2 Line Phone Adapter Wiring Diagram. The phone line usually comes in by your electrical panel. Most cable nowadays is UTP unshielded twisted pair.
Business-style two-line phones have cords with four wires and if you have two phone lines going to one jack the 2nd line uses the Halloween pair which is the two outer wires. The above wiring diagram shows which lines from the Cat5e patch cable will be used for each phone line. To connect line two to the bottom jack connect the black wire on the screw terminal marked for green and the yellow wire on the screw terminal marked for red.
Business-style two-line phones have cords with four wires and if you have two phone lines going to one jack the 2nd line uses the Halloween pair which is the two outer wires.
For this specific project the phone lines running into the building are wired to 2 separate RJ45 connectors that use pins 4 5. You should disconnect the main phone line from the source before continuing wiring a phone jack. ALWAYS provide at least 50mm clearance between telephone and 230V wiring. How to Wire a Phone Jack Voice or Telephone RJ-11 thru RJ-14 USOC Wiring Diagram Telephone wiring for a phone outlet is typically either 1 2 or 3 pairs 2 4 or 6 conductor.
