Availability: In stock

  • Buy 25 for £85.97 each

Quick Overview

The K3-ADE-TB is an isolated RS232 to RS485 converter for 1200-38400 baud.

  • Intended for RS232 to 2-wire RS485 conversion

  • Microprocessor-controlled automatic RS485 driver

  • RTS Control not needed

  • Not recommended for RS232 to RS422 (use K3-TB)

  • DB9 female connector on RS232, removable terminal block on RS485

  • Plugs directly into a standard PC DB9 RS232 port


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A general purpose RS232 to RS422 or RS485 isolated converter which contains a microprocessor which enables and disables the RS485 driver according to the presence of RS232 data. The K3-ADE-TB is intended for 2-wire RS485 applications. It is also suitable for 4-wire RS485 applications where the K3-ADE-TB is on the Slave device.

The ADE function can be disabled, to operate as the K3-TB RS232 to RS422 converter.

The K3-ADE-TB has a DB9 female connector on the RS232 port and a removable 5-way terminal block on the RS422 or RS485 port

Do not confuse the K3-ADE-TB with imitations which claim to be self-powered but which in fact require power to be supplied to both sides of the converter, or which require about 40mA - far too much for any PC interface to supply.

  • Automatic RS485 driver enable (ADE)
  • Isolation 100% tested at >1000V AC
  • RS232 port-powered in most applications
  • 1200-38400 baud
  • Very low supply current
  • RS232 output swings above and below ground
  • Very low cost

Additional Information


Product Datasheet

Price £90.50