I may not fully understand so excuse if I make no sense. The plug coming out of the microkeyer represents your computer in the grand scheme of things. So with your existing cable (as I assume works today) where you would normally plug into the computer you would now plug into the db9 shell coming out of the microkeyer db37. If you did not buy the Orion cable from microkeyer you should build it exactly as they diagram.
Am I confused? Neal -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Stewart Baker Sent: Monday, October 24, 2005 8:09 AM To: Don Wilhelm; Jim; Elecraft Reflector Subject: RE: [Elecraft] MicroHam microkeyer Don and all, Thanks for your replies. I have read all the tales of distress and solutions to the mix of RS232 and non-RS232 re the K2 interface. Don't want to go there. The standard MicroKeyer to K2 lead set as far as I can tell seems to have a RS232 D type connector presumably male to go directly into a K2. My system has the link cable between the K2 and a separate KPA100 & KAT100. As the PC end of that cable is female I think that the MicroKeyer male connector should mate with that. MicroHam say look at the diagrams and modify the cable to suit. They only use TX, RX and ground pins. I was really hoping for someone who was using the MicroKeyer with a separate K2 and KPA100 combination so I can verify things. 73 Stewart G3RXQ On Sun, 23 Oct 2005 14:34:04 -0400, Don Wilhelm wrote: > Stewart and all, > > That is precisely why I hesitate to refer to the DE9 connector on the > KIO2 and the KPA100 as an 'RS232' connector. > > To those not yet informed, please be aware that connecting a standard > RS232 serial cable to this K2 connector (and the other end to a > computer) will most certainly do harm to your K2. This connector > carries K2 control signals (non-RS232) as well as the RS232 signals > (only TXD and RXD and Signal Ground are RS232 standard levels). The > connector itself does not follow the RS232 standard - perhaps it would > have been better implemented as a DIN connector, but it is too late for that now. > > There are only 3 pins (OK, 4 if you include frame ground on pin 1) > that are > RS232 signals. The rest of the pins should not be subjected to the > up-to plus/minus 25 volts levels that may be present should the other > end of the cable be connected to a device which presents standard RS232 signals. > > For my own K2, I have put a plug into pin 4 and broken off pin 4 of > the mating cable, so only that special cable can be plugged into the > K2 to prevent an accident that can happen to the best of us. > > 73, > Don W3FPR > >> -----Original Message----- >> >> It seems to have the ability to send commands to the K2 via the >> serial port. >> What I meant to have said, was that Elecraft have some fairly non >> standard usage of the pins on a RS232 D type. >> >> 73 >> Stewart G3RXQ _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
