Duane, Not to put a damper on your plans, but to serve as a caution. The AUXBUS signal is a one wire communications channel between the K2 and its options. If the length of the cable becomes too long, there will be significant delay between a query and a response on that AUXBUS signal which will produce errors - the first may likely be that the remote option (KP100/KAT100) will not be recognized by the K2. Those signals are not all RS-232 levels, they are internal K2 signals, and that is why the connector on the K2 is labeled "AUX IO" - do not connect a standard computer serial port cable directly to the K2, it will cause damage to the K2.
If I recall, the signaling has been tested out to 6 feet of cable, but it sounds like your plans will require more cable length than that. Please let us know how long a cable you have used and whether it performed without problems, I am certain several others would like to know too. 73, Don W3FPR dw wrote: > A number of you from the group have really helped me out incredibly!! > **** Huge thanks **** > > THIS GROUP ROCKS!!! :~] > > I run an SGC-237 auto-tuner outside the house. > Its the best setup I've ever had, and I don't want to lose its > functionality. > > I plan on locating the external 100 watt amp box for the K2 in a > different room. > It will be located in a room where I have power supplies and coax > line going outside to the auto-tuner. > > Since I already have an auto-tuner functioning, I'm wondering if there > is any need for the RS232 control line from the K2 to the amp box. > > I think perhaps at minimum, there is an RF-detect signal that must come > back from > the amp to the K2... if I understand the KIO2 document. > > Thanks again ALL. > Duane > N1BBR > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
