RioRand 1 Channel Relay Module?Optocoupler Isolation Support High and Low Level Trigger 5V 12V 2PCS

About the 1 Channel Relay Module? 1.The module Operating voltage 5V 12V; 2.Fault-tolerant design, even if the control line is broken, the relay will not operate; 3.The power indicator (green), the relay status indicator (red); Module Interface Input ? 1, DC +: connected to the positive pole of the power supply (voltage according to relay requirements, 5V 12V) 2, DC-: connected to the negative pole of the power supply 3, IN: It can control the relay to pull high or low Relay Module Output: 1. NO: The relay module normally open interface, the relay is suspended before the suction, and the short is connected with COM after the suction. 2, COM: relay common interface 3. NC: The relay normally closes the interface, and the relay is shorted to COM before the suction is closed. High and low trigger selection: 1. When the jumper is shorted to LOW, it is triggered by low level; 2. When the jumper is shorted to high, it is triggered by a high level. About the Relay Technical Parameters Relay module:5V Quiescent Current:5mA Maximum current: 190mA Trigger current: 2-4mA Trigger voltage (low):0-1.5V Trigger voltage (high): 2.5-5V Relay module:12V Quiescent Current:5mA Maximum current: 80mA Trigger current: 2-4mA Trigger voltage (low): 0-4V Trigger voltage (high): 4.5-12V You need to pay attention: When there is no voltage in the relay coil, the relay does not connect, and the common end is connected to the normally closed end. When there is voltage, the relay is connected, and the common terminal is connected to the normally open end When the signal trigger end has a high or low level signal (press the setting function), the relay connects, which is equivalent to the switch closing. At this time, the circuit is turned on and the device will have power to work normally. Package include? 1*5V 1*12V