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3) Split-decoded Access Control Door Lock
Description
Apart from stand-alone operation, the DK-2890 can be up-graded to high security Split-decoded
operation with a decoder unit DA-2800 or DA-2801. The decoder is inside the house with all the
input and output installations connecting to it. The DK-2890 manages the data in the system
with its Data I/O Bus. The decoder operates the door lock and the appliances directly according
to the commands from the keypad unit. This approach prevents the electric door lock or
appliance be operated due to sabotage at the external keypad.
Note: Make Operation Mode setting of the keypad in "Server Mode" with Location 94 = 1 in
this application.
System Connection
DK-2890
(SERVER)
Wiring Diagram
1. GREY
TAMPER N.C.
2. PINK
3. PURPLE
4. ORANGE
5. RED
12V
(+)
DC IN
6. BLACK
GND (–)
DK-2890
(SERVER)
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.
Always connect TAMPER terminal to (-) ground if not used.
Make 3-wire Connection (+, -, DATA I/O) to the keypad in
the DK-2800 series. More than one keypads can be
connected in parallel.
DATA I/O BUS
(+) POWER SUPPLY
(–) COMMON GND
DA-2800 OR
DA-2801
(DECODER)
DA-2800 OR DA-2801
(DECODE)
7. LIGHT BLUE
EG IN N.O.
8. BROWN
(–) GND
9. WHITE
DATA I/O
10. YELLOW
N.C.
11. GREEN
COM
12. BLUE
N.O.
AD-1312 OR AP-960
(–) COMMON GND
(+) POWER SUPPLY
DATA I/O BUS
DIGITAL KEYPAD
EGRESS BUTTON
MORE EGRESS
BUTTON CAN
BE CONNECTED
IN PARALLEL
DOOR BELL
BUTTON
OUTPUT 1
N.C.
(-)
N.O.
(-)
N.O.
(-)
N.O.
ELECTRIC LOCK
OUTPUT 2
OUTPUT 3
N.O.
OUTPUT RELAY 1
N.O. Output for Fail-secure Lock
N.C. Output for Fail-safe Lock
ELECTRIC LOCK
1N4004
CATHODE
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