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Office equipment, IT, telecom devices.

Components and accessories for electric vehicles

Industrial Isolated USB To 4-CH RS232 Converter / USB To Serial Adapter

Status: Còn hàng

Trademark: Waveshare

Code: WS-26854

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  • Industrial USB to 4 independent RS-232 ports, supporting parallel communication

  • Uses original FTDI FT4232HL chipset for high stability and wide compatibility

  • Full electrical isolation between channels and host computer, protecting against noise and overvoltage

  • Multi-OS support: Windows, Linux, macOS, Android (via OTG)

  • High-speed data transmission up to 921.6 kbps per RS-232 channel

  • Rugged aluminum enclosure with excellent heat dissipation for industrial environments

  • Individual LED status indicators for each port for easy monitoring

  • Plug & Play operation, no external power supply required, USB-powered

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ARTICLE CONTENT:

Industrial Isolated USB To 4-Ch RS232 Converter, USB To Serial Adapter, Original FT4232HL Chip, Mac / Linux / Android / Windows Multi-OS Compatible, Wall-Mount Support

Industrial Isolated USB Converter

USB To 4-ch RS232

FT4232HL | Stable transmission | Multiple devices applicable | Multi-OS compatible

 

USB To 4-ch RS232 module, front view

Features At A Glance

  • Adopts original FT4232HL chip, fast communicating, stable and reliable, better compatibility
  • Supports USB to 4-ch isolated RS232, convenient for expanding multiple RS232 industrial serial devices
  • Onboard unibody power supply isolation, provides stable isolated voltage
  • Onboard unibody digital 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, lightningproof & ESD protection
  • Onboard self-recovery fuse and protection diodes, ensure the current/voltage stable outputs, provide over-current/over-voltage proof, improve shock proof performance
  • Onboard power supply screw terminal, allows 5V~36V DC wide range input
  • 9 LEDs for indicating the power and transceiver status
  • Aluminum alloy enclosure with sand blasting and anodic oxidation, solid and durable

Version Options

 

USB TO 4CH RS232

USB TO 4CH RS232
to 4-ch RS232 male port

 

USB TO 4CH RS232 (F)

USB TO 4CH RS232 (F)
to 4-ch RS232 female port

Specifications

PRODUCT TYPE Industrial USB to RS232 isolated converter
Host port USB
Device port RS232
Baud rate 300bps ~ 921600bps
USB Operating voltage 5V
Connector USB-B
Protection 200mA self-recovery fuse, isolated output
Transmission distance about 5m
POWER SUPPLY INTERFACE Power supply 5~36V DC screw terminal
Protection Anti-reverse
isolated RS232 Connector DB9 male/female
Protection TVS diode, surge protection & ESD protection, power isolation and signal isolation
Transmission mode Point-to-point
Transmission distance about 15m
Indicators PWR Red power indicator, lights up when there is USB connection and voltage is detected
TXD1~4 Green TX indicator, blinking when the RS232 port is sending data
RXD1~4 Blue RX indicator, blinking when the RS232 port is receiving data
operating environment Temperature range -40℃ ~ 85℃
Humidity range 5%RH~95%RH
Operating system MacOS, Linux, Android, Windows 11 / 10 / 8.1 / 8 / 7

 

Original Industrial Grade Chip

Onboard original FT4232HL chip,
Fast communication, stable & reliable, better compatibility

 

USB TO 4CH RS232 module, onboard original FT4232HL chip

Safer Isolated Design

  • Onboard unibody power supply isolation, provides stable isolated voltage
  • Onboard unibody digital isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption

 

USB TO 4CH RS232 module, inside components

Multiple Protection, Safe And Stable

Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & ESD protection. Onboard self-recovery fuse and protection diodes, ensure the current/voltage stable outputs, provide over-current/over-voltage proof, improve shock proof performance.

 

USB TO 4CH RS232 module with multiple protection

Multi system Support

Supports MacOS, Linux, Android, Windows 11 / 10 / 8.1 / 8 / 7, etc.

 

USB TO 4CH RS232 module with multiple system support

Aluminum Alloy Enclosure

Aluminum alloy enclosure with sand blasting and anodic oxidation, Solid and durable

 

USB TO 4CH RS232 module adopts Aluminum Alloy case

Pin definition

 

USB TO 4CH RS232 pin definition

Outline dimensions

 

USB TO 4CH RS232 outline dimensions

Resources & Services

 


WIKI: www.waveshare.com/wiki/USB_TO_4CH_RS232

USB TO 4CH RS232 (F)
to 4-ch RS232 female port

Specifications

PRODUCT TYPE Industrial USB to RS232 isolated converter
Host port USB
Device port RS232
Baud rate 300bps ~ 921600bps
USB Operating voltage 5V
Connector USB-B
Protection 200mA self-recovery fuse, isolated output
Transmission distance about 5m
POWER SUPPLY INTERFACE Power supply 5~36V DC screw terminal
Protection Anti-reverse
isolated RS232 Connector DB9 male/female
Protection TVS diode, surge protection & ESD protection, power isolation and signal isolation
Transmission mode Point-to-point
Transmission distance about 15m
Indicators PWR Red power indicator, lights up when there is USB connection and voltage is detected
TXD1~4 Green TX indicator, blinking when the RS232 port is sending data
RXD1~4 Blue RX indicator, blinking when the RS232 port is receiving data
operating environment Temperature range -40℃ ~ 85℃
Humidity range 5%RH~95%RH
Operating system MacOS, Linux, Android, Windows 11 / 10 / 8.1 / 8 / 7

Device preparation:

  • PC or host device with USB 2.0 or higher

  • Suitable USB cable and RS-232 serial cables

Hardware connection:

  • Connect the USB connector of the converter to the PC or host device

  • Connect each RS-232 port to external devices (CNC machines, PLCs, measurement devices, sensors, etc.)

Driver installation (if required):

  • Windows: Automatically detected, or install the FTDI driver from the official FTDI website

  • Linux/macOS: FTDI drivers are integrated into the OS kernel

  • Android: Use via USB OTG cable with a compatible serial communication application

COM port verification:

  • Open Device Manager (or equivalent system tool) to identify the four newly created COM ports

  • Each COM port corresponds to one independent RS-232 channel

Configuration and operation:

  • Select the correct COM port in the control or monitoring software

  • Configure baud rate, parity, data bits, and stop bits according to the connected device requirements

Maintenance notes:

  • Avoid frequent plugging/unplugging during active data transmission

  • Keep connectors clean and avoid operation in humid or high-static environments