RS232 signals

  RXD - receive data
  TXD - transmit data
  RTS - RTS flow control
  GND - ground

RS485 signals

  A - receive/transmit data
  B - receive/transmit inversed

RS232 to RS485/422 converter

  User Selectable RS-422 or RS-485
  User Selectable Two- or Four-wire RS-485
  Intelligent Control of RS-485 Transmitter and Receiver
  DTE/DCE Compatible
  Data Rates Up to 1 MBPS
  Supports 32 Users
  Uses Single Twisted Pair
  Programmable Contention
  Selectable Termination
  TD and RD LEDs

RS422 signals

  A - receive data
  B - receive data inversed
  A - transmit data
  B - transmit data inversed

Circuit:

Prices:

1. RS232 -> RS485/422 converter – 150,00 levs.
2. RS232 -> RS485/422 converter – 180,00 levs.
(in box, +power supply 220V, +cable DB9)

(VAT not included)

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