2-Channel 12V Relay Module Optocoupler High and Low Level Trigger for Arduino

Description

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Detail
1. Maximum load on normally open pin: AC 250V/10A, DC 30V/10A.
2. Trigger current 5mA;
3. Module can be set high level or low level trigger by jumper wire;
4. Power indicator light (green), relay status indicator light (red);
5. Module size: 50mm*41mm*18.5mm.
Module interface specifications:
1. DC+ : DC power supply positive pole
2. DC- : DC power supply negative pole
3. IN1 : channel 1 signal triggering pin
4. IN2 : channel 2 signal triggering pin
Relay output:
1. Normally closed pin (NC1) : channel 1 relay normally closed pin
2. Common pin (COM1) : channel 1 relay common pin
3. Normally opened pin (NO1) : channel 1 relay normally opened pin
4. Normally closed pin (NC2) : channel 2 relay normally closed pin
5. Common pin (COM2) : channel 2 relay common pin
6. Normally opened pin (NO2) : channel 2 relay normally opened pin
High or low level trigger option:
1. S1:It is option switch for channel 1 relay;
2. S2:It is option switch for channel 2 relay;
3. It is low level triger if COM pin connect to LOW pin; It is high level triger if COM connect to High.
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