REX Button
AC-015 Hardware Installation and Programming Manual
23
9.
REX Button
The REX button must be located inside the premises to be secured
and is used to open the door without the use of a proximity card or
PIN code. It is usually located in a convenient location, such as inside
the door or at a receptionist's desk. The function of the REX button
depends on whether the Lock Strike Relay is programmed for Fail Safe
Operation or Fail Secure Operation.
Fail Secure Operation:
From the moment the REX button is
pressed, the door is unlocked until the Lock Strike Release Time
has passed. After this time, the door is locked even if the REX
button is not released.
Fail Safe Operation:
From the moment the REX button is
pressed, the door is unlocked until the REX button is released,
plus the Lock Strike Release Time. In this case, the Lock Strike
Relay only begins its count down once the REX button is released.
When a door is opened with a REX button, no chime sound is
generated.