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 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 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 Transceiver Status. 4. On-Board Integrated Digital Isolation Can Perform Signal Isolation, With High Reliability, Strong Anti-Interference And Low Power Consumption. On-Board (Transient Voltage Suppressor) Can Effectively Suppress Surge Voltages And Transient 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: Transmit 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 Transmission distance:about 5 meters Isolated RS485 interface: Interface form:terminal block Direction control:Hardware automatically determines and controls the direction of data transmission Interface protection:Provides 600W protection, surge and 15KV electrostatic protection (onboard 120R balancing resistor) Transmission distance:about 1200 meters (at low speed) Transmission mode:point-to-many (up to 32 nodes, it is recommended to add a repeater for more than 16 nodes) Communication rate:300bps-3Mbps Usage environment: Temperature range:-15-70 Humidity range:5%RH -95%RH :macOS, Linux, Android, 11/10/8.1/8/7 Shell:Rail-type ABS environmentally friendly shell, suitable for 35mm DIN rail Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Colour:As Shown Material:ABS Package Contents: 1 * Converter 1 * USB Cable 1 * Screwdriver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.