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switch, that directly cuts the power to an electromagnetic lock. This port is useful when using
electronic devices for egress like a proximity sensor or remote pushbutton.
DELAYED EGRESS FUNCTIONS
The controller is designed to provide delayed egress functions on Door 1 in addition to access
control functions. The “delayed egress cycle” is a timed unlock of Door 1 that is triggered by a
“Request to Exit” input. This feature is used to allow users to exit out of a locked door after waiting for a
15 or 30 second unlock countdown. There are two standards for this type of operation. These
standards are described in BOCA and NFPA 101 documentation.
In NFPA mode, the controller starts counting down after the Request to Exit input is actuated.
There is a 2 second nuisance delay on the Request to Exit input that prevents false alarms. After a
user holds down the request to exit device for more than two seconds, the delayed egress countdown
begins. The countdown duration is programmable between 15 and 30 seconds. For the next 15 or 30
seconds, the controller “beeps” an audible output and interchanges the led colors between green and
red. At the end of the countdown period, Output 1 unlocks, allowing the user to egress. Once the door
is unlocked, the audible alarm stays on continuously and the Red LED is lit. The unit stays in this state
until a manual reset procedure occurs. An administrator must (1) open the door for more than one
second, (2) close the door and actuate a “manual reset” switch. This switch is usually a key-switch.
After doing the reset, the alarm is halted and the controller returns to run mode.
In BOCA mode, a similar countdown occurs but the reset procedure is different. At the end of
the unlock cycle, a second relock cycle takes place. The relock cycle occurs once the door has been
opened and then re-closed. This relock cycle relocks the door automatically. If the door is re-opened
during this 30 second relock cycle, the relock cycle starts over again. This ensures that there is always
a 30 second window between user passages.
DOOR POSITION SWITCH FEATURES
Because both of the delayed egress modes rely on the opening and closing of the door, a Door
Position Switch (DPS) must be used. Typically, this is a magnetic reed switch that is part of an
electromagnetic lock, or a latch sensor in an electric strike. There is an input in the Delayed Egress
Terminal Block that provides a connection for this switch.
When using a DPS, the controller provides additional features. These features include an anti-
tail-gating feature and a forced door alarm feature on Door #1. The anti-tail-gating feature will relock
Output 1 immediately after a door closure. This prevents another user from “tail-gating”; tail-gating is
passing through the door immediately after another user has entered their code, effectively allowing two
people to pass using the first user’s code.
The Forced Door Alarm is triggered when the locking mechanism of a door is defeated. In this
case, the door is supposed to be locked, but the door position sensor is open. When this occurs, the
audible alarm turns on in order to alert a guard or administrator. The video recorder output is also
activated.
REQUEST TO EXIT OVERRIDE
The delayed egress key switch is used to reset the controller when the controller is in NFPA 101
mode. After counting down, the door unlocks and the controller waits until an administrator performs a
reset using the key switch. Normally, this key switch is a momentary type switch. If you use a two-
position maintained type key switch, instead of the momentary type, the key switch can be used to
override the delay egress countdown. When the countdown is overridden, the request to exit switch will
act as a remote release switch, instead of triggering the delayed egress cycle. This allows an
administrator to use the request to exit device to act as a remote release during special occasions. In
