Panasonic KX-TD500 System Reference Manual page 90

3) Wiring of the Doorphone
4-conductor wiring
is required.
Terminal Box 1
Doorphone 1 (KX-T30865)
YELLOW
4-conductor wiring
is required.
Terminal Box 2
Doorphone 3 (KX-T30865)
YELLOW
1. Connect the DPH Card to the terminal box using a 4-conductor modular connector.
2. Connect the wires of doorphone 1 to the red and green screws of the terminal box 1.
3. Connect the wires of doorphone 2 to the yellow and black screws of the terminal box 1.
4. Connect the wires of doorphone 3 to the red and green screws of the terminal box 2.
5. Connect the wires of doorphone 4 to the yellow and black screws of the terminal box 2.
Doorphone 2 (KX-T30865)
BLACK
RED GREEN
BLACK
GREEN
RED
Doorphone 4 (KX-T30865)
2-C-12
DPH Card
(KX-T96161)