RS232 Male Port To RS485/422 Active Digital isolated Converter

WaveshareSKU: WAV-26121
Sale price £11.40
incl. VAT
excl. VAT
Only 10 units left

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This RS232 Male To RS485/422 Converter features the SP3232EEN and SP485EEN chips, which provide fast, stable, and reliable communication. It is designed with built-in galvanic isolation, providing protection against lightning, electrostatic discharges, and other electrical interferences, making it an ideal solution for industrial control equipment and projects demanding high communication integrity.

It supports transmission rates from 300 to 921600bps without requiring an additional power supply for isolated terminals. The device integrates unibody power supply isolation for stable voltage, digital signal isolation to reduce interference, and a transient voltage suppressor (TVS) to mitigate surge and spike voltages, providing enhanced circuit protection. Additional safety features include onboard self-recovery fuses and protection diodes that maintain stable current and voltage outputs while offering over-current and over-voltage protection to improve overall shock resistance.

We also have the same converter with a female port in our store


  • SP3232EEN and SP485EEN chips. Fast communication, stable and reliable, better compatibility
  • Stable transmission at the rate of 300~921600bps
  • Unibody power supply isolation, provides stable isolated voltage and needs no extra power supply for the isolated terminal
  • Unibody digital isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption
  • TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightning proof & anti-electrostatic
  • Self-recovery fuse and protection diodes, provides the current/voltage stable outputs, provides over-current/over-voltage proof, improves shockproof performance
  • 15KV ESD isolation protection and 600W lightningproof & anti-surge protection
  • 120R terminal resistor on the RS485/RS422 interface, disable by default, configurable by jumper
  • Power supply screw terminal, allows 5V~36V DC wide-range input
  • 3 LEDs for indicating the power and transceiver status
  • Industrial rail-mount ABS case design, small in size, easy to install, and cost-effective


Power Supply Interface Power supply 5~36V DC
Protection Anti-reverse
Baud Rate 300 ~ 921600bps
(300~115200bps is recommended for long-distance)
Device Port RS232, RS485/422
RS232 Connector DB9 male
Transmission distance About 15m
Transmission mode Point-to-point
RS485/422 Connector Screw terminal
Direction control Hardware automatic control
Protection 600W lightning proof and surge-suppress, 15KV ESD protection
Terminal resistor 120R, enabled/disabled via switch
Transmission distance About 1.2km
Transmission mode Point-to-multipoints (up to 32 nodes, use repeaters for 16 nodes or more)
Appearance Enclosure Rail-mount ABS case, suitable for 35mm DIN rail
Dimensions 81.9 x 54.0 x 32.0mm



Package Contents

  • 1x RS232 DB9 Male TO RS485/422
  • 1x Screwdriver

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