Product guide

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Glossary
Dial-up Telephone Line - A normal telephone line which is used by a computer to communicate with controllers at remote sites via
modems, and vice versa
Door - The physical means of controlling access through an access point. Includes barriers, gates, turnstiles
Door Contact - Door monitoring switch which changes state when a door is opened or closed
Door Controller - A controller which is directly connected to the Segment Controller (see Segment Controller) and the Reader.
Also contains connections for the Door Release (see Door Release), Egress Button (see Egress Button) or Break Glass Unit (see
Break Glass Unit)
Door Forced Alarm - An alarm that is activated when a door is opened without a valid access request or the door exit control
being used
Door Release - An electro-mechanical device used to lock or unlock a door
Door Monitoring Switch - Switch which changes state when a door is opened or closed
Door Open Alarm - An alarm that is activated when a door remains open longer than a specified time
Duress Alarm - An alarm that is covertly activated by entering a special PIN at an access point, the cardholder being granted
access as normal so as not to arouse suspicion
Egress Button or Switch - A means of unlocking a controlled door from the secure side without a valid access request. Also
referred to as door exit control
Entro - PC based Access Control software. Used for programming, editing and reporting of data and events
Event - Any system activity which takes place following a specified occurrence
Fail-Safe - A door lock that unlocks the door if power fails and requires continuous application of power to stay locked
Fail-Secure - A door lock that locks the door if power fails and requires the application of power to unlock the door
Hands-Free - Reading technology which enables a cardholder to gain access without having to hold the card in the hand. Typically
giving ranges of up to 1 metre with HF500-Entro Readers or up to 2 metres with a Loop aerial
Hardware System - A Local Hardware System is one or more controllers connected to one serial port on any computer on the host
computer’s network. A Remote Site Hardware System is one or more controllers connected to a dial-up modem
Heavy Duty Reader - A Proximity Reader manufactured from stainless steel and polycarbonate. Ideal for use in locations
vulnerable to physical attack
Holiday - The access control software can be configured to provide different time frames on days designated as holidays
I/O - Input/output
IN Reader - A reader that changes the status of a card in the cardholder record from OUT to IN for the purposes of the anti-
passback and roll call functions
Indicator Light - A red or green or amber indicator lamp that shows the system’s response to an access request
Input - An input is a signal which is monitored by a controller. Dedicated inputs are door exit control (egress), door contacts,
controller/PSU tamper and PSU monitor
Interface - A device or protocol which enables communication between one device and another
Invalid Card - A card which is not allowed access
ISO Laminated Card - A passive 'credit card' sized card suitable for use with Photo ID applications (see Thermal Dye-Sublimation)
Jumper - A small shorting plug on a printed circuit board which can be moved to set an option
LAN - Local Area Network. Used in PC networks and can be utilised for Access Control communications (see Network)
LED (light emitting diode) - Small indicator light
Local Hardware System - See Hardware System
Loop Antenna - A piece of wire driven from a controller which is used to interrogate Active cards and tags
Maglock - An electro-mechanical device which uses magnets on the door and the frame to lock or unlock a door
Magnetic Stripe Card - A card that contains a band of ferrous material that can be magnetically encoded
Menu - A displayed list of commands or features available to the operator
Mifare® - A registered trade name for Smart Card technology (see Smart Cards)
Modem - A device which transmits and receives binary data across a telephone line. Used to communicate with controllers at
remote sites
Monitor - Either, a part of the access control software which displays transactions. Or, the monitoring of certain parts of
the access control system (door, input, etc) to check for certain conditions and generate alarms if necessary
Mullion Mount Reader - A Proximity Reader designed to suit door architraves
Network - Sometimes called a “local area network” or LAN. Connects computers together so that they can share files, printers and
other peripherals. Any computer on the host computer’s network can be connected to a Hardware System
Off Line - Communications between the computer and the access control system are halted
On Line - Communications between the computer and the access control system are open
Operator - Someone who has authority to log in to all or parts of the access control software
OUT Reader - A reader that changes the status of a card in the cardholder record from IN to OUT for the purposes of the
anti-passback and roll call functions
Output - An output is a signal provided by a controller
PABX - Private Automatic Branch Exchange. Used by company's to run their internal telephone systems
Panel Mount Reader - A Proximity Reader designed to fit most 3rd party panels, such as Door Entry Phones
Passive Technology - A cost effective technology where the user has to actively present a card or tag to a Reader, Read ranges
are typically around 10cm with Proximity Readers
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