Chuck, Sorry, I thought I sent this to the list
Those of us that "grew up" with At&t/Lucent/Avaya do the "conversion" in our head, without even thinking about it.
When replacing a Merlin with any "two pair" system,
we just punch the first pair to the first pair and the second pair to the third pair without even thinking about it
There is no real good reason to use 568 A for anything unless you are dealing with the Federal Government.
Don Ritchie - System Engineer Century Communications 460 East 270 Street Euclid, OH 44132-1708 216-731-3030 [EMAIL PROTECTED]
Charles Patterson wrote:
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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