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Re: Need 66-block help. 1 POTS line, 8 jacks



On Wed, 11 Jun 2008 14:45:18 -0400, Lewis Gardner
<lgardner@xxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:

>Jack wrote:
>
>>>>1. aa bb
>>>>2. cc dd
>>>>3. ee ff
>>>>4. gg hh
>>>>5. ii jj
>>>>6. kk ll
>>>>7. mm nn
>>>>8. oo pp
>
>
>> First of all, what is the difference between white/blue and
>> blue/white, etc?
>
>The below is from nps-vip.net/tester/colors.htm it explains the color
>coding better than I can.
>
>"If you look at the top 2 wires closely you will notice that one wire is
>mostly white with a regular band of blue. This is the Tip. The second
>wire is mostly blue with an regular band of white. This is the ring. Ok
>so the bands are kind of hard to see. But when seen in longer lengths
>and twisted, you can make out the colors easier. The wires are twisted
>to prevent the signal on one pair of wires from "leaking" into the others."
>
>
>> Secondly, you said "The order for the first cable
>> will be...white/blue to bb". In my representation above, "bb"
>> represents 2 places to punch down. Are you saying punch the same wire
>> in 2 places?
>
>Sorry I was not more clear. Since you will be using bridging clips you
>will only be punching wires on the outside positions. The inside
>positions are where the clips go. See en.wikipedia.org/wiki/66_block
>
>On the left side you will flip your punchdown tool to the non-cut side
>and loop the incoming line to all the leftmost positions matching the
>blue pair. Complete the circuit with clips.
>
>
>> Thirdly, if the incoming lines loop from aa to mm and
>> from cc to oo, it seems a waste of time to punch down the jack lines
>> in between. There's nothing to bridge them to.
>
>Like I said in the last post "The idea behind wiring blocks is to
>provide a permanent termination for installed wiring." Just because you
>are not using the other two pairs now that does not mean that they will
>never be used. The practice is to terminate all installed wiring to the
>block.
>
>
>> Lastly, if what you say is correct,
>> then my 50-pair 66 block can only support 8 jacks?
>
>Yes with 3 pair 8*3=24. I usually use 4 pair so 6 jacks per 66 or since
>I usually use 110 that gives me 20 jacks per block. 5 pair is quite
>common so that gives 5 per 66.

Thank you very much! It makes alot more sense now. I will try it
tonight when I get home.
-Jack


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