Split-Decoded Access Control Door Lock - AEI DK-2822 User Manual

3) Split-decoded Access Control Door Lock

Description
Apart from stand-alone operation, the DK-2822 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-2822 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
DATA I/O BUS
(+) POWER SUPPLY
(–) COMMON GND
DK-2822
(SERVER)
Wiring Diagram
DA-2800 OR DA-2801
(DECODE)
DK-2822 (SERVER)
1 2 3 4 5 6 7 8
TAMPER (+) (–) DATA
N.C. DOOR LOCK I/O
AD-1312 OR AP-960
(–) COMMON GND
(+) POWER SUPPLY
DATA I/O BUS
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.
ELECTRIC LOCK
DA-2800 OR
DA-2801
(DECODER)
OUTPUT 1 OUTPUT 2
N.C. N.O.
OUTPUT RELAY 1
N.O. Output for Fail-secure Lock
N.C. Output for Fail-safe Lock
ELECTRIC LOCK
1N4004
DIGITAL KEYPAD
(-)
EGRESS BUTTON N.O.
(-)
MORE EGRESS
BUTTON CAN
N.O.
BE CONNECTED
IN PARALLEL
(-)
DOOR BELL
N.O.
BUTTON
63
OUTPUT 3
CATHODE