Waveshare 25219 Industrial USB To 4Ch RS485 Converter

Features:1. Expand USB to 4-channel RS485, allowing each channel to communicate concurrently and independently2. Onboard TVS (transient voltage suppressor), effectively suppresses surge voltages and transient peak voltages in the circuit, and protects against lightning and static electricity3. Onboard self-restoring fuse and protection diode ensure stable current/voltage output, provide over-current/over-voltage protection, and improve shock-proof performance4. Onboard RS485 output terminal 120R resistor, enabled/disabled by DIP switch5. Aluminum alloy shell, oxidized matte surface, CNC process opening, sturdy and durable, excellent workmanshipProduct parameters:1. Host port: USB2. Device interface: RS4853. Baud rate: 1200bps-460800bps4. USB:Working voltage: 5VConnector: USB-BProtection: 500mA resettable fuse, ESD protectionTransmission distance: about 5m5.RS485Connector: screw terminalProtection: 600W lightning surge protection, 15KV ESD protectionTransmission distance: Maximum communication distance is about 1200m (low speed, turn on 120R resistor)Transmission method: point-to-multipoint (up to 32 nodes, repeaters are recommended for more than 16 nodes)6. Temperature: minus 40 degrees Celsius - 85 degrees Celsius7. Humidity: 5%RH-95%RH8. Operating system: Win7/8/8.1/10/11, Mac, Linux, Android9. Product size: 86.2 x 48 x 27.2mm10. Weight: 181 gramsPacking list:-USB to 4-way RS485 x1-USB Type A to Type B cable 1.2m x1