• A/C – Power supply that
provides alternating current.
Strikes will buzz when energized.
Normally Intermittent Duty
• AHJ – Authority Having
Jurisdiction, this may be a fire
inspector or some other building
• Audit Trail — The record of
authorized user requests, and
unauthorized attempts, that were
entered into the keypad.
• Battery Backup — A device
that provides power to the electrified hardware in the event of a
• D/C – Power supply that provides direct current, Strikes will
be silent when energized. Can be
used for Continuous Duty.
• EAC — Abbreviation for the
term Electronic Access Control.
• Electric Strike – Device used
to electronically lock and unlock
a door using existing lockset.
• Electrified Hardware —
Door hardware (Locks, hinges,
strikes or exit devices, etc.) that
are “wired” to operate electronically. Also known as “
• Electromagnetic Lock – Also
known as Maglock or Electro-magnetic Lock. These locks must
always be a fail safe device. That
is, they require power to lock.
• Fail Safe – Requires power to
Lock also known as Fail Un-
locked and Power to Lock
• Fail Secure – Requires power
to Unlock also known as Fail
Locked and Power to Unlock
• Key Pad — A series of push-
buttons that allow you to enter
a code to unlock the electrified
hardware on the door.
• Key Switch — An electronic
switch that is activate with a key
to unlock the door.
• Prox Reader — A ‘reader’
that allows authorized persons to
simply wave a ‘fob’ or a card to
activate the lock.
• Stand Alone Battery Operated Lock — Any one of a series
of locks that are designed to
operate without external power
supplies. Such as Securitron’s
SABL and KABA’s E-Plex.
• Transformer — A device that
converts voltages. For instance a
transformer will convert 120V/
AC to 12 or 24V/DC.
Just as it is with a mechanical
lock or exit hardware, there are
4. Securitron’s Electro-magnetic