The module is suitable for 5V TTL and RS422 signal mutual conversion, RS422 level is full-duplex level signal, the use of this module can be achieved SCM serial port and RS422 signal conversion.
With over-voltage and over-current protection circuit real-time protection RS422 level signal to protect the MAX490 chip's normal work.
The module except for the pin, Use SMD components to ensure better signal transmission, thereby enhancing the system EMC and other characteristics, the module as possible in more harsh environments.
With power and send & receive Indicator lights.
The back of the product with wiring diagram.