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Help on a 66 Block

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Peach

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Dec 19, 2000, 3:50:09 PM12/19/00
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Although I have always found a way to tap an incoming line before the 66
block (for an alarm system, naturally), can someone lead me to an
illustration showing exactly how a 66 block works?

It seems quite simple, but after ALL (bunches) of the reverse polarity lines
I have found (supposed to be wired by certified bell folks) I am afraid to
trust a 66 block!

A have a Levuton booklet that shows the coloring code for it, but I just
need a little more info (Where does the first line come in, where does it
come out on the other side, what if more then one phone is connected to that
line, can you wire them with out a push down tool....etc.


Thanks
Joe
Preferred Security Systems


Robert L Bass

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Dec 19, 2000, 4:16:36 PM12/19/00
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Hi Joe,

Here's a link to Mark Henrich's Home Pre-Wire Guide. Click in his index on
"Finishing the Installation" and then on "Telephone Hub" for a general
discussion on 66 blocks. Mark has done an excellent job with this online
guide.

I have a lot more links on the subject in my FAQ at
http://www.bass-home.com, not to mention lots of products. Feel free to
give me a call if you need help.

Regards,
Robert L Bass

=============================>
Bass Home Electronics
The Online DIY Alarm Store
http://www.Bass-Home.com
4883 Fallcrest Circle
Sarasota, FL 34233
877-722-8900 Sales & Tech Support
941-925-9747 voice (Florida)
941-923-6238 fax
Rober...@home.com
=============================>

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Peach

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Dec 19, 2000, 6:20:39 PM12/19/00
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Mr. Bass,

Thanks for your timely and informative information, however I can't find the
link to Mark's Site! Did you forget to include it or am I faulty at my end?

As always, Thanks

Joe


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Robert L Bass

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Dec 19, 2000, 10:48:17 PM12/19/00
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Oops, sorry. Here's the link:

http://www.wildtracks.cihost.com/homewire/WireGuideFull.pdf

Regards,
Robert L Bass

=============================>
Bass Home Electronics
The Online DIY Alarm Store
http://www.Bass-Home.com
4883 Fallcrest Circle
Sarasota, FL 34233
877-722-8900 Sales & Tech Support
941-925-9747 voice (Florida)
941-923-6238 fax
Rober...@home.com
=============================>

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Holger

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Dec 20, 2000, 8:32:19 AM12/20/00
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Punch down blocks are nothing more than a good way to connect two wires
together. Split 66's are just that, split down the middle. Only the left two
pins are common, and the right two. That's what jumper clips are for:
shorting out all four pins in a row by placing them on the center two. This
provides you a way of temporarily opening a pair of wires without having to
re-punch them.

Straight 66's, usually have six pins across and are all common. These are
great for adding multiple phones to a single line. They come in short
versions for out type of work or for a residence (they usually have less
than six lines). Your distributor should carry these and you should keep at
least a couple on hand (with your own punch down tool too!).

Watch out what any book tells you! Most fellas, including our favorite
people at Ma Bell, don't follow it. I have found that they usually do their
own thing when it comes to running/punching wires.

But even so, generally speaking, I have found that most folks wire the
incoming lines on the left, and the stations (or whatever) on the right. But
I never take anything for granted. I follow everything until I know where
it's going and where it came from.

Also be aware that if you see a 66 punch down block, that there is likely a
KSU for a phone system there. Ask the customer, then look. Some people don't
even know what that is or even if they are on a phone "system."

When I have the luck to come across a 66 block, it really makes the job
easier. I usually take one side off, re-route it to an unused pair of clips
and bridge in my RJ31 X. It's the professional way to do it rather than the
"B" connectors or even the 3M ones, if you have them (and you should!).

Just never take anything for granted. Talk to the customer and verify what
they say. I've hunted down wires from one block to another in office
buildings that serve numerous businesses. If you don't have a line tracer
and inductive probe, you need one today.

<H>

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