EBYTE Industrial RS485 Hub,RS485 Communication Converter,photoelectric isolation design, stable communication for industrial environments. It uses photoelectric isolation technology to protect the master and slave stack devices from interference.The shell adopts three-proof coating, which is Anti-Fungal, Anti-Humidity, and Anti-Salt Spray.The circuit is designed according to the EMC level 3 standard, which can effectively isolate the damage caused by lightning and static electricity to the equipment. No configuration is required, and transparent data transmission is carried out between the master and slave interfaces.