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© 1996 Radionics, Inc.
Glossary
Anti-Tamper
A means of detecting unauthorized disconnection of cables or removal of
covers from security equipment.
Block Add
If a large number of keyholders are to be entered into the database, it may
be more convenient to enter all the names, access groups, etc. first, then
to assign the keys at a later date. The Personnel application includes a
special ‘Block Add’ utility for this purpose.
Reader Channel
A term used to describe the connections on a door controller for a single
door - i.e. reader, locks and request to exit and door contact inputs.
Door
Although this term is usually used to refer to a physical door at which a
reader is installed, it is useful to remember that sometimes each physical
door may have a reader installed on both sides - in this case it would be
referred to as two ‘doors’ in the context of the system.
Door Contact
A device, usually a magnetic switch, which may be installed on a door to
monitor whether the door is open or closed.
Door Controller
A microprocessor based unit from which up to two doors may be
controlled. The door controller reports to and is administered by the PC(s).
The door controller makes the decision as to whether access is to be
allowed.
Door Open Time
If a door has a means of monitoring its state (closed or open) installed,
then it is possible to configure the system to produce a transaction if the
door is held open beyond a specified time.
Fail Safe / Fail Secure
These terms are used to describe the two common types of locks
available.
Fail Safe locks (also sometimes called ‘Power to Lock’) require a
permanent supply to keep the door locked. This type of lock would
normally be used if safety was most important - i.e. in the event of
equipment failure the door would become unlocked.
Fail Secure locks (also called ‘Power to Unlock’) require power to unlock
the door.
Key/card
An electronic identification device containing a unique code. This device is
held near to a Readykey reader to allow the code to be read, the door
controller then decides whether to release the lock.
