<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">I bought Alex more than 10 years ago from TAPR, and I left it on the shelf so far.<div class=""><br class=""></div><div class="">Today I would like to use Alex with Hermes.</div><div class=""><br class=""></div><div class="">The following is the explanation of jumper setting to use Alex with 12V instead of 13.8V:</div><div class=""><br class=""></div><div class=""><div style="margin: 0px; line-height: normal; color: rgb(69, 69, 69);" class="">Note: if one plans to use an external 12 volt supply to AND on using Alex, then J17 pins 1 & 3 must be closed for the transmitter. Close J21to close the 12v Bus. Finally close J18 to enable the on board 12v Regulator which will supply Alex directly.</div></div><div style="margin: 0px; line-height: normal; color: rgb(69, 69, 69);" class=""><br class=""></div><div style="margin: 0px; line-height: normal; color: rgb(69, 69, 69);" class="">This is unclear for me since I’m not Anglophone. With the help of schematic of Hermes, I understand as follows;</div><div style="margin: 0px; line-height: normal; color: rgb(69, 69, 69);" class=""><br class=""></div><div style="margin: 0px; line-height: normal; color: rgb(69, 69, 69);" class="">J17: 1 and 3 closed. Is 2 also closed?</div><div style="margin: 0px; line-height: normal; color: rgb(69, 69, 69);" class=""><br class=""></div><div style="margin: 0px; line-height: normal; color: rgb(69, 69, 69);" class="">J12: 1 and 2 closed</div><div style="margin: 0px; line-height: normal; color: rgb(69, 69, 69);" class="">J18: 1 and 2 closed</div><div style="margin: 0px; line-height: normal; color: rgb(69, 69, 69);" class=""><br class=""></div><div style="margin: 0px; line-height: normal; color: rgb(69, 69, 69);" class="">U18, 13.8V to 12V regulator, has the same voltage for input and output, is that right?</div><div style="margin: 0px; line-height: normal; color: rgb(69, 69, 69);" class=""><br class=""></div><div style="margin: 0px; line-height: normal; color: rgb(69, 69, 69);" class="">Tokio</div><div style="margin: 0px; line-height: normal; color: rgb(69, 69, 69);" class="">JA1CCA</div></body></html>