Just for reference, 568-B is not exactly "compatible" with phone wiring color codes. 
568-A is.
As long as you are using patch panels and patch cords you will never know the 
difference though.

But if you take jacks that are wired 568-B, then punch them down on a 66 block for 
cross connecting, then the green and orange will be in reversed positions.  Since the 
KXT proprietary phones rely on the orange pair (3-6), this could cause confusion...
In other words, a 25 pair cable coming out of the ksu will use the blue and orange 
pair for the first extension.  If you connect that to a jack wired with 568-B, you 
will have to remember to connect the orange ksu pair to the green pair on the jack.

AT&T is the only phone manufacturer I know that liked to use 568b for all their jacks. 
Since their small ksu's were usually modular to modular, it didn't make too much 
difference... that is until you try to replace the system with a Panasonic, and now 
find that all the jacks won't work right.

As long as it works!
Charles

  ----- Original Message ----- 
  From: Tom Stewart 
  To: KXT Help List 
  Sent: Monday, September 29, 2003 11:48 AM
  Subject: KX-T: "improved?" panapatch


  As I said in an earlier email, I love the idea of the PanaPatch, but the price 
  was too much for me (home owner/hobbyist), so I wanted to share my experiences 
  with the group.

  I had wired my house quite some time ago with Cat5E cable, two runs per 
  outlet, and generally two outlets per room. The idea was one network port and 
  one phone port (and one cable tv) per box. Since it was compatible with 
  standard phone wiring and plugs, I wired both data and phone jacks with 568-B 
  wiring, straight thru. On the head end, the wiring terminates in a standard 24 
  port patch panel. So, for my situation, I bought another patch panel via ebay, 
  and wired up a 25 pair cable to it, in very much the same fashion as the 
  PanaPatch, except that I dediced to do something with the fourth pair. For 
  pins 1 and 8, I punched them down with one continuous pair (daisy-chained) 
  which is terminated in an RJ-11. This I can plug into one analog jack on the 
  front to provide one common "extension" to all jacks. In my case, I have 
  plugged it into the port that provides CallerID. In this way, I have callerID 
  available at every jack; I just have to wire up a funky line cord with an RJ-
  45 connected to two separate RJ-11's -- one of which connects pins 3-6 on the 
  RJ-45 to 1-4 on the RJ-11 for the standard connection, and another which 
  connects pins 1,8 on the RJ-45 to 2,3 on the second RJ-11. This can then get 
  plugged into a caller ID box for display.

  If I had to do it over, I *might* do the phone wiring as RJ-61 instead of T568-
  B, since currently the two outer pairs aren't twisted correctly for my 
  application. I'm hoping it doesn't matter...

  Anyway, just wanted to pass along the thought.

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