USB TO RS232/485/TTL (B) - isolated USB - RS232/RS485/TTL converter

Description

An isolated converter dedicated to industrial applications that provides easy communication between USB interface and RS232, RS485 and TTL standards. It is based on the popular CH343G chip and a series of built-in protection circuits, such as power isolation, ADI magnetic isolation and TVS diode, which ensure high reliability of the device. A built-in self-voltage fuse and protection diodes ensure stable current and voltage outputs and provide overvoltage protection.

The product's housing is made of aluminum alloy using sandblasting and anodic oxidation technology to ensure robustness and durability. There are three LEDs on the housing to indicate the status of the power supply and transceiver. The product also features high-quality USB-B and RS232 connectors, which allow seamless connection and disconnection of devices.

The module also has a built-in voltage level converter that allows operation in 3.3V and 5V TTL systems. The converter is characterized by fast communication, stability, reliability and safety. Therefore, it is an ideal choice for industrial control devices and applications with high communication requirements. Full documentation along with the necessary drivers is available on the product wiki page.

Features

• CH343G chip
• Product type: industrial optically isolated converter
• Host port: USB
• Device port:  RS485/RS232/TTL
• USB:
  • Operating voltage: 5V
  • Connector: USB-B
  • Protection: 200mA self-recovery fuse, isolated output
  • Baudrate: to 2 Mbps
  • Transmission distance: to 5 m
• 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: to 1200 m
  • Baudrate: to 600000bps
  • 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: to 15 m
  • 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
  • Baudrate: to 2 Mbps
• 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℃ to 70℃
  • Humidity: 5%RH to 95%RH
• Operating system: Windows 10/8.1/8/7/XP

Kit contains

• USB TO RS232/485/TTL (B) converter
• USB cable