K2 KIO2 - Serial to USB
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My K2 has KIO2 RS232. Most of the computers now does not have the RS232 DB9
port. I wonder if I could use a FTDI serial to USB cable to connect my K2. 73 -- George Rebong KE6TE ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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You can use a USB to serial converter, but you MUST make a special cable to connect to the K2 that only connects some of the RS232 lines. Look at the K2 manual for info. If you don't do this you can do serious damage to the K2!
Vic 4X6GP/K2VCO > On Aug 27, 2015, at 4:27 PM, George Rebong <[hidden email]> wrote: > > My K2 has KIO2 RS232. Most of the computers now does not have the RS232 DB9 > port. I wonder if I could use a FTDI serial to USB > cable to connect my K2. > > 73 > -- > George Rebong > KE6TE > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by George Rebong
George,
Do not plug the USB to serial adapter directly into the K2 AUX I/O connector, plug the adapter into the special cable made to connect to a computer serial port. The AUX I/O connector contains some non-RS232 signals that are used to control external Elecraft devices (KAT100, KRC2, XV series transverters) and those signal lines will not withstand RS-232 levels - in other words, you can damage the K2. USB to serial adapters differ, even those with the FTDI chip. Some do not like to run at the slow 4800 baud rate of the K2. If one does not work well, try another brand. 73, Don W3FPR On 8/27/2015 9:27 AM, George Rebong wrote: > My K2 has KIO2 RS232. Most of the computers now does not have the RS232 DB9 > port. I wonder if I could use a FTDI serial to USB > cable to connect my K2. > > 73 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: K2 KIO2 - Serial to USB
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In reply to this post by George Rebong
You can use a USB to serial adapter but you must make a cable/adapter than connects *only* pins 2,3 and 5. Other pins on the KIO2 connector are not compatible with RS-232 (+/- signal levels). 73, ... Joe, W4TV On 8/27/2015 9:27 AM, George Rebong wrote: > My K2 has KIO2 RS232. Most of the computers now does not have the RS232 DB9 > port. I wonder if I could use a FTDI serial to USB > cable to connect my K2. > > 73 > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Don Wilhelm-4
George,
Just in case it isn't quite clear. DO THE SPECIAL CABLE The special cable is what makes the DB9 jack safe to connect to any of the RS232 stuff, including the USB to serial adapter. The special cable, a "Y" cable, puts the three "safe" RS232 leads on one side of the Y and the "dangerous" Elecraft proprietary K2 internal voltages on the other side. If you have no external need for the proprietary voltages, you can just do the RS232 half of the Y to hook up serial stuff. There are useful variants of this You can do, such as the RS232 half of the Y only, with a mini tip ring sleeve stereo plug on the non K2 end. This with a "bundled" key lead hooks up the K2 to my bitty MicroHam CW Keyer for portable QRP contest operations. The CW Keyer then connects to my laptop with a USB cable, adding all the useful Winkey functions. Good luck and 73, Guy K2AV On Thursday, August 27, 2015, Don Wilhelm <[hidden email]> wrote: > George, > > Do not plug the USB to serial adapter directly into the K2 AUX I/O > connector, plug the adapter into the special cable made to connect to a > computer serial port. > The AUX I/O connector contains some non-RS232 signals that are used to > control external Elecraft devices (KAT100, KRC2, XV series transverters) > and those signal lines will not withstand RS-232 levels - in other words, > you can damage the K2. > > USB to serial adapters differ, even those with the FTDI chip. Some do not > like to run at the slow 4800 baud rate of the K2. If one does not work > well, try another brand. > > 73, > Don W3FPR > > On 8/27/2015 9:27 AM, George Rebong wrote: > >> My K2 has KIO2 RS232. Most of the computers now does not have the RS232 >> DB9 >> port. I wonder if I could use a FTDI serial to USB >> cable to connect my K2. >> >> 73 >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] > -- Sent via Gmail Mobile on my iPhone ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Don Wilhelm-4
Hello All:
I just installed the DVR in my K3 and now the LED above the mic control is orange and always on. What did I do? Everything works normally, including the DVR. Richard K7SD ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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Maybe you put the K3 in split mode?
Tom wa4ta > To: [hidden email] > From: [hidden email] > Date: Thu, 27 Aug 2015 12:08:39 -0700 > Subject: [Elecraft] K3 Mic LED Orange > > Hello All: > > I just installed the DVR in my K3 and now the LED above the mic control > is orange and always on. What did I do? Everything works normally, > including the DVR. > > Richard > K7SD > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Guy Olinger K2AV
If you make the cable up as a "Y", better label the two ends very clearly, or tape up the dangerous end to avoid accidentally connecting a serial port to the wrong side.
73, Matt VK2RQ On Thu, Aug 27, 2015 at 7:56 AM -0700, "Guy Olinger K2AV" <[hidden email]> wrote: George, Just in case it isn't quite clear. DO THE SPECIAL CABLE The special cable is what makes the DB9 jack safe to connect to any of the RS232 stuff, including the USB to serial adapter. The special cable, a "Y" cable, puts the three "safe" RS232 leads on one side of the Y and the "dangerous" Elecraft proprietary K2 internal voltages on the other side. If you have no external need for the proprietary voltages, you can just do the RS232 half of the Y to hook up serial stuff. There are useful variants of this You can do, such as the RS232 half of the Y only, with a mini tip ring sleeve stereo plug on the non K2 end. This with a "bundled" key lead hooks up the K2 to my bitty MicroHam CW Keyer for portable QRP contest operations. The CW Keyer then connects to my laptop with a USB cable, adding all the useful Winkey functions. Good luck and 73, Guy K2AV On Thursday, August 27, 2015, Don Wilhelm wrote: > George, > > Do not plug the USB to serial adapter directly into the K2 AUX I/O > connector, plug the adapter into the special cable made to connect to a > computer serial port. > The AUX I/O connector contains some non-RS232 signals that are used to > control external Elecraft devices (KAT100, KRC2, XV series transverters) > and those signal lines will not withstand RS-232 levels - in other words, > you can damage the K2. > > USB to serial adapters differ, even those with the FTDI chip. Some do not > like to run at the slow 4800 baud rate of the K2. If one does not work > well, try another brand. > > 73, > Don W3FPR > > On 8/27/2015 9:27 AM, George Rebong wrote: > >> My K2 has KIO2 RS232. Most of the computers now does not have the RS232 >> DB9 >> port. I wonder if I could use a FTDI serial to USB >> cable to connect my K2. >> >> 73 >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] > -- Sent via Gmail Mobile on my iPhone ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by wa4ta
Thanks Tom. That's all it was...Richard
On 8/27/2015 12:22 PM, tom armour wrote: > Maybe you put the K3 in split mode? > > Tom wa4ta > >> To: [hidden email] >> From: [hidden email] >> Date: Thu, 27 Aug 2015 12:08:39 -0700 >> Subject: [Elecraft] K3 Mic LED Orange >> >> Hello All: >> >> I just installed the DVR in my K3 and now the LED above the mic control >> is orange and always on. What did I do? Everything works normally, >> including the DVR. >> >> Richard >> K7SD >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to [hidden email] > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by George Rebong
On 8/27/15 at 2:17 PM, [hidden email] (Matt Maguire) wrote:
>If you make the cable up as a "Y", better label the two ends >very clearly, or tape up the dangerous end to avoid >accidentally connecting a serial port to the wrong side. Perhaps using one of the Elecraft USB <--> RS232 cables which terminates in a TRS plug instead of a DE9 connector would be a good idea. Then you would have a jack for the RS232 side and could safely use a DE9 connector for the Elecraft signals. 73 Bill AE6JV ------------------------------------------------------------------------- Bill Frantz | Airline peanut bag: "Produced | Periwinkle (408)356-8506 | in a facility that processes | 16345 Englewood Ave www.pwpconsult.com | peanuts and other nuts." - Duh | Los Gatos, CA 95032 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by vk2rq
The normal PC to K2 to KAT100 cable *is* a "Y" cable of sorts, look in
the KAT100 manual for the details. It is not possible to get it backwards because the PC end has female pins while the KAT100 end has male pins. The only "problem" that could occur with a properly made cable is that the connectors could be swapped between the K2 and the KAT100. The connector with 2 cables in it must connect to the K2 - if backwards, the KAT100 will work fine, but the PC connection will not. 73, Don W3FPR On 8/27/2015 5:17 PM, Matt Maguire wrote: > If you make the cable up as a "Y", better label the two ends very > clearly, or tape up the dangerous end to avoid accidentally connecting > a serial port to the wrong side. > > 73, Matt VK2RQ <x-apple-data-detectors://0> > > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: K2 KIO2 - Serial to USB
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Yes Don,
I for one thought I had a dead USB/serial converter until I realized that I had it connected backwards (K2 end to KAT100 and KAT100 end to K2)! It does not harm anything, but the PC will not connect. /OZ4UN -----Oprindelig meddelelse----- Fra: Elecraft [mailto:[hidden email]] På vegne af Don Wilhelm Sendt: 28. august 2015 15:05 Cc: [hidden email]; George Rebong Emne: Re: [Elecraft] K2 KIO2 - Serial to USB The normal PC to K2 to KAT100 cable *is* a "Y" cable of sorts, look in the KAT100 manual for the details. It is not possible to get it backwards because the PC end has female pins while the KAT100 end has male pins. The only "problem" that could occur with a properly made cable is that the connectors could be swapped between the K2 and the KAT100. The connector with 2 cables in it must connect to the K2 - if backwards, the KAT100 will work fine, but the PC connection will not. 73, Don W3FPR On 8/27/2015 5:17 PM, Matt Maguire wrote: > If you make the cable up as a "Y", better label the two ends very > clearly, or tape up the dangerous end to avoid accidentally connecting > a serial port to the wrong side. > > 73, Matt VK2RQ <x-apple-data-detectors://0> > > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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