Module Description:
1, the module uses genuine quality relay, normally open interfaces Maximum load: AC 250V / 10A, DC 30V / 10A;
2, using SMD optocoupler isolation, driving ability, stable performance; trigger current 5mA;
3, the module voltage 5V
4, the module can be set to trigger high or low with jumpers;
5, fault-tolerant design, even if the control line is broken, the relay will not operate;
6, the power indicator (green), relay state indicator (red)
7, user-friendly interface design, all interfaces are available through the wiring terminal direct connection leads, very convenient
8, module size: 50mm * 26mm * 18.5mm (L * W * H)
9 with four mounting bolts holes, hole 3.1mm, 44.5mm * 20.5mm pitch

Module interface:
1, DC +: positive power supply (
2, DC-: negative one
3, IN: can be high or low level control relay
Relay outputs:
1, NO: normally open relay interfaces, relay before hanging, pull back with COM
2, COM: Relay Common Interface
3, NC: normally closed relay interfaces, relay before with COM, pull vacant post
 
High and low end of the trigger selection:
1. jumper LOW LOW trigger short-circuited;
2. When the trigger is high with high short jumper.