Description
4-channel relay output modules, relay output contacts 250A 10A. Input IN1, IN2, IN3, IN4, the signal line LOW effective. VCC, GND power input, can relay a separate power supply relay power input of JD-VCC.
Uses:
support all MCU control.
the industrial sector
PLC control
smart home control
Wiring:
VCC: positive power supply system
GND: System power supply negative
IN1 – IN4: relay control ports