dslreports logo
site
spacer

spacer
 
    All FAQs Site FAQ DSL FAQ Cable Tech About DSL Distance DSL Hurdles »»
spc

spacer




how-to block ads



The name for the 2 wires in a telephone circuit (Tip and Ring) are derived from old style phone jacks. The Tip is at 0 Volts DC and the Ring is at -48 VDC. Typical residential wiring pairs are:

Green Tip---Red Ring
Black Tip---Yellow Ring
White Tip---Blue Ring

RJ11 pin pairs are:

3 Tip---4 Ring
5 Tip---2 Ring
1 Tip---6 Ring

Expand got feedback?

by Coot5 See Profile edited by Ryokincaid See Profile