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- Some Techno-info for phone cabling,
- Most new business phones are currently being wired with "4 pair" cable.
- this has been going on for quit some time. here are the color codes
- and some of the common uses of these wires.
-
-
- Color codes.
- -------------
-
- The cable is Usually grey.
-
- The 4 pairs of wire inside have 4 colors: blue, orange, green and brown.
-
- "4 pairs" of wire means "8" wires. (no shit)
-
- Each pair is twisted together. thus 4 twisted pair. (no shit, no shit)
-
- The "blue" pair consists of a blue/white wire and a white/blue wire.
- this means:
- the blue\white wire in the pair is mostly blue
- with a white mark here and there. the white/blue wire is mostly
- white with a blue mark here and there.
- this goes for the other three colors also.
-
- thus so far:
-
- 1 cable = 4 pairs = 8 wires
-
- 1 blue 1 white/blue
- 1 grey 2 blue/white
- (or blue or clear)
- 2 orange 3 white/orange
- 4 orange/white
-
- 3 green 5 white/green
- 6 green/white
-
- 4 brown 7 white/brown
- 8 brown/white
-
- * It is "standard" to refer to these wires in the above order.
-
-
-
-
-
- * the dominant white of each pair is like a ground to the dominant color.
- Think of them as four different speaker wires in one cable.
-
- Are we getting any where yet?
-
- *Note
- --------
- You should not play with these wires in "Your" place business. In some
- phone systems you can Burn-Out the KSU if you touch/short the Pair.
- (Now-a-days the system is usually protected from this.)
- hmm... your boss will get shorted(temper) and you will get burnt!
-
-
- Uses
- --------------------------------------
- Some background:
- In most cases these wires lead to a "KSU". It is like a phone server
- that lets many phones share a few "Bell" lines. The phone uses the
- white/blue pair, and sometimes also the white/orange pair (meaning both
- pairs simutainiously).
-
- Sometimes there is more than one "item" on a cable
- ------------------------------------------------
- In some cases a phone might get hooked up to the white/blue pair; and
- a MODEM! or Fax to the white/orange OR white/green pair.
- If there is a modem/fax line, It does not go thru the KSU. It goes
- directly to a "Bell" dial tone. isn't this fun? ;)
-
-
- Free long distance?
- -------------------
- In some really old buildings, Its been heard that a phone man will take a
- wire out side of the building to get a line "down stairs and five rooms over."
- Or they may run a line to the biulding next door. My cable tv guy ran my
- cable out near the basement window and up to my 2nd floor.(dick-head!)
-
- (get your laptop and modem ready, next we'll make a "jumper".)
-
- A quick lesson on 25 pair cable
- -------------------------------
- 25 pair? holy shit, thats 50 wires!
- Yep, the cable is about 5/8 of an inch round. It uses the same scam, I
- mean scheeeem, as the 4 pair.(but different)
-
- Main rule: "Like" pairs.
-
- blue orange green brown and slate(gray).
-
- white Wht/Blu wht/orng
- Blu/wht orng/wht ( a l l l i k e b e f o r e )
-
- yellow ylw/blu ylw/orng ylw/grn ylw/brn
- blu/ylw orng/ylw grn/ylw brn/ylw
-
- black blk/blu
- blu/blk
-
- violet ( y o u f i l l i n t h e r e s t )
-
-
- red red/blu red/ylw
- blu/red ylw/red
-
-
-
- What else about 25 pair?
- ------------------------
- It is usually used in pairs. If you were looking for Dial Tone you would
- First check the wht/blu pair. and work your way down all the pairs with
- white, Then check all the pairs with yellow, and so on.
-
- *Note
- ---------------
- UnAuthorized "Pair Checking" may be viewed by your piers as UnEthical. :)
- -What does that statement really mean?..... Don't get caught!
-
-
-
- hmm.... one other cable. (usually in homes)
- -----------------------
- cable => 4 wires
-
- grey 1 green
- or tan 2 red
- or black
- 3 black
- 4 yellow
-
-
-
- The phone jack (and cable)
- --------------
- "cable" to "jack" | "cable" to "jack"
- ---------------------------|---------------------------------
- at home: green to green | and red to red
- |
- at business: wht/blu to green | and blu/wht to red
- wht/orng to blk | orng/wht to ylw
-
- Well, I've had Enough for one Day.
-
- This was writen Just so I could download more stuff.
- (from The Temple Of The Screaming Electron BBS )
- 1-510-935-5845
-
- I am not associated with "TOTSE" BBS. hell... I don't even know those guys.
- ______________________
- | |
- | This was writen by: |
- | Dick Sacke |
- |______________________|____________________
- | |
- | and can be contacted by Internet: |
- | (not for Official Use) |
- | |
- | To: ken.wood@boothill.com |
- | Subject: to Dick Sacke |
- |__________________________________________|
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