5V Relay Module with Optocoupler Isolation Support High and Low Level Trigger Relay Red Board 8 Channel 5V Relay

Module Interface: 1. DC+: Connect the positive pole of the power supply 2. DC-: connected to the negative pole of the power supply 3. IN1-IN8: According to the setting of each way, the corresponding relay can be controlled by high or low level. Relay output: 24-line interface, all interfaces can be directly connected to facilitate user access. 1. NO1--NO8: The relay normally open interface, the relay is suspended before the suction, and it is short-circuited with COM after the suction. 2. COM1--COM8 relay common interface 3. NC1--NC8: The relay normally closes the interface, and the relay is shorted to COM before the suction is closed. High and low trigger selection: 1.> S1-S8 are the high and low level trigger selections of relays 1 to 8 in sequence; 2.> com is shorted with low, the corresponding relay is triggered by low level, and when com is shorted with high terminal, it is triggered by high level. Technical Parameters: Relay version: 5v Quiescent Current: 5mA Maximum current:190mA Trigger current: 2-4mA Low trigger voltage: 0-1.5V High trigger voltage: 2.5-5V. ? Highly Durable and 1-year Service Please contact us via vogurtime-support@foxmail.com. Always at your service;-)