Red board 2-way relay module with optocoupler isolation support high and low level trigger Development Board

One module description:
1. The module adopts relays and normally open interface loads: AC 250V/10A, DC 30V/10A;
2. Adopting patch optocoupler isolation, with strong driving capability and stable performance; Trigger current 5mA;
3. The working voltage of the module is available in 5V, 9V, 12V, and 24V options;
4. The module can be triggered by setting high or low levels through jumper wires;
5. Fault tolerant design, even if the control line is broken, the relay will not operate;
6. Power indicator light (green), relay status indicator light (red)
7. The interface design is user-friendly, and all interfaces can be directly wired out through terminal blocks, which is very convenient
8. Module size: 50mm * 46mm * 18.5mm (length * width * height)
9. There are 4 fixed bolt holes with a diameter of 3.1mm and a spacing of 44.5mm * 35.5mm
Two module interface:
1. DC+: Connect to the positive power supply (voltage according to relay requirements, with options of 5V, 9V, 12V, and 24V)
2. DC -: Connect to negative power supply
3. IN1:1 signal trigger terminal, can be set to high or low level to control relay closing
3. IN2: 2-channel signal trigger terminal, can be set to high or low level to control relay closing
Relay output terminal:
1. NO1:1 relay normally open interface, suspended before closing the relay, short circuited to COM1 after closing
2. COM1:1 relay common interface
3. NC1:1 relay normally closed interface, short circuited to COM1 before relay closing, suspended after closing
4. NO2: normally open interface for 2-channel relay, suspended before closing the relay, and short circuited to COM2 after closing
5. COM2: 2-channel relay common interface
6. NC2: 2-channel relay normally closed interface, short circuited to COM2 before relay closing, suspended after closing

3、 Technical parameters:
Relay version static current current trigger current trigger voltage (low) high
5V       5mA      190mA       2-4mA     0-1.5V        2.5-5V
12V      5mA      80mA2-4mA     0-4V         4.5-12V
24V      5mA      50mA2-4mA0-8V         8.5-24V

High and low level trigger selection terminal:

1. S1 is the high and low level trigger selection for one relay;

2. S2 is the high and low level trigger selection for 2-channel relays;

When com is short circuited to low, the corresponding relay is triggered at a low level, and when com is short circuited to high, it is triggered at a high level