... CN1 Interface Definition PinsSignal NameDescriptionDescription10 Voltspower 2+24 V DC3GND Logic 04ReceiveCard need to receiveInput required 200ms low voltage5RejectCard need to ... , required 200ms low voltage8Time1When the pin is logic high, T1=30sWhen the pin is logic low, T1=60sInput 10K resistance push-up ...