CONNECTION TERMINALS
1 - 2 : 12 - 24V AC/DC (Power Input Terminal)
Connect to 12-24V AC or DC power supply. The (-) supply and (-) GND (terminals 2 & 12) are the
common grounding points of the keypad system. No selection jumper is required for the full input
voltage range. Connect DC power with the (+) and (-) polarity indicated; and there is no polarity
discrimination for AC power input.
3 - 4 - 5 : OUTPUT 1 (Output Relay 1)
5 Amp relay dry contact controlled by the Group 1 User Codes/Cards, recommended for door strike.
Terminal 3 is Normally Closed (N.C.), terminal 5 is Normally Open (N.O.) and terminal 4 is the
common point of the two contacts. Use N.C. output for Fail-safe locking device; and N.O. output for
Fail-secure locking device. The relay is programmable for Start/Stop (toggle) mode or Momentary
timing mode. See programming Location 51 for the details.
6 - 7 - 8: OUTPUT 2 (Output Relay 2)
1 Amp relay dry contact with N.C. and N.O. outputs. Terminal 6 is the N.C.(Normally Closed). terminal
8 is N.O. (Normally Open) and terminal 7 is the common point of the two contacts, which is prepared
for actuating auxiliary device controlled by the keypad; or external door chime actuation controlled
by the bell button. The maximum rating of the relay contacts is 24 VDC/1A.
DK-2852C - Standard Version
The Output relay 2 in DK-2852C is controlled by the Group 2 User Codes and Cards. It is
programmable for Start/Stop (toggle) mode or Momentary Timer mode. See programming Location
52 for the details.
DK-2852D - Door Bell Button Version
The Output relay 2 in DK-2852D is controlled by the door bell button on the keyboard. It is an output
point for actuation of a low voltage external (optional) door chime. The contact point activates as
long as the bell button is pressed
BACK-LIT JUMPER
CONNECTION
TERMINALS
3) Split-decoded Access Control Door Lock
Description
Apart from stand-alone operation, the DK-2852 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-2852 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
Wiring Diagram
System Connection
DK-2852 (SERVER)
(–) COMMON GND
(+) POWER SUPPLY
DATA I/O BUS
DK-2852
(SERVER)
DA-2800 OR
DA-2801
(DECODER)
ELECTRIC LOCK
-
ALA
RM O/P
-
KEY ACT O
/P
-
N.O
.
-
COM
-
N.C
.
-
N.O
.
-
COM
-
N.C
.
-
N.O
.
-
COM
-
N.C
.
-
T
AMPE
R
-
GND
(-
)
-
DOOR SENS
-
O/P 1 INHI
B
-
IN
T.
L
OC
K
-
DU OU
T
-
DOOR BELL IN
-
EG IN
-
D
AT
A I/
O
-
KEY
PAD PW
R
-
GND
(-
)
-
12-24V DC
N.O.
ELECTRIC LOCK
1N4004
CATHODE
OUTPUT RELAY 1
N.O. Output for Fail-secure Lock
N.C. Output for Fail-safe Lock
N.C.
OUTPUT 1 OUTPUT 2 OUTPUT 3
DIGITAL KEYPAD
EGRESS BUTTON
MORE EGRESS
BUTTON CAN
BE CONNECTED
IN PARALLEL
DOOR BELL
BUTTON
N.O.
(-)
(-)
(-)
N.O.
N.O.
AD-1312 OR AP-960
(–) COMMON GND
(+) POWER SUPPLY
DATA I/O BUS
DA-2800 OR DA-2801
(DECODE)
this application.
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.
