1Industrial grade design, communication is completely isolated, stable and reliable performance, transmission rate is up to 500Kbps 2Built-in high-quality DC/DC isolated power supply module realizes electrical isolation between ports 3Support multi-machine communication, can connect up to 128 nodes, and transmission distance is up to 1200 meters 4Data flow automatic control technology, automatically distinguish and control data transmission direction 5Multiple protective measures: positive and negative 15KV ESD protection; 600W dual channel TVS protection; 2.5KV communication isolation