Zksoftware SC 103 User Manual page 24

Appendix A:
SC103 Pinout
AL -
AL +
GND
Door Sensor
BELL -
+ 12V
}
Alarm
NC }
Lock
COM
NO
}
BUT
Button
SEN
}
BELL +
Bell
}
Power In
GND
}
RJ45-1
RJ45-2
Ethernet
RJ45-3
RJ45-6
WD 0
}
WD 1
GND
RXD
}
TXD
GND
}
485 +
485 -
}
BEEP
GLED Output
RLED
}
IWD 0
Wiegand In
IWD 1
}
GND
Power Out
+ 12V