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ARF868 series ARF7940BA radio modems from Adeunis

ARF868 series ARF7940BA radio modems from Adeunis

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ADEUNIS ARF7940BA radio modems from ARF868 series allow building a radio line that is a wireless counterpart of a regular RS485 interface in the 863-870 MHz frequency band.

Some of the advantages include:

  • real time data transfer (bidirectional half-duplex transmission);
  • easy implementation (to establish a connection, you just need a single pair of modems);
  • cost effectiveness (replacing a cable installation, which is expensive in case of applications over very long distances, with wireless connectivity in an available, open band);
  • 20 km data transfer range in the open, or more with a modem set up in the repeater mode;
  • radio signal strength ensures appropriate operation in industrial conditions, working alongside various interfering factors.

Other advantages of ARF7940BA radio modems:

  • ability to adjust the output power,
  • ability to choose from numerous available frequencies (radio channels).

ARF794AA specs:

Communications module type radio modem
Antenna type TNC
Frequency 863-870MHz
Interface RS232 / RS485
Receiver sensitivity -120 dBm
Supply voltage 4.5 - 36 V DC
Transmitter output power 27 dBm
Range 20km
Number of channels 19
Operating temperature -30 - 70°C
Transmitter power 500 mW
Transfer rate 57.6kbps
Body dimensions 135 x 75 x 35mm
Operating modes TNC, modem, repeater
See other ARF868 series modems available from TME.

Symbol Description
ARF7940BA Module: radio modem; TNC; 863-870MHz; RS232 / RS485; -120dBm


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