Description5V 4 Channel Red Color Relay ModuleDescription:1. Maximum load:AC 250V/10A, DC30V/10A2. SMD optocoupler isolation, strong driving ability, stable performance; trigger current 5mA3. the module voltage 5V4. each channel module can be set high or low triggered by jumper5. fault-tolerant design, even if the control line is broken, the relay will not operate6. power indicator (green), 4 relay state indicator (red)7. interface design user-friendly, all interfaces are available through the wiring terminal direct connection leads, very convenientModule Port:1. DC : DC power supply positive2. DC-: DC power supply negative3. IN1: Channel 1 signal trigger terminal4. IN2: Channel 2 signal trigger terminal5. IN3 : Channel 3 signal trigger terminal6. IN4: Channel 4 signal trigger terminalRelay Output:1. NC1: Channel 1 relay normally closed pin.2. COM1: Channel 1 relay common pin.3. NO1: Channel 1 relay normally opened pin.4. NC2: Channel 2 relay normally closed pin.5. COM2: Channel 2 relay common pin.6. NO2: Channel 2 relay normally opened pin.7. NC3 : Channel 2 relay normally closed pin.8. COM3: Channel 2 relay common pin.9. NO3: Channel 2 relay normally opened pin.10. NC4 : Channel 2 relay normally closed pin.11. COM4: Channel 2 relay common pin.12. NO4: Channel 2 relay normally opened pin.High And 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. S3 : It is option switch for channel 3 relay.4. S4: It is option switch for channel 4 relay.
