied)
Access Denied -The access code does not allow a cardholder to gain entry to the protected area or premises
Access Granted - The card number and site code (and PIN if required) allow a cardholder to gain entry to the protected area or
premises
Access Group - A list of areas to which a cardholder is allowed access. Access may be restricted to certain times by the use of a
Time Schedule
Access Point - A Reader, usually at a point of entry or exit (door, gate, barrier, turnstile) where access is controlled (and monitored)
by an access control system. Points of entry or exit which are used for anti-passback or roll call require two Readers and therefore
two access points
Active Technology - Where an onboard long-life lithium battery enhances the output signal from a card or tag to the Reader
Address - A combination of numbers which uniquely identifies equipment on an access control system
Alarm - Warning of a possible breach of security of some kind
Alarm Actions - Instructions to be carried out when an alarm occurs
Alarm Bypass - Allows integration into a premises intruder protection system allowing arm/disarm control
Alarm Message -A message generated by the access control system when an alarm condition occurs. This message is received by
the computer and interpreted by the access control software
Anti-Passback - The limiting of a card or tag's use in one direction without first having been used in the opposite direction.
Requires IN and OUT Readers
Archive - A copy of the access control database kept for security against loss of data
Automatic Vehicle Identification (AVI) - Method of reading a vehicle tag fastened to the bottom of a vehicle using a loop antenna
buried in the roadway. Can also apply to identification of the driver’s card using a side loop or Reader
Backup - A second copy of a file, made as security against loss of data
Battery Backup - An alternative standby energy source that maintains system operation for a period of time in the event of a power
failure
Baud Rate - The number of bits per second in data transmission
BC Link - Bewator propriety Reader interface
Bewacom - A Door Entry Phone System that connects directly to a Company's PABX system
Bewatel - A hardwired Door Entry Phone System
Break Glass Unit - Allows emergency release of electronically locked doors
Buffer - A temporary store for data, usually in RAM
Card - An encoded card that can be read by a Reader. Also referred to as a token or tag
Card Number - One of the numbers programmed into the card. The card number is linked to the cardholder in the cardholder
record
Card Technology - The physical method by which numbers are stored within cards
Card Transaction - The act of reading data from a card and passing it to the access control system
Cardholder - A person to whom a card has been issued. (Also known as user)
Cardholder Record - One of a number of records in the access control database, each of which links a cardholder’s name to the
card number and an access group. (Can also contain other data such as PIN and personal details)
Cardreader - Equipment that reads data from a card (and PINpad if fitted) and transmits it to a controller. May include indicator
lights
Clamshell - A card that is manufactured by the welding of two outer protective casings
Clock & Data - Industry standard Reader interface
Codelock - Digital compact keypad, allowing entrance via the use of allocated PIN codes
Command - An order or instruction that the operator gives to the system, usually at the computer keyboard.
Also an instruction sent by a computer to a controller. The transmission of messages between devices
Common Code - A single PIN code that is allocated to all users
Computer - The device which runs the access control software and thereby maintains the access control database, sends
commands and data, receives and logs system messages, and generates reports
Configuration - The relationship of system components to each other
Controller - A device which polls Readers, makes access decisions and sends messages to the computer. May also handle
other inputs and outputs
Database - (See access control database)
DDA - Disability Discrimination Act. Government legislation forbidding discrimination of the disabled
Default - A standard condition or value determined by the system unless changed by operator intervention
Device - Any piece of equipment connected to a system
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