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Re: Single Cat5 split for telephone and ethernet




>
> I am a bit  confused - all that I've read says that pins 7,8 are
> not used for either phone or ethernet.
> Here's one page on RJ14 and RJ45 wiring:
> http://www.tcswnc.com/RJ11%20and%20RJ45%20Connectors.htm
>
> It says ethernet is on pairs 2, 3  - wires (3,6) and (1,2).
> And a two-line phone (in a single RJ14 jack) would need
> Pair 1 and Pair 2 - wires (4,5) and (3,6).
>

I think we're saying almost the same thing - I'm numbering pairs by the wire
numbers though. If you say "pair 1" or "pair 3"  that could be different
pairs depending on the standard.
So you are right, ethernet is on pairs (3,6) and (1,2) - the orange and
green wire pairs. The blue and the brown pairs are unused.
It is easy to re-wire phone jacks and it is difficult to re-wire ethernet
plugs, so I would leave the ethernet on those org and grn pairs. Now you
have the other two pairs to do what you want.  In the first email only RJ11
jacks were mentioned, so I figure you might be separating the phone pairs to
separate jacks.
If you use an RJ14 for 2 line use, then use the brown pair for the second
phone line.

In other words, hook up the ethernet pairs (org and grn) to their jacks,
separate the other pairs  (blue and brown) and use them however you like.


> So, I don't see a way to avoid the 3,6 overlap in use
> for a two-line phone, and ethernet.
> As far as I can tell, pins 7,8 (pair 4) is designated
> Ring4, Tip4, which I am assuming means it is line 4
> in a 4-line phone configuration.
>
> Or am I misssing something?
>
> > Charls





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