PN# 500-16900
Page 14
Rev. D, 12/11
6.4 DOOR PROP ALARM FUNCTION
This function provides enhanced security at the door
by creating an alarm signal any time the door is left
open too long while being used for entry or exit.
With the function enabled, select a relatively long
door open time (see Section 4.5 to set timer). You
will then need a door switch whose contacts open
when the door opens. To wire the door switch, follow
the drawing to the right. You will give up the function
of disabling either the Hard code or all the User codes (see Section 7.2). Put the unit into
program mode and enter 8-2 to put this feature on the HCD terminal or 8-3 to put it on
the UCD terminal. You will see the two flash confirmation. Then, exit program mode. The
respective input terminal will have its meaning redefined. You will also give up the opportunity
to implement a doorbell or other use of the programmable relay.
Now, when a code is entered (or the REX input is used), the door will release for the relatively
long period of time programmed. If the door is not opened at all, the lock will resecure when
the set time expires and nothing further will happen. If the door is opened and recloses before
the time expires, it will resecure immediately upon closure. This is called anti-tailgating and
means that although you have selected a long release time, a second person will not be able to
use the door after a first person has, because the door resecures immediately upon reclosure. If
the door remains open for a longer period of time than is set on the timer, the programmable
relay will switch and will remain energized until the door closes or the keypad is used again.
Note that if you are using the programmable relay for another function you can enable anti-
tailgating alone (no alarm signal) as is described in Section 7.4.
Connection from the programmable relay is generally not
made to an alarm system, as if an alarm system is active
on the door, you can get the same “door open too long”
signal more simply by using the second pole of the lock
control relay to shunt the door switch (see Section 7.3).
Generally, you mount a Sonalert on the CPU board
enclosure. It will sound if the door is left open too long and this will act as a prompt for
someone near the door to close it. Sonalerts operate on 12-24 VDC so the wiring shown on the
drawing to the right should be used.
To terminate this function and return the HCD or UCD input to its standard use (and return the
programmable relay to the doorbell function), put the unit into program mode and enter 8-4.
You will see the two flash confirmation. Then, exit program mode.
6.5 NIGHTLIGHT FUNCTION
When this function is selected, the act of touching any key will operate the programmable relay
for five seconds. This may be used to turn on a lamp directed at the Keypad at night so that the
person using the Keypad can see to enter the code. Put the unit into program mode and enter
7-7. You will see the two flash confirmation. Then, exit program mode. Note that selection of
this option means you give up the opportunity to implement a doorbell or other use of the
programmable relay.
To return the programmable relay to factory set (doorbell) function, put the unit into
program mode and enter 7-8. You will see the two flash confirmation. Then, exit program
mode.
7. ADDITIONAL HARD WIRED OPTIONS
7.1 DUAL PAD OPERATION
If keypad control from both sides of the door is desired, two keypads can be connected to
one CPU Board. Simply put the colored wires from both keypads into the appropriate terminals
on the CPU Board such that 2 wires are in each terminal. Either keypad will then be able to
release the lock and both keypads will beep and illuminate their LED's when either one is used.
Two is the maximum number of keypads that can be connected to one CPU Board. Note that in
the unusual case where both keypads are being used simultaneously, the door will not release as
the sequence will certainly be disturbed. Only one keypad may be used at a time. Be sure you
SRC
UCD HCD
CONNECT A DOOR
SWITCH WHICH
OPENS WHEN THE
DOOR OPENS TO
UCD OR HCD
DEPENDING ON WHICH
COMMAND YOU CHOOSE
DOOR SWITCH
CX
NOX
DC I
N
/
O
U
T
+
SONALERT
AUDIBLE DOOR PROP ALARM
Summary of Contents for Securitron DK-26
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