1. Using The Ft2232hl Chip Solution, The High-Speed Communication Is Stable, Reliable And Has Good Compatibility. The On-Board Resettable Fuse And Protection Diode Can Ensure Stable Output Of Current And Voltage, Prevent Overcurrent And Overvoltage, And Improve Impact Resistance. 2. Supports Usb Expansion Of 2 Channels Of Rs485, Which Can Communicate Simultaneously And Are Independent Of Each Other. It Has A Built-In Rs485 Output Terminal 120r Resistor, Which Can Be Enabled Through A Jumper Cap And Can Be Switched Flexibly. 3. Onboard Integrated Power Isolation Can Provide Stable Isolation Voltage, And No Additional Power Supply Is Required At The Isolation End. An External Led Indicator Light Is Installed To Facilitate Checking The Power Supply And Signal ceiver Status. 4. On-Board Integrated Digital Isolation Can Perform Signal Isolation, With High Reliability, Strong Anti-Interference And Low Power Consumption. On-Board Tvs ( ient Voltage Suppressor) Can Effectively Suppress Surge Voltages And ient Spikes In The Circuit. Voltage, Anti-Static, Industrial Rail-Type Abs Environmentally Friendly Shell, Small Size, Easy Installation, High Cost Performance. 5. Indicator light: PWR: Power indicator light, connected to USB, lights up red when voltage is detected; TXD: mit indicator light, the green light turns on when data is sent from the USB port.; RXD: Receive indicator light, it lights up blue when data is sent back from the device interface. Product type:Industrial grade isolated USB to RS485 converter Host interface:USB Device interface:RS485 USB interface: Working voltage:5V Interface form:USB-B type interface Interface protection:200mA resettable fuse, isolated output mission distance:about 5 meters Isolated RS485 interface: Interface form:terminal block Direction control:Hardware automatically determines and controls the direction of data mission Interface protection:Prov