Panasonic KX-TDA30 Installation Manual page 130

2.9 Connection of Doorphones and Door Openers
Connection of Doorphones to DPH4 Card with RJ45 Connectors
1.
Connect DPH4 Card to the terminal boxes using telephone line cords.
Refer to "2.5.1 DPH4 Card" for pin assignments.
2.
Connect the wires of doorphones to the terminal box as shown below.
com1/com3
130 Installation Manual
NC
NC
DP1/DP3
(for DPH4 card with RJ45 connectors)
Terminal Box
NC
NC
DP2/DP4
com2/com4