User's Manual

5
12
Description
Maximum 3 auxiliary readers AR-2802 can be connected in parallel with the Data I/O Bus of
the AR2808 access control reader for multi-station operation. The auxiliary reader(s) works in
the same manner like the master reader in card reading. The master reader is the server of the
system in this example. It manages the data among the devices connected to the Data I/O
Bus.
1) Auxiliary Reader for AR-2808
ELECTRIC
LOCK
AR-2808
THE SERVER
AR-2802
AUXILIARY
READER
AR-2802
AUXILIARY
READER
DATA I/O BUS
( + ) POWER SUPPLY
COMMON( – ) GND
Wiring Diagram
AR-2802 AUXILIARY READER
10987654321
RS
232
BUZLED D1D0
DATA
I/O
TAMPER
N.C.
( + ) ( – )
12-24V DC
AR-2808 MASTER READER (THE SERVER)
10987654321
TAMPER
N.C.
DOOR BELL
N.O.
( + ) ( – )
DOOR LOCK
( + ) ( – )
12VDC
DATA
I/O
EG
IN
12VDC
POWER
SUPPLY
ELECTRIC
LOCK
*JUMPER SELECTION
FOR ELECTRIC LOCK OF
(1) FAIL-SAFE OR
(2) FAIL-SECURE
( + )
( – )
EGRESS
BUTTON
N.O.
DATA I/O BUS
( + )
( – )
( + ) ( – )
1N4004
System Connection
INSTALLATION
AR-2802 ASSEMBLY
Installation Location
The EM Card works at the frequency of 125Khz. Installation precautions are necessary:
i) Make sure the location has no strong low frequency electro-magnetic wave signals near it.
---Especially in the range of 100-200Khz.
ii) If more than one keypads/readers operating in the same frequency are installed closely, make
---sure that they are at least 60cm (2ft) apart from each other to reduce interference. Otherwise, the
---reading range may be reduced.
Precautions for Accidental Short Circuit
In the previous experience, most of the damages caused during installation are accidental touch of
the components on the circuit board with the wire(s) carrying power. Always be patient and the
following precautions are necessary:
i) Study the manual thoroughly to become familiar with the system before the installation.
ii) Do Not apply power to any connection terminal of the reader during the installation.
iii) Check all the wirings carefully and confirm that they are correct before applying power to the
----reader for testing.
APPLICATION EXAMPLES
FRONT COVER
BACK COVER
(Fix it on wall)