OPI serve for optically and galvanically isolating RS232 interface signal conductors (OPI200), or for converting RS232 interface signals to RS422 or RS232 to RS485 (OPI400) as well as galvanically isolating them.

Typical areas of use

  • Optical and galvanic isolation of the interfaces of all MORSE system components, or other devices
  • Interface conversion RS232 to RS422, or RS485
  • Profibus


  • Supply voltage 5–30 V
  • Protection of data lines against over-voltage
  • Protection against polarity inversion of power supply
  • Indication LED for data conductors
  • Indication LED for supply voltage
  • Speed up to 250 kbps
  • Switching the direction of communication on the RS485 line done automatically or with an external signal with an arbitrary polarity
  • Termination and definition of the idle state of the RS485 line done with internal switches
  • Minimum dimensions, mounted on a DIN rail
  • Profibus compatible

Operating manual

Technical parameters

Transfer speed max. 250 kbps
Configurable speed for automatic switching of Tx-Rx on RS485 1 200, 2 400, 9 600, 19 200, 38 400, 115 200 bps
MTBF (mean time between failures) > 100 000 hours
Power supply 5–30 V
Consumption max. 30 mA (OPI200)
max. 80 mA (OPI400)
Operating temperature range -25 to +55 °C
Storage temperature range -35 to +85 °C
Dimensions 23 × 75 × 102 mm
Weight 0.08 kg

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