Repeater 422-485

Industrial data converter


  • Supports several baud rates and formats
  • Automatic proceed reception / send
  • Rx and Tx LED indication
  • Line termination with 120Ω resistorsΩ resistors
  • Power supply 8 to 30Ω resistorsV DC / 220Ω resistorsV AC
  • Triple galvanic isolation up to 1.5kVDC
  • DIN 35mm rail mounting


Repeater 422-485 is a communication converter intended to use for galvanic isolation, and range and capacity extension of RS422-485 network. Operating mode, line termination, baud rate and data format are easy selectable by DIP switches mounted inside of the device. Power supply and both RS422-485 ports are for each other galvanic isolated. Device has wide power supply range, from 8 to 30V DC (DC version) or 220V AC (AC version). It is suitable for DIN 35mm rail mounting.

Theory of operation

Repeater 422-485 can operate either in two way or four way semi-duplex mode, either in four way full- duplex mode. Moreover, it can operate as four way in to two way converter wherewith it enables to connect RS422 interface in to RS485 multi-drop network. It has ground protection for noise suppression, voltage overstress and transients on both ports. Proceed reception/send is automatic, and proceed time is defined according to selected baud rate and data format by DIP switches. LED diodes indicate power supply status and status of Rx and Tx lines.


■ Galvanic isolation of RS422-485 line

■ Range extension of RS422-485 line

■ Capacity extension of RS422-485 system


Communication connectors2 x RS422-485, pluggable screw clamp 3.5mm, 1.5mm2
Baud rate and data formatup to 115200 bps, supports all data formats (9-12 bits)
Operating modetwo way and four way semi-duplex; four way full-duplex
Galvanic isolationTriple, up to 1.5kV DC
Line termination120Ω resistor per each line
LED indicationPower ON, Rx1, Tx1, Rx2, Tx2
Power supplyDC version: 8 to 30V DC, max 1.5W
AC version: 220V AC, max 2W
Power supply connectorPluggable screw clamp 3.5mm, 1.5mm2
Dimension90 x 35 x 70 mm (without connection blocks)
Weightcca 100g
Temperature range-20°C to +75°C, 0 to 95% RH (non condensed)
MountingDIN 35mm rail



Repeater 422-48510134Industrial data converter€150

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SKU# 10134

*Please note that all accessories are sold separately.


CB-DB9MF-2M21745Serial Cable Assembly 1.8~2m, DB9 Male to DB9 Female

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