How do I identify my telephone wiring. Pacbell FAQ

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All FAQs » Pacbell FAQ » 4. Troubleshooting » 1572


How do I identify my telephone wiring. (#1572)
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 show feedback form


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