Re: Phone wire central connection

["Dennis" <djr-google.djrlar@xxxxxxxx>]

Robert,

Thanks for the brief overview and the links.  They should be of great
help.

Dennis

Robert L Bass wrote:
> > I wasn't aware of "bridge clips".  Being unfamiliar with
> > the punch down blocks, my impression was of a series
> > of parallel strips with multiple wire punch down points on
> > each strip.  I obviously need to get better informed as to
> > exactly what they are, and can do, before making a
> > decision.
>
> Punch blocks come in several flavors.  66 blocks (primarily used for telephone
> rather than data) can be had with 50 rows (ie, 25 pairs).  The rows consist
> either of 6 pins, all connected, 1 free pin next to 5 connected pins or two
> groups of 4 pins.  The so-called split blocks use bridging clips, which are
> simple metal spring clips to connect them together.
>
> Most of the time data blocks are of the 110 variety.  These are more densely
> packed than the 66 to maintain CAT5 or greater standards.  Conventional 66
> blocks are typically rated for CAT3 (telco stuff).
>
> All of these devices require a punch tool to make the connections and cut off
> excess wire.  There are different heads for punching 66 and 110 type blocks.
> Also, the heads are usually reversible.  One side punches down and cuts the
> excess whereas the other side punches down the wire but leaves the free end
> connected.  This is usually used for multiplying telco connections to more than
> one row.
>
> The following link takes you to a page that discusses 66 and 110 blocks at
> length.  There are lots of close-up photos and explanations of several different
> wiring schemes.
>
> http://www.homephonewiring.com/blocks.html
>
> Here are tutorials in PDF from Leviton, one of the larger manufacturers of 66
> and 110 blocks, as well as lots of other cool stuff.
>
> http://www.levitonvoicedata.com/support/documents/applicationnotes/W220%20_110%20Termination.pdf
> http://www.siemon.com/int/download/installation_instructions/us/66_S66M1-50_ii.pdf
>
> Hope this helps.
>
> --
>
> Regards,
> Robert L Bass
>
> Bass Burglar Alarms
> The Online DIY Store
> http://www.BassBurglarAlarms.com
>
> --
>
> Never underestimate the power of very stupid people in large groups.