USB to TTL / RS485 Serial Converter Adapter

  • RM20.00

  • Product Code: USB-TO-TTL/RS485
  • Availability: In Stock


This module interfaces USB to RS-485.  It has Auto Direction control, making it easier to use as RS-232/TTL Serial Interface replacement.

RS485 is used for Serial Communications over longer distances than direct RS232 or TTL, and supports multiple units on the same bus (Multi-Drop)



  • Support Windows98 / ME / 2000 / XP / WIN7 / Vista / Linux / Mac
  • Support devices with RS485 interface: surveillance cameras, video capture device, fingerprint attendance machine, PBX, CNC machine, microcontroller, etc.
  • This converter provides two way serial communications signal
  • Conversion between the RS485
  • To and from a personal computer USB port
  • Using virtual serial COM port
  • Self-powered from USB w/ FT232RL + 75176 chips



  • Standard: USB2.0 standard, backward compatible, in line with the standard RS485
  • Direction control: the use of automatic data flow control, auto distinguish and control data transfer direction
  • Baud: 300-9216000bps, automatically detecting the serial signal data rate
  • Load capacity: support multipoint, each converter allows RS485 interface device to connect 32
  • Interface Protection: TVS tube protection, USB self-recovery protection
  • Size: Approx. 76 x 18.5 x 16mm


Package included

1 x Serial Converter Module


This converter provides two way serial communications signal conversion between the RS485
to and from a personal computer USB port using virtual serial COM port. Can have up to 32 devices on the bus.

The 4 jumpers connect the USB interface to the RS485 interface. If the jumpers are removed, the USB interface may be used as a TTL Level Serial port.


The drivers for Windows can be loaded by this program from FTDI:


Plugging the USB interface in then should show a Virtual Serial Port in Device Manager.


Self-powered from USB  Uses  FT232RL+75176 chips

Can be used to connect PC to one or more Arduino or other Microcomputers with RS-485 modules.


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Tags: Converter, RS485, TTL