Waveshare USB TO RS232 / RS485 / TTL

This is an industrial USB to RS232/485/TTL isolated converter with original FT232RL inside.
It features embedded protection circuits such as power isolation, ADI magnetical isolation, and TVS diode, etc. What's more, the USB TO RS232/485/TTL comes with an aluminium alloy enclosure, make it solid and durable to work.
The USB TO RS232/485/TTL is very easy to use, fully automatic transceiving without delay. 
Due to its fast communication, stability, reliability, and safety, it is an ideal choice for industrial control equipments and/or applications with high communication requirement.

Features:

• USB TO RS232, USB TO RS485, USB TO TTL (UART)
• Adopt original FT232RL, fast communicating, stable and reliable, better compatibility
• Onboard unibody power supply isolation, provides stable isolated voltage, needs no extra power supply for the isolated terminal
• Onboard unibody magnetical isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption
• Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightning-proof & anti-electrostatic
• Onboard self-recovery fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock resistance
• Fully automatic transceiver circuit with no delay, ensures the USB port communicates with different interfaces fastly and stably, without interfering each other
• Onboard TTL serial 3.3V/5V voltage translator, config the TTL level via switch
• Aluminium alloy enclosure with sand blasting and anodic oxidation, CNC process opening, solid and durable
• 3 LEDs for indicating the power and transceiver status
• High quality USB-B and RS232 connectors, smoothly plug/pull

Specifications:

• Product type: industrial optically isolated converter
• Baudrate: 300-921600bps
• Host port: USB
• Device port:  RS485/RS232/TTL
• USB: Operating voltage: 5V; Connector: USB-B; Protection: 200mA self-recovery fuse, isolated output; Transmission distance: ~5m
• RS485: Connector: screw terminal; Pins: A+, B-, GND; Direction control: hardware automatic control; Protection: 600W lightning-proof and surge-suppress, 15KV ESD protection (reserved 120R balancing resistor solder pads); Transmission distance: ~1200m; Transmission mode: point-to-multipoints (up to 32 nodes, it is recommended to use repeaters for 16 nodes or more)
• RS232: Connector: DR9 male; Protection: TVS diode, surge protection, ESD protection; Transmission distance: ~15m; Transmission mode: point-to-point
• TTL (UART): Operating voltage: 3.3V/5V; Connector: screw terminal; Pins: TXD, RXD, GND; Protection: clamp protection diode, over-voltage/negative-voltage proof, shock resistance; Transmission mode: point-to-point
• LED indicators: PWR: red power indicator, light up when there is USB connection and voltage is detected; TXD: green TX indicator, light up when the USB port sends data; RXD: blue RX indicator, light up when the device ports send data back
• Operating environment: Temperature: -15? ~ 70?; Humidity: 5%RH ~ 95%RH
• Operating system: Windows 10 / 8.1 / 8 / 7 / XP

Including:

• 1x USB to RS232/485/TTL
• 1x USB cable