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Reply To: New Xbee Modem: XB3-C-GM1-UT-001

Home Forums Mayfly Data Logger New Xbee Modem: XB3-C-GM1-UT-001 Reply To: New Xbee Modem: XB3-C-GM1-UT-001

#18674
neilh20
Participant

    Oh interesting, Thanks for sharing,   Sounds like it connected some of the time, showing that it was possible to connect.  I’ve found there are four source of failure – setup to cell tower,  TCP/IP setup, POST ack,   MMW timeout,

    I found this  hardware data sheet – but it turns out there is a GM1 and GM2 – GM1 is the low power. I wonder which one you got?. https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/6378/XB3-C-GM2-UT-001.pdf

    SUPPLY VOLTAGE 3.3 – 4.3 VDC
    AVG TRANSMIT CURRENT (LTE-M) 1.25 A peak, 410 mA average (GM2 modules), 450 mA peak, 200 mA average (GM1 modules)

    I was just wondering is the Mayfly 1.1 likely to handle the GM2 peak? though peaks are always a difficult number, as it should specify somewhere the capacitor (or pulse width) needed to handle that peak.

    The XB3-C-A2-UT the data sheet .

    SUPPLY VOLTAGE Standard Version: 3.3-4.3VDC;
    PEAK TRANSMIT CURRENT Standard Version: 550mA;
    AVG TRANSMIT CURRENT 235mA

    For the low power (GM1) version of fw,

    https://hub.digi.com/support/products/digi-xbee/digi-xbee-3-global-lte-mnb-iot/

    and found this User Guide (I had to feed a few dragons tasty data on the way there)  https://www.digi.com/resources/documentation/digidocs/PDFs/90002420.pdf

    https://www.digi.com/resources/documentation/digidocs/90002420/default.htm#containers/cont_at_cmds.htm?TocPath=AT%2520commands%257C_____0

    I have had this recent email for a survey on Digikey,  (pasted below, hope it comes out ~ feel free to click on what you think)

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    Thank you for taking the time to participate in this survey.

    Ron Konezny
    President & CEO
    Digi
    <table border=”0″ cellpadding=”0″ align=”center”>
    <tbody>
    <tr>
    <td>
    <div>What is your overall impression of Digi?</div></td>
    </tr>
    <tr>
    <td>
    <table border=”0″ width=”100%” cellspacing=”5″ cellpadding=”0″>
    <tbody>
    <tr>
    <td>Very favorable</td>
    </tr>
    <tr>
    <td>Somewhat favorable</td>
    </tr>
    <tr>
    <td>Neither favorable nor unfavorable</td>
    </tr>
    <tr>
    <td>Somewhat unfavorable</td>
    </tr>
    <tr>
    <td>Very unfavorable</td>
    </tr>
    </tbody>
    </table>
    </td>
    </tr>
    </tbody>
    </table>