DUTTY TTL to RS485 module hardware automatic flow control board RS485 mutual conversion TTL signal microcontroller serial port with 4Pin line 2pcs

Voltage range:DC 3.0V-30V, the limit voltage of 33V, the minimum voltage is higher than 2.8V. TXD & RXD Indicator: the TTL to RS485 Adapter is designed with Transmit Data indicator light and Receive Data indicator light, convenient for your monitoring. Perfectly compatible with 3.3V and 5.0V signals,the 485 bus is with lightning protection and anti-jamming function, with high EMC, EMI performance. Using anti-jamming alignment and copper to prevent signal interference. It supports communication of multiple machines that the same network can be connected to at least 40 nodes.