Cat3 and POTS

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480sparky

Senior Member
Location
Iowegia
telcocat5colors.jpg
 

celtic

Senior Member
Location
NJ
Red = Tip = White/Blue
Green = Ring = Blue White

...and so on, correct?
[I'm not sure on the T & R]


BTW, I didn't know Bedrock had phone service :)
 

LarryFine

Master Electrician Electric Contractor Richmond VA
Location
Henrico County, VA
Occupation
Electrical Contractor
Red = Tip = White/Blue
Green = Ring = Blue White

...and so on, correct?
[I'm not sure on the T & R]


BTW, I didn't know Bedrock had phone service :)
Yabba dabba doo!

Actually, the red = the solid blue.

As for tip and ring, do you know where that comes from? Phone operator switchboards used plugs very similar to the modern 1/4" stereo headphone plug.

If you look at such a plug, you'll see that the plug's contacts are the tip (L ch), the ring (R ch), and the sleeve (com.) A mono plug has no ring terminal.
 

celtic

Senior Member
Location
NJ
As for tip and ring, do you know where that comes from? Phone operator switchboards used plugs very similar to the modern 1/4" stereo headphone plug.

If you look at such a plug, you'll see that the plug's contacts are the tip (L ch), the ring (R ch), and the sleeve (com.) A mono plug has no ring terminal.


Very interesting!

I had no idea how Tip/Ring was determined/decided upon ~ thank you.
 

tom baker

First Chief Moderator
Staff member
Hers is how I remember it.
Red Right Ring.
On drop wire, the ring is identified with a tracer or rib
But I don't think polarity matters unless its a party line which rings to ground.
 
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