Panasonic KX-TDA50 Installation Manual page 118

2.8 Connection of Doorphones, Door Openers, External Sensors, and External Relays
Connection of Doorphones
1.
Connect DPH4 Card to the terminal boxes using telephone line cords.
Refer to "2.5.1 DPH4 Card (KX-TDA5161)" for pin assignments.
2.
Connect the wires of doorphones 1 and 3 to the red and green screws on the terminal box.
3.
Connect the wires of doorphones 2 and 4 to the yellow and black screws on the terminal box.
To DPH4 card
118 Installation Manual
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Yellow
Red
Doorphone 3
Yellow
Red
Doorphone 1
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Telephone Line Cord
Terminal Box
Black
Green
Doorphone 4
Telephone Line Cord
Black
Green
Doorphone 2