strona główna

RS-485 / RS-422 to Current Loop Converter
ADA-4020

RS-485 / RS-422 to Current Loop Converter

87 ,00 EUR net*


* price for v. 4020-1-1-1-2-3

The ADA-4020 converts RS485/RS422 standard to Current Loop without interfering with format of transmitted data with maximum baud rate of 38,4kbps via 2-pair of twisted pair.
The converter has screw terminal block for connection of RS485/422, Current Loop networks and power supply. This device use RX+, RX-, TX+, TX- signals for operating.
Over-voltage protection was made on base safety diodes and fuses on each RS485/RS422 and Current Loop lines. You can connect 32 devices operate in half duplex mode (inquiry / response) on 2 or 4 wires, multipoint RS485/422 bus or full duplex mode on 4 wires RS485/422 bus, built on the base of ADA-4020 converters.
Using ADA-4020 you can also connect:
  • 2 devices operating in half duplex or full duplex mode in point-to-point topology,
  • 15 devices operating in half duplex mode in multipoint topology "current loop network".
This converter has internal, low energy surge protection for each Current Loop lines however it is recommended to use the external lightning arresters (typical protection of telephone line) for the lightning protection of lines.