15Installation of Optional Card and UnitDoorphone (KX-T30865) Connection2-conductor wiring cordKX-T30865Notes• The doorphone adaptor is not required for KX-T206.• To avoid howling, you must assign all extensions as “DISABLE” in the “#06/#76 DoorphoneAssignment (Day/Night)” program when you do not connect a doorphone.• If howling occurs while using the doorphone feature, check the wiring.• You can use cable holders to fix the wires.Door Opener ConnectionA user-supplied door opener can be connected to the system.GROUNDEXTN.5EXTN.3EXTN.1CO 2CO 1EXTN.6EXTN.4EXTN.2DPHDOOROPENERSYSTEM3. Wind and fix the cables of the door openerround the upper cable holder.1. Loosen the screws. 2. Insert the wires coming from the dooropener into holes and tighten the screws.DOOROPENERNotes• For wiring, it is recommended to use UL1015 twisted wire or the equivalent.• The wire should be between 1.2 and 2.4 mm in diameter including the coating.GROUNDSYSTEMEXTN.5EXTN.3EXTN.1CO 2CO 1EXTN.6EXTN.4EXTN.2DPHBAPanasonicPanasonicDPHDOOROPENERD=1.2–2.4 mmGROUNDEXTN.5EXTN.3EXTN.1CO 2CO 1EXTN.6EXTN.4EXTN.2DPHDOOROPENERSYSTEMTo the door opener• Set the door opener paired with the doorphone.