On Thu, 28 Mar 2002 21:36:28 -0600 Jeff Walther <[EMAIL PROTECTED]> wrote:
> The greatest difficulty is to get multiple phone extensions. If you
> have your phone line come in and terminate at a patch panel, it is
> simple enough to plug a patch cable into the phone line jack, and the
> other end of the patch cable into the jack that leads to the single
> extension that you want out in the house. But if you want multiple
> extensions, you must rig up something else.
ah, that's what i use 66 blocks for.
there are a couple of types of 66 block; the two most common ones do this
fan out thing beautifully.
a typical telco type 66 block is 10" tall and 2" wide (so are the standard
110 blocks, they are designed to snap into the same mounts.) mounted
vertically, they have 50 rows of metal fingers (amazingly enough,
corresponding to 25 pair twisted pair cable, commonly used by the same
telcos.) in the most common variant, all 4 fingers in each row are tied
together, so if you punch 4 wires into all 4 fingers, they're connected.
the second most common variant has 2 and 2 connectivity, the left pair and
the right pair are separate circuits. you can use metal bridging clips to
tie them together if you like.
the way to use them to fan out phone lines is this:
figure out how much fan out you want. i fanned my inbound line to 8 jacks.
this will require 16 rows, 8 jacks times 2 wires (phone jacks have 4
wires, but it's been a long time since all 4 were actually used.) you snake
wires through alternating rows in the internal pairs of fingers, punching
them into alternating rows. bring in the incoming phone line from the left
(or right) side, and punch the 8 fan out wires into the right (or left)
side.
note that both 110 and 66 punch down blades are double ended. the ends are
_different_. the difference is important. one end has a cutter, the other
end does not. if you are punching a wire through multiple fingers, you use
the cutterless end. when you need to cut, you flip the blade, and make sure
you put the cutter on the correct side (it really sucks to accidently
cut on the wrong side. it _really_ sucks.)
i'm sorely tempted to get out the digital camera and post some pictures; it
will all make more sense when you see what i'm describing.
i alluded to the local telcos not using 66 blocks anymore; this is correct,
but it doesn't mean you can't get them. vendors do still make them, and
they can be gotten from outfits like Graybar, or can be gotten as salvage
when offices are rennovated.
richard
--
Richard Welty [EMAIL PROTECTED]
Averill Park Networking 518-573-7592
Unix, Linux, IP Network Engineering, Security
--
SuperMacs is sponsored by <http://lowendmac.com/> and...
Small Dog Electronics http://www.smalldog.com | Refurbished Drives |
Service & Replacement Parts [EMAIL PROTECTED] | & CDRWs on Sale! |
PowerON Computer Services <http://www.poweron.com> REPLACEMENT PARTS in STOCK
Drives, CD-ROMs, RAM, Processors, Power Supply <mailto:[EMAIL PROTECTED]>
Support Low End Mac <http://lowendmac.com/lists/support.html>
SuperMacs list info: <http://lowendmac.com/supermacs/list.shtml>
Send list messages to: <mailto:[EMAIL PROTECTED]>
To unsubscribe, email: <mailto:[EMAIL PROTECTED]>
For digest mode, email: <mailto:[EMAIL PROTECTED]>
Subscription questions: <mailto:[EMAIL PROTECTED]>
Archive: <http://www.mail-archive.com/supermacs%40mail.maclaunch.com/>
Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
