817 4 Channel Optocoupler Isolated Board Voltage Converter Adapter Module

Features: 4. If it is a pulse signal, please note that the limit of 817 is below 4KHZ. If the control signal is greater than 4KHZ, please do not use this module, it will not work properly. 5. Through the jumper cap can achieve whether the output is high potential output or low output. 6. The 4th and 817 on the board are independent, which can realize simultaneous control of different voltages, etc. Specification: Condition: 100percent Brand New Material: ABS The jumper can reach the exit gate: high potential or pull the exit pad Package list: Notes: 1. The actual product color may deviate from the photo due to light. 2. There may be a slight deviation in the measurement of product.