... grounding)Black3INDOOR (indoor unlock input, low level unlock)Green4SENSOR (sensor signal input, low level when the door is closed)White5PULSE ( ... and undefined)Brown6ALARM (alarm signal output, high level alarm)Yellow7485B- (485 communication signal, negative)Purple8485A+ (485 communication signal, positive)White9GND (numerical, ... switch F18--Fingerprint access control, standalone or RS485 network