System Expansion - Renkforce AR-2808 Notice D'emploi

9. System expansion

The system can be expanded by up to 3 optional card readers, type AR-2808. In
expanded systems, the main device (AR-2808) acts as a system server for exchanging
data among connected devices.
Should you require assistance with expanding your system, please contact us at the
nearest Conrad establishment or our listed service address.
System link
( + ) Power supply
AR-2802
Auxiliary reader
Circuit diagram
AR-2802 Auxiliary reader (S)
1 2 3 4 5
( + ) ( – ) DATA TAMPER
12VDC I/O N.C.
More AR-2802 can be connected in parallel.
DATA I/O BUS
( - ) Minus
AR-2802
Auxiliary reader
6 7 8 9 10
LED BUZ D0 D1 RS232
DATA I/O BUS
Common GND
AR-2808
AR-2808 Master reader (SERVER)
( + )
12 V/DC
Power
( – )
supply
( – )
( + )
Server
1 2 3 4 5 6
( + ) ( – ) ( + ) ( – ) EG DATA
12VDC DOOR LOCK IN I/O
1N4004
( + )
*Jumper selection
Electric lock
for electric lock:
(1) FAIL-SAFE or
(2) FAIL-SECURE
Electric lock
7 8 9 10
DOOR BELL TAMPER
N.O. N.C.
Egress button
N. O.
( – )
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