Thanks Ron... I know it is straight through, but the color codes on the shipping cable are key to my research/testing so I can determine:
1) Which signals are paired/not paired, and 2) Which pair signals are on (due to the differing twist rate on each pair). If the shipping cable isn't using twisted pair, I would be even more interested in doing some testing... Again, my ??s revolve around making extended cables and finding out how long they can be extended before "issues" arise... There are a number of ways to "trick" signal circuits into allowing longer than "standard" cables as "within spec". We made 30 foot long IDE cables that worked fine back when they were telling us that they could be no longer than 24 inches max... We also made standard length cables that actually IMPOROVED IDE HDD performance because we "cleaned up" the signals in various ways... As I said... just a thought exercise at the moment... 73, ______________________ Clay Autery, KY5G MONTAC Enterprises (318) 518-1389 On 7/16/2016 5:47 PM, Ron D'Eau Claire wrote: > Hi Clay: > > It is a simple straight through cable. I can't give you the color codes > because I don't have the specific cable being shipped. The cable I have is a > modified RJ12 (pin 1 disconnected at both ends so I don't care which one I > plug into the K3S). The factory was still making up cables when they sent a > field test K-Pod to me. > > I would not hesitate to make up another by just mounting a pair of male 6P6C > connectors on the ends of ordinary 6-wire telephone cable, clipping off one > wire since pin 1 isn't used. > > The Project Engineer hasn't mentioned any concerns about twisting conductors > or pairing the wires in any particular order. What I have is a flat cable > w/o any twisted pairs. I doubt if it is possible to connect the wires to the > connectors in any order than they way they are molded in the cable. The only > 'trick' is to be sure one connector is turned over so pin 2 at one end > connects to pin 2 at the other end, and so on. > > 73, Ron AC7AC > > -----Original Message----- > From: Clay Autery [mailto:caut...@montac.com] > Sent: Saturday, July 16, 2016 2:53 PM > To: Ron D'Eau Claire; elecraft@mailman.qth.net > Subject: Re: [Elecraft] [KPOD] Re: Now that the K-Pod is shipping, (longer > RJ12 cable) > > No problem Ron... So can someone tell me: > > Is the Elecraft cable that comes with the K-Pod a simple straight through > cable? > > What wire color or color/stripe conductor is on each pin? > > I dug through the schematics, et al last night and figured out what each is > named... Just wondering if any thought was given to which pins share paired > conductors, why, and if anyone considered the twist rate in choosing which > pair to use to carry a signal/voltage... > > Since only 5 of 6 conductors are used, one conductor has no paired mate... > > It's a thought experiment for now... > > But the REASON is to see if the standard cable is optimized as is for using > an EXTENDED cable... e.g. I want to figure out how long we can make the > cable before timing/sig degradation, etc becomes an issue... > > Also, I think I have seen at least one report where the cable construction > MIGHT have been the issue... > > "Roll your own" isn't as simple as one might think when the paired signals > are not differential "mates". > > > 73, > > ______________________ > Clay Autery, KY5G > MONTAC Enterprises > (318) 518-1389 > > On 7/16/2016 10:45 AM, Ron D'Eau Claire wrote: >> Clay. That's a typo. See appendix B of the manual. >> >> Tnx for the head's up. That's an old reference that should be been > removed. >> 73, Ron AC7AC >> >> -----Original Message----- >> From: Clay Autery [mailto:caut...@montac.com] >> Sent: Friday, July 15, 2016 8:35 PM >> To: Ron D'Eau Claire; elecraft@mailman.qth.net >> Subject: Re: [Elecraft] [KPOD] Re: Now that the K-Pod is shipping, >> (longer >> RJ12 cable) >> >> RR... I just cracked the K-pod manual and see that the cable is an >> RJ-25 cable... different pinouts from the RJ-12. (both 6P6C). >> >> I need the signals crossed with the pin numbers... or colors... >> >> No schematics for the K3s... I guess I'll try the K3 manual to see if >> it is at all illuminating... >> >> ______________________ >> Clay Autery, KY5G >> MONTAC Enterprises >> (318) 518-1389 >> >> On 7/15/2016 9:36 PM, Ron D'Eau Claire wrote: >>> Don is correct but, actually, the connector is a 6PC6 male. The "RJ" >>> numbers refer to the wiring AND connector. So it is NOT an RJ12 cable >>> since only 5 conductors are used. >>> >>> 73, Ron AC7AC >>> >>> >>> --- > ______________________________________________________________ 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 Message delivered to arch...@mail-archive.com
