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| Author |
Message |
ball
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Telephone Wiring
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Feb 24 08:32 UTC 2006 |
An Item for the discussion of telephones and telephone
wiring...
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| 17 responses total. |
ball
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response 1 of 17:
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Feb 24 08:39 UTC 2006 |
USOC / RJ25 Pinout
,-123456-, Pin Colours Signal
| | ~~~ ~~~~~~~~~~~~~ ~~~~~~~~~~~
`-, ,-' 1 White/Green Line 3 Tip
`-,,-' 2 White/Orange Line 2 Tip
3 Blue Line 1 Ring
(looking 4 White/Blue Line 1 Tip
into wall 5 Orange Line 2 Ring
jack). 6 Green Line 3 Ring
RJ14 wiring is the same, but only lines 1 and 2
are present. RJ11 only has line 1. Tip floats
near ground potential. Ring is negative with
regard to the Tip.
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ball
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response 2 of 17:
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Feb 24 08:46 UTC 2006 |
25 Pair Colours (U.S.)
Pair Tip Ring
~~~~ ~~~~~~ ~~~~~~
1 White Blue
2 White Orange
3 White Green
4 White Brown
5 White Slate
6 Red Blue
7 Red Orange
8 Red Green
9 Red Brown
10 Red Slate
11 Black Blue
12 Black Orange
13 Black Green
14 Black Brown
15 Black Slate
16 Yellow Blue
17 Yellow Orange
18 Yellow Green
19 Yellow Brown
20 Yellow Slate
21 Violet Blue
22 Violet Orange
23 Violet Green
24 Violet Brown
25 Violet Slate
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ball
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response 3 of 17:
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Feb 24 08:51 UTC 2006 |
Now that's done, does anyone happen to know whether I'm
likely to find exterior-grade two-pair cable at Lowes, Home
Depot or perhaps Menards? If not, I may have to find a
friendly electrician who can pick some up from their
distributor. I'm not that familiar with N. American cable
manufacturers. Are there brands that I should avoid?
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ball
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response 4 of 17:
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Feb 27 01:28 UTC 2006 |
I bought some cable at Ace Hardware. They had four-core, but
it was not twisted pair so I had to buy three-pair (six-
core) cable instead.
Today I looked for a convenient place to drill a hole for
the cable. I didn't find one. Our apartment is the top
floor of an old house which, along with plenty of character,
has very thick walls and inconvenient windows. Tomorrow I
may call the nice people at Illinois Bell to ask whether
they will be kind enough to install (hopefully at no cost)
the cable run and a wall jack.
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rcurl
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response 5 of 17:
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Feb 27 02:57 UTC 2006 |
It's pretty common to run telephone wire along baseboards. Depending on the
baseboard you might add a molding on top of the baseboard and run the wire
behind that to hid it. In any house it is hard to go horizontally. I've only
run telephone/data cables down and up via the basement, where I can put the
horizontal runs.
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gull
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response 6 of 17:
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Feb 27 06:11 UTC 2006 |
If you're doing it yourself, pull extra cable. It doesn't take much
more time and it may come in handy later. At work my rule of thumb is
to always pull at least one more line than I think I'll need, whether
it's video cable or CAT5.
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ball
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response 7 of 17:
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Feb 28 08:59 UTC 2006 |
Re #5: Routing the cable indoors is not a problem. Getting
the cable indoors from the network interface box outside
is a significant problem because of the old, thick, brick
walls. I started this project because I could benefit
from DSL. This cabling problem may be a show-stopper
though.
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rcurl
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response 8 of 17:
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Feb 28 20:17 UTC 2006 |
Just drill a hole. Brick is pretty easy to drill.
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ball
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response 9 of 17:
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Mar 1 03:14 UTC 2006 |
It's thick, way thicker than any drills I have could cope
with. I have no idea what else is in that wall and besides,
it's not mine.
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ball
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response 10 of 17:
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Mar 1 03:27 UTC 2006 |
Illinois Bell are sending a man out in the morning to have a
look at the old jack and wiring. I don't pay for the call-
out, which is good because I'm not confident that he will be
able to replace the old wiring (some of it's buried in the
wall, some is above the ceiling, some is very, very high on
an outside wall). If he can, they'll likely want to charge
me a lot of money. It would be much more sensible to install
a new jack and a short, accessible drop of cable to the NID,
but that incurs a line installation fee. I think I'd rather
spend the money on a drill and take my chances.
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rcurl
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response 11 of 17:
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Mar 1 03:40 UTC 2006 |
A 1/4-inch one-foot long drill for brick is available (since other people
have the same need). A 1/4-inch hold is hardly noticeable an easily
plugged later. Is the brick a facing or is it structural? The latter about
twice as thick (and now only found in old buildings).
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ball
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response 12 of 17:
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Mar 1 16:46 UTC 2006 |
It's structural. The nice chap from Illinois Bell came
suitably equipped and was kind enough to install a jack and
drop a new line. Next stop DSL! :-)
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ball
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response 13 of 17:
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Oct 4 02:08 UTC 2006 |
My DSL service was turned on 2006-10-01.
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ball
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response 14 of 17:
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Oct 24 17:48 UTC 2020 |
Fourteen years later (in a different house), I find
myself thinking it would be nice to have an ordinary
telephone line in the study. Sadly, line rental and basic
service costs about as much as broadband Internet, so I'll
probably have to go for an IP phone instead.
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tod
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response 15 of 17:
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Nov 24 02:55 UTC 2020 |
I have an analog naval ship phone in the garage with a converter to IP.
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papa
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response 16 of 17:
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Nov 24 22:51 UTC 2020 |
You can pretend your telephoning from the Battlestar Galactica.
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tod
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response 17 of 17:
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Jun 17 01:00 UTC 2021 |
re #16
It's not a TA-954 but rather a rotary.
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