QuidoDuplex RS

Características destacadas

  • Digital two state signals are transmitted from one to the other and also the other way via RS232 or RS485.
  • Maximum workung distance 1200 meters when using RS485 line (more with repeaters)
  • Wide power voltage range: 8(12) to 30 V DC.
  • Set consists of two I/O modules Quido RS 4/4 (or 8/8) with special firmware.
  • (power supply units not included, sold separately)


QuidoDuplex RS is a set of two I/O modules for RS485 line (two wires only) with a special firmware designed specificaly to transmit digital I/Os over RS485 line as an autonomous system - no PCs or PLCs needed. If one input is turned on, the corresponding output on the other unit is also turned on. Bi-directional.


  • Transmission of control states over greater distances (status indication).
  • Easy remote controll - bi-directional transmission can be used for control and monitoring.

Example of the bi-directional remote I/O transmissionover RS485 or RS232 line.

Example of bi-directional I/Os over RS485 line.

Referencia Descripcion
QUIDO_DUP_RS_4_1 QuidoDuplex RS - Extender of digital I/Os, RS485
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