ICP DAS USA LRA-900 User Manual page 19

Step 2: After setting, let the two modules into "Normal" mode. Then connect the
LRA-900#2's RS-232 Tx pin with Rx pin.
Step 3: Connect PC with LRA-900#1 and use Utility tool's "Test" mode to test the
RSSI info. of these two devices.
LRA-900 (RS-232/RS485 to LoRa Radio Modem) User Manual
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