User manual
For DK-2882B & DK-2882D Only* 10 : OUTPUT 3 (NPN Transistor Open Collector Output)
An NPN transistor open collector output is for the version “B” & “D” keypads, which is controlled by the Group 3 User
PINs or Cards for Output 3. It has the maximum power rating of 24VDC/100mA sink. It is equivalent to an N.O. (Normally
Open) terminal referring to ground. It can be used to drive small power device, such as a relay or a low power control
point of other equipment. This output point is programmable for Start/Stop (toggle) mode or Momentary timing mode.
See programming Location 53 for the details.
For DK-2882B & DK-2882D Only* 11 - 12 : DOOR BELL (Output Relay Contact for Door Bell)
Door Bell output is for the version “B” & “D” only. It is a Normally Open (N.O.) relay dry contact with maximum rating of
24VDC/1Amp. It is prepared as a triggering contact of a low voltage door chime. The contact point keeps close as long
as the bell button on the keypad is pressed.
13 : “K” OR “A” O/P (Keypad Active Output or Alarm Output)
An NPN transistor open collector output with the maximum power rating of 24VDC/100mA sink. It is equivalent to an
N.O. (Normally Open) terminal referring to ground. It can be used to drive small power device, such as a relay or a low
power control point for other equipment. This output point is selectable to give Keypad Active Output or Alarm Output
via the Selection of the “K or A” jumper.
a) Keypad Active Output (“K”) --- It switches to (
-
) ground for 10 seconds on each key touch. It can be used to
turn on light, CCTV camera, or buzzer to notify a guard. See Application Hints for more information.
b) Alarm Output (“A”) --- It switches to (
-
) ground while Alarm occurs in order to trigger external alarm to give
notification at remote location.
14 : DU OUT (Duress Output)
An NPN transistor open collector output with the maximum power rating of 24VDC/100mA sink. It is equivalent to an N.O.
(Normally Open) terminal switching to (
-
) ground after the Duress Code is entered. Use it to trigger an alarm zone of a
security system, or turn on a buzzer to notify a guard.
15 : (
-
) GND (Common Ground)
A grounding point of the keypad that is common to terminal 2.
16 : DOOR SENS N.C. (Door Position Sensing Input -- Normally Close)
A Normally Closed (N.C.) sensing point referring to (
-
) ground, with the help of a normally closed magnetic contact
monitors the open or close status of the door. It initiates the following functions for the system. Connect it with jumper
to (
-
) Ground if not used.
a) Door Auto Re-lock
The system immediately re-locks the door after it is re-closed before the end of the programmed time for output 1. It
prevents unwanted “tailgate” entry.
b) Door Forced Open Warning
The keypad generates “door forced open” warning and alarm instantly once the door is forced to open without a valid
user PIN, Card or egress button. The warning lasts as long as the time programmed (1
-
999 sec). It can be stopped
with an User PIN or card for output 1 at anytime. See programming Location 80 for the details.
c) Door Propped-up Warning
The keypad generates propped-up warning beeps (does not activates alarm output) while the door is left open
longer than the allowable time programmed. The warning will last as long as the door is open until re-closed. See
programming Location 81 for the details.
d) Inter-lock Control
The inter-lock control output always goes to (
-
) while the door is open, which gives signal to disable the other
keypad in the inter-lock system. See the Inter-lock terminal description for more information.
e) Door Opening Alarm
Door Opening Alarm is designed for the emergency door only. It is always given when the door is opened unless a
valid user code or card is used prior to the door is opened. See programming Location 91 for the details.
17 : O/P 1 INHIBIT N.O. (Output 1 Inhibit Control Input – Normally Open)
A Normally Open (N.O.) sensing input point for controlling the Output 1, with this terminal connecting to (
-
) ground,
the Egress Button, the group of User PINs and Cards for Output 1 are all disabled. It is prepared mainly for the cross
wire connection with the “Inter-lock O/P” point on the other keypad in an Inter-lock system.
NOTE: The inhibit function does not govern the Duress Codes and the Super User Codes. They are always valid.
8
37
APPLICATION EXAMPLES
1) BASIC WIRINGS OF A STAND ALONE DOOR LOCK
DK-2882
NOTE:
Connect the 1N4004 as close as possible to the lock in parallel with the lock power terminals of the lock to absorb
the back EMF to prevent it from damaging the keypad. The 1N4004 is not required if the electric lock is AC operated.
To avoid Electro-Static-Discharge from interfering with the operation of the keypad, always ground the (
-
) terminal
of the keypad to earth.
Always connect DOOR SENSOR terminal to (
-
) ground if not used.