Serial Data

Tech Note

From all the articles on "fieldbuses", that is - Profibus, DeviceNet, CAN, ModBus, and others, one would think that these busses dominate. NOT TRUE! Good old RS-232 and RS-485 are still used in over 75% of process control networks.

To connect and protect devices on RS-485, Dataforth offers a fully isolated DIN rail converter / line driver, our DCP485. Dataforth's compact DIN package features a complete electrical isolation barrier and heavy-duty surge protectors rated to 1500Vrms (continuous) isolation, 6000 VDC (1 minute) surge and inherent 15KV ESD protection.

DCP485 Selection
DCP485 (PDF) specification sheet

Please feel free to contact our applications engineers at should you need any product selection assistance.

The DCP485 series provides many benefits over older designs:

  • Operates at the signal level
  • No addresses to set or program
  • Transparent to software and operating system
  • Data rates of 0 to 115.2K baud (bits per second)
  • Full duplex operation over two wire pairs
  • Four diagnostic LED indicators
  • May be powered from +10 to +30 VDC
  • Connections are made through pluggable screw terminals
  • You may multidrop up to 32 units
  • Provides RTS, DTR, or Auto RS-485 transmitter control
  • Operation over -40C to +60C temperature range
  • MTBF exceeds 100,000 hours
  • Block diagram / instructions on the nameplate
  • Competitively priced (call factory for details)

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