1pcs 1-Bit AC 220V Optocoupler Isolation Module
- Output TTL level can be detected with the microcontroller. The power supply can be 3-5V.
- the PLC input terminal of the PLC COM power supply 24V input termination of the board signal output OUT, optocoupler board GND power negative.
- When the power module in the power of the board after the white wire frame can not touch any device .. because it is high voltage. Note the safety of electricity.