LM400 / LM410: Communication issues with LM149 configuration software

Modified on Mon, 08 Jan 2018 at 02:52 PM

The LM410 is the same as the LM400 with the exception of an antenna.

  • Check the software version number of your module.
  • If 6.18/6.19 then it should have flow control enabled. So when connecting TX/RX lines you need to connect the CTS and RTS lines as well.
  • Version 6.64/6.61/6/57 has default flow control disabled and will only work with TX/Rx /GND line connection.
  • If specific software is required where the default settings are Resp-, Echo-, then the LM149 cannot be used directly. The LM149 works properly if  the test module has Resp+, Echo+ settings.

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