I didn't take issue with your choice, just the REASON for the choice. I
disagree that the connector is hard to makeup, That's all.

The RJ11 (or RJ12 jack) IS bulky. But it is reliable and easy to obtain,
that's all I was saying. The crimper is $13, whereas my Berg MiniPV pinning
cost (my standard 0.1" pin) more than my work car did (costs $900 new).

If you are trying to hit the hobbyist, I guess use 0.1" header pins and the
Tyco MTA connector.

--Bob

At 08:32 PM 8/18/2003 -0500, you wrote:
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>Bob,
>
>I went back and looked.  Glad I could add a totally new perspective.
>
>I had bought a grey PCB mount RJ-45 at Radio Shack a couple of years
>ago.  I dug it out, and I am holding it now.  It matches pretty closely to
>the drawing at http://www.mouser.com/catalog/specsheets/0415125.pdf except
>that it is keyed.  With the change to RJ11-6 (or RJ12-6) this is what I
>think the thread is recommending to use on the target PCB.
>
>I think that this is not very friendly to a hobbyist because the
>pins don't fit into a solderless breadboard, as they are not on 0.100"
>centers.  I think that its important not to orphan the breadboard, or we
>loose a lot of prospective colleagues.
>
>I also had trouble keeping all the wires aligned before the crimping over
>on the plug side.  I don't know if this gets better with practice or not.
>
>I also have the Dallas digital thermometer prototype kit, and it has the
>device mounted on little boards whose only purpose is to hold a pair of
>RJ11 jacks.
>
>I like the idea of the Olimex dongle, and the Olimex target boards because
>they do use 0.100" headers (sockets) and in principle I can use them on the
>breadboards.  However, I also suspect that Microchip's products are a bit
>definitive.
>
>I also looked in Mouser.  I do see several RJ11-6-4 parts, but no RJ11-6-6
>parts.  There are several RJ12-6-6 parts.
>
>So would the Mouser part 154-7623PCB (DGS) be in line with the developing
>recommendation?  Would you use one on both the target and the ICD, and use
>a straight through cable?
>
>Bob Axtell wrote:
>
> >571-5551651       $0.53 AMP Modular Jacks
> >571-5551631       $0.60 AMP Modular Jacks
> >I am not drawn to the RJ connector, because of difficulty making cables.
><snip>
>
>Gosh, Aubrey, I've NEVER heard that before in my life. RJ11-6 cables can be
>purchased in ANY Radio Shack/Best Buy/Walgreens. A crimper can be bought
>NEW on Ebay BuyIT for $13. The wire is stranded #24. In the USA, its got to
>be the most prevalent jack/connector there is. Telco requirements means
>that both the jack and connector contact surfaces are GOLD.
>
>And if you buy the RJ11 PCB Jack from surplus, you can get it for $0.15 a
>jack.
>Microchip picked it for a GOOD reason for both ICD1 and ICD2.
>
>Am I missing something? <g>
>
>- --Bob
>
>
>
>- ---
>Aubrey  McIntosh
>http://www.piclist.com/member/AM-vima-Y84
>PIC/PICList FAQ: http://www.piclist.com
>
>
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>--
>http://www.piclist.com#nomail Going offline? Don't AutoReply us!
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--------------
Bob Axtell
PIC Hardware & Firmware Dev
Tucson, AZ
1-512-219-2363

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