Att Data Phone Jack Wiring Diagram

Att nid wiring diagram : 1 / a wiring diagram is a simplified Wiring att explain someone internet ‎can someone explain this wiring?

Att Nid Wiring Diagram : 1 / A wiring diagram is a simplified

Nid photographic representation conventional simplified

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Att Nid Wiring Diagram : 1 / A wiring diagram is a simplified

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‎Can someone explain this wiring? | AT&T Community Forums