AEI DK-2890 - Installation Guide; Keypad Assembly; Installation Precautions

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.
1) Dual-station Access Control Door Lock
Description
Owner can select an auxiliary reader AR-2802 or an auxiliary reader-keypad AR-2806, AR-2807
or AR-2809 and connect it with the master keypad DK-2890 to expand the system with
dual-station for user convenience. Simply connect the reader or the reader-keypad in parallel
with the Data I/O Bus of the master keypad. The auxiliary reader accepts all the cards that are
programmed in the master keypad. If it is an auxiliary reader-keypad it accepts cards and user
codes like the master keypad.
Note: Keep Operation Mode setting of the keypad in “Keypad Mode (default)” with Location
(–) COMMON GND
(+) POWER SUPPLY
DATA I/O BUS
DK-2890
(MASTER KEYPAD)
AR-2802 S or A
(AUXILIARY READER)
ELECTRIC LOCK
Wiring Diagram
System Connection
Dual-Station Access Control Door Lock

94 = 0 in this application.
PRECAUTIONS
654321
LED
DATA
I/O
TAMPER
N.C.
( + ) ( – )
12-24V DC
(–) COMMON GND
(+) POWER SUPPLY
DATA I/O BUS
AR-2802S AUXILARY READER
OR
AR-2802A
12V DC
POWER
SUPPLY
AD-1312
OR
AP-960
ELECTRIC LOCK
N.O. N.C.
OR
CATHODE
1N4004
OUTPUT RELA
Y
N.O. Output for
Fail-secure Loc
k
N.C. Output for
Fail-safe Lock
EGRESS
BUTTON
MORE EGRESS
BUTTONS CAN
BE CONNECTED
IN PARALLEL
N.O.
N.O.
THE WIRE HARNESS
DK-2890
,167$//$7,21
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