ICP DAS LRA-900 RS-232/RS-485 to LoRa radio modem

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ICP DAS’s LRA-900 is an RS-232/RS-485 to LoRa radio modem designed for remote communication, which operates in a transparent transmission mode and makes use of the physical layer of LoRa (long-range) transmission technology. It provides a maximum line-of-sight (LOS) transmission distance of 1500 m at an RF bit rate of less than 1000 bps.

To overcome any interference that might be encountered during use in harsh environments, the product allows the minimum RF transmission bit rate to be configured to as low as 250 bps, enhancing the modem’s capability to resist noise and other interference. Harsh environments are no barrier to device operation either, as the unit can operate in temperatures spanning from -25 up to 75°C.

The RF channels and Group IDs can be adjusted, which is helpful for avoiding interference in situations where two LRA-900 networks are operating adjacent to each other. The RF channels and Group IDs can be configured in order to distinguish and control different LRA-900 networks.