
PR302 v1.0 Installer Manual EN Rev. B.doc 8/19/2008
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Connection terminals
Name Function
+12V Power supply plus
0V (GND) Power supply minus, also reference ground for inputs, RS485 and
CLK/DTA lines
IN1 IN1 input, internally pulled to supply plus through 5.6kΩ resistor
IN2 IN2 input, internally pulled to supply plus through 5.6kΩ resistor
IN3 IN3 input, internally pulled to supply plus through 5.6kΩ resistor
SHLD RS485 cable’s shield
RS485 A RS485 communication bus, line A
RS485 B RS485 communication bus, line B
CLK RACS Clock & Data interface, line CLOCK
DTA RACS Clock & Data interface, line DATA
TAMPER Tamper switch, line A, 24V/50mA rated
TAMPER Tamper switch, line B, 24V/50mA rated
IO2 IO2 transistor output 15V DC/1.0A
IO1 IO1 transistor output 15V DC/1.0A
REL1-NC REL1 output, normally closed contact, 24V/1.5A rated
REL1-COM REL1 output, common contact, 24V/1.5A rated
REL1-NO REL1 output, normally open contact, 24V/1.5A rated
Technical specification
Supply voltage 10-15 VDC
Current consumption
average 80 mA
Anti-sabotage Isolated contact, NC type, 50mA/24V rated, IP67
Reading distance UP to 12 cm for ISO card (depends on card type)
Cards EM 125 KHz (EM4100/4102 compatible)
Environmental class
(according to
EN50131-1)
Class I, Indoor, temperature: +5°C- +40°C, relative humidity: 10 to
95% (non-condensing)
Ingress protection IP 30
Dimensions 105 X 105 X 31 mm
Weight ~ 140g
Approvals CE
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