2 Channel 5V relay with Optcoupter, each Channel can cutover high/low Level

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 is 5V; 4, the module can be set to high or low triggered by jumper; 5, fault-tolerant design, even if the control line is broken, the relay will not operate; 6, the power indicator (green), relay status indicator (red) 7, interface design humane, all interfaces can be connected directly via terminal wiring leads, very convenient 8, module size: 50mm * 41mm * 18.5mm (L * W * H) 9, has four mounting bolts holes, hole 3.1mm, 44.5mm * 35.5mm pitch Module Interface: 1, DC +: positive power supply (voltage required by the relay, there 5V.9V.12V and 24V choice) 2, DC-: negative power connection 3, IN1: 1 channel signal to trigger the end, you can set a high or low level control relay 3, IN2: 2-channel signal to trigger the end, you can set a high or low level control relay Relay outputs: 1, NO1: After a relay normally open interfaces, relay before floating, shorted pull with COM1 2, COM1: 1 relay common interface 3, NC1: 1 relay normally closed port, COM1 relay shorted before and after the pull-vacant 4, NO2: 2-way normally open relay interface, the relay before floating, pull back and COM2 short 5, COM2: 2 Common Interface relay 6, NC2: 2-way normally closed relay interface relay short front and COM2, pull vacant post High and low trigger selection ends: 1. S1 is a relay of high and low trigger selection; 2. S2 high and low for the two-way relay trigger selection; 3. When com and low are short circuit, triggering the corresponding relay is low, while the high end of the short com high trigger