Operation
AC-F/G4x Family Installation and Programming Manual 23
4.4.1 Auxiliary Input & Output
For optimum usability in different applications, the controller’s
auxiliary input and output can be configured in ten different modes of
operation (see Section 5.8).
4.4.2 REX Button
The REX pushbutton is located within the premises and is used to
open the door from the inside. It is usually located in a convenient
location, such as next to the door or at a receptionist’s desk. The door
chime in the BL-D40 (if enabled) does not sound when the REX
pushbutton is used to open the door.
The function of the REX pushbutton depends on the Lock Strike relay,
whether it is programmed for failsafe or for fail secure operation.
Fail Secure Operation
From the moment the REX pushbutton is pressed, the door is
unlocked until the Lock Strike Release time has elapsed. After this
time, the door is locked, even if the REX pushbutton has not been
released.
Failsafe Operation
From the moment the REX pushbutton is pressed, the door is
unlocked until the REX pushbutton is released. In this case, the
Lock Strike relay only begins its countdown once the REX
pushbutton is released. This feature is designed to keep the door
open, when used in conjunction with fire systems.
4.4.3 Tamper Feature
If the controller is forcibly opened or the controller is removed from
the wall, a tamper event is triggered. A tamper signal is sent to the
BL-D40.
If the BL-D40 External Sounder receives a tamper event signal, it
activates a tamper output and a strobe light. The Siren time can be
easily programmed in the controller from 0 to 9 minutes.
The tamper event can activate the auxiliary output if the controller is
in Auxiliary Mode 3 (see Table 3).
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