LS, There are no RS-232 signals on the ribbon cable. TXD and RXD are at CMOS levels through the ribbon cable and the conversion to RS-232 levels is done on the KPA100 board. BTW - the AUX I/O connector on the KPA100 (and the KIO2) is just what it says - it is NOT an RS-232 connector although it does contain 3 RS-232 level signals - TXD, RXD and Signal Ground. The remaining lines are K2 dedicated and are used for communicating with external Elecraft equipment such as the KPA100, XV transverters, and the KRC2. Plugging a standard PC computer serial cable into this AUX I/O connector can damage the K2 - build and use only the cable specified in the KPA100 (or KIO2) manual.
73, Don W3FPR lstavenhagen wrote: > Ok thanks Don. > > BTW, am I correct in observing that only the RF cable to J1, the power cable > to J4, the audio cable and the ribbon cable to the control panel are the > only connections of the KPA100 to the K2? I.e. does the RS-232 interface go > in through the ribbon cable? > > Looks like it's an easy affair to swap lids and turn it back into a normal > 10W K2 with just these connectors? > > Tnx es 73, > LS > > ------------------------------------------------------------------------ > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 9.0.733 / Virus Database: 271.1.1/2705 - Release Date: 02/23/10 > 02:34:00 > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
