1. USB TO RS232, USB TO RS485, USB TO TTL (UART) 2. Adopt FT232RL, fast communicating, stable and , better compatibility 3. Onboard unibody power supply isolation, provides stable isolated voltage, needs no extra power supply for the isolated terminal 4. Onboard unibody magnetical isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption 5. Onboard (Transient Voltage Suppressor), effectively suppress surge voltage and transient voltage in the circuit, -proof & anti-electrostatic 6. Onboard - fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock resistance 7. Fully automatic transceiver circuit with no delay, ensures the USB port communicates with different interfaces fastly and stably, without interfering each other 8. Onboard TTL serial 3.3V/5V voltage translator, config the TTL level via switch 9. Aluminium alloy enclosure with sand blasting and anodic oxidation, process opening, solid and durable 10. 3 LEDs for indicating the power and transceiver status 11. High USB-B and RS232 connectors, smoothly plug/pull Specifications: 1. Product type: industrial optically isolated converter 2. Baudrate: 300-921600bps 3. port: USB 4. Device port: RS485/RS232/TTL 5. USB: (1). Operating voltage: 5V (2).Connector: USB-B (3). Protection: 200mA - fuse, isolated output (4). Transmission distance: ~5m 5. RS485: (1). Connector: screw terminal (2). Pins: A+, B-, GND (3). Direction control: hardware automatic control (4). Protection: 600W -proof and surge-suppress, 15KV ESD protection (reserved 120R balancing resistor solder pads) Colour:black+green Material:Aluminum alloy Package Contents: 1 x USB TO RS232/485/TTL Isolated Converter 1 x USB Cable Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.