4 Channel Relay Optocoupler Module Shield High Low Level Trigger 5-24v

Module Description: The module uses genuine quality relay, normally open interfaces 4 Channel Relay with Optocoupler Module Board Shield High Low Level Trigger 5v 12v 24v Maximum load: AC 250V/10A, DC 30V/10A SMD optocoupler isolation, strong driving ability, stable performance; trigger current 5mA The module voltage 5V / 12V / 24V The module can be set high or low triggered by jumper Fault-tolerant design, even if the control line is broken, the relay will not operate Power indicator (green), relay state indicator (red) Interface design user-friendly, all interfaces are available through the wiring terminal direct connection leads, very convenient Module Interface: DC+: positive power supply (VCC) DC-: negative power supply (GND) IN,IN2,IN3,IN4: can be high or low level control relay, S,S2,S3,S4, HIGHT OR LOW LEVER Relay Outputs: NO,2,3,4: normally open relay interface COM,2,3,4: Common Interface Relays NC,2,3,4: normally closed relay interface High and Low Level Trigger Options: It is low level trigger when jumper connect to LOW pin It is high level trigger when jumper connect to HIGH pin