Professional USB to RS232-485-TTL converter with isolation and TVS protections

USB to RS232, USB to RS485, USB to TTL (UART) converter. It features fully automatic and delay-free transceiver circuit, ensuring fast and stable communication. Built-in TTL 3.3V/5V serial voltage converter with TTL level selection via switch. There are 3 status LEDs for power, TXD and RXD. The container is made of aluminum alloy, which makes it solid and durable. The USB-B and RS232 connectors are of high quality. Thanks to its fast, stable, reliable and secure communication; it is the ideal choice for industrial control equipment and/or applications with high communication requirements. It is equipped with protection circuits such as power isolation, magnetic isolation, self-resetting fuse, TVS (transient voltage suppressor), etc.

Technical features

·       USB TO RS232, USB TO RS485, USB TO TTL (UART)  

·       Uses original FT232RL chip, fast, stable and reliable communication, better compatibility

·       Power Isolation: Provide stable isolated voltage, no need extra power for isolated terminal

·       Magnetic Isolation: Enables signal isolation, high reliability, anti-interference, low power consumption

·       Built-in TVS (transient voltage suppressor), effectively suppresses overvoltage and transient voltage in the circuit, lightning-proof and anti-electrostatic

·       Built-in self-resetting fuse and protection diodes, ensures stable current/voltage outputs, provides over-current/over-voltage protection, improves shock resistance

·       Fully automatic transceiver circuit without delay, ensures the USB port communicates with different interfaces quickly and stably, without interfering with each other

·       Built-in TTL 3.3V/5V serial voltage converter, TTL level selection by switch

·       Aluminum alloy container with sandblasting and anodic oxidation, solid and durable

·       3 LEDs for indicating power and transceiver status

·       High quality USB-B and RS232 connectors

Technical specifications

·       Product type: industrial optically isolated converter

·       Baud rate: 300-921600 bps

·       Host Port: USB

·       Device Port: RS485/RS232/TTL

·       USB:

–         Operating voltage: 5 volts

–         Connector: USB-B

–         Protection: 200 mA self-resetting fuse, isolated output

–         Transmission distance: about 5 meters

·       RS485:

–         Connector: screw terminal

–         Pins: A+, B-, GND

–         Direction control: hardware automatic control

–         Protection: 600W lightning proof and surge suppressor, 15KV ESD protection

–         Transmission distance: ~1200 meters

–         Transmission mode: point-to-multipoint (up to 32 nodes, it is recommended to use repeaters for 16 nodes or more)

·       RS232:

–         Connector: DB9 male

–         Protection: TVS diode, surge protection, ESD protection

–         Transmission distance: ~15 meters

–         Transmission mode: point to point

·       TTL (UART):

–         Working Voltage: 3.3V/5V

–         Connector: screw terminal

–         Pins: TXD, RXD, GND

–         Protection: protection diode, overvoltage/negative voltage proof

–         Transmission mode: point to point

·       Status LED:

–         PWR (red LED)

–         TXD (green LED)

–         RXD (blue LED)

·       Operating temperature: from -15℃ to +70℃

·       Humidity: 5%RH ~ 95%RH

·       Supported operating systems: Windows 10 / 8.1 / 8 / 7 / XP

Documentation and useful links

Wiki: www.waveshare.com/wiki/USB_TO_RS232/485/TTL