DUAL LED
AMBER:
MAINS
RED:
INHIBIT
INSTALLATION
ASSEMBLY
Make sure the location for installation has no strong low frequency electro-magnetic wave.
Especially in the range of 100-200Khz
If there is more than one keypads with the same operation frequency installed closely in the
location, make sure that they are at least 60cm (2ft) apart from each other to prevention
interference.
Do not apply power to the system while it is in installation.
Check carefully all the wirings are correct before applying power to the system for testing.
1) Prevent Interference:
The EM Card reader is working at the frequency of 125Khz. Installation precautions are necessary.
2) Prevent Accidental Short Circuit:
In the previous experience, most of the damages caused in the installation are accidental touching
of the components on circuit board with the wires carrying power. Please be patient to study the
manual to become familiar with the specifications of the system before starting the installations.
3) Split-decoded Access Control Door Lock
Description
Apart from stand-alone operation, the DK-2891 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-2891 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-2891
(SERVER)
(–) COMMON GND
(+) POWER SUPPLY
DATA I/O BUS
DK-2891
(SERVER)
DA-2800 OR
DA-2801
(DECODER)
ELECTRIC LOCK
-
A
LA
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.
PRECAUTIONS
Back Cover
Front Cover
CARD
READER
GREEN:
DOOR
1. GREY
2. PINK
6. BLACK
5. RED
4. ORANGE
3. PURPLE
8. BROWN
12. BLUE
11. GREEN
10. YELLOW
9. WHITE
7. LIGHT BLUE
TAMPER N.C.
OUTPUT RELAY 2
OR
DOOR BELL
GND (–)
12V
DC IN
(+)
N.O.
COM
N.C.
DATA I/O
(–) GND
EG IN N.O.
VERSION B
VERSION A
Содержание DK-2891A
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