39
INTELLIGENT EGRESS BUTTON – AN UNIQUE FEATURE OF THE KEYPAD
INTRODUCTION
Most of the keypads for access control are just for controlling “Going In” from outside. It is not
enough for today’s access control systems. In fact, controlling “Going Out” is also very important in
some public passage areas those are not allowed to use locks or digital keypads for stopping of
“Going Out” due to safety reasons. Such as hospitals, kindergartens, elderly homes, convenient
stores, emergency exits etc.. The wardens, teachers, shopkeepers and the guards are always
required to keep an eye on people to prevent unattended leaving, shoplifting, and unauthorized use
of the emergency exits.
The Intelligent Egress Button can be programmed to do something to get attention from the person
on duty before the door is opened. The button offers programmable egress delay, delay with
warning, holding button for the delay, momentary button contact with warning for the delay and
even gives alarm when a controlled door is opened.
Locations 90 and 91 are the places for setting the desired functions for the Egress Button.
The functions programmed to the Egress Button do not affect the normal operation of the keypad.
The operation of the keypad with Code or Card is always in the first priority to give instant action to
the output relay 1 for door strike.
It is
NOT
required to program the Egress Button with the special function in normal use. Just leave
it on its default values.
WHERE AND WHY “GOING OUT” NEEDS ATTENTION
Examples for some areas may need an Intelligent Egress Button:
Hospital:
Some of the patients are not allowed to leave the ward without doctor’s permission. An egress
button with exit delay and warning beeps will help the nurse or warden to get attention to the door
when the egress button is pressed. Further setting of the egress button with holding contact delay
even gives higher level of security to a controlled door.
Kindergarten:
Young children are always active. Some of them may be willing to go out to explore their ways of
playing. For safety reason, teachers have to watch all of them in the attended area. Leaving school
alone without the companion of parents or teacher is dangerous to young children. An egress button
with delay and warning beeps will be helpful to prevent the children trying to go out without getting
the attention of the teacher.
Elderly Home:
The elderly needs constant attention and care. Some old people have poor memory. They may forget
the way to come back if they leave home alone. An egress button with delay and warning beep will
easily get the attention of the warden before the door is open.
Convenient Store:
Most of the convenient stores have just only one or two shopkeepers on duty. They are usually the
cashier. Shoplifting may easily happen while the shopkeeper is busily serving customers at the
cashier desk. A holding contact egress button with delay and warning beeps may help to stop most
of the shoplifting. As the thief knows that he is gotten attention by the shopkeeper before the door
is open.
