7
Lock Relay Connection
Device Not Sharing Power with the Lock
COM1
+12V
GND
GND
Sensor
NC1
FR107
Diode
Normally Closed Lock
Notes:
1. The system supports NO LOCK and NC LOCK. For example the NO
LOCK (normally opened at power on) is connected with 'NO1' and
'COM1' terminals, and the NC LOCK (normally closed at power on) is
connected with 'NC1'and 'COM1' terminals.
2. When electrical lock is connected to the Access Control System, you
must parallel one FR107 diode (equipped in the package) to prevent
the self-inductance EMF from affecting the system.
Do not reverse the polarities.