In order to properly connect Iridium device to {{{device|}}}, Iridium has to be connect via RS-232 COM1 or COM2. Also PIN6 - power control (reference in image below) has to be connected to one of the {{{device|}}} DOUTs, in order to allow device to power ON/OFF Iridium device on demand.
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{| class="wikitable"
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|- style="font-weight:bold; text-align:center;"
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! <br />Pin. No
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! <br />Signal name
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! <br />Signal direction (with respect to Iridium Edge)