Panasonic KX-TD816 Installation Manual page 110

2.4 Installation of Optional Cards and Unit
Maximum cabling distance of the doorphone and the door opener line
The maximum length of the doorphone and door opener line that connects to the main unit is
shown below:
Note
The KX-TD1232 is illustrated as the main unit.
Programming Guide References
[607-608] Doorphone Ringing Assignment – Day / Night
Features Guide References
Door Opener
Doorphone Call
110
26 AWG: Under 70 m
24 AWG: Under 113 m
22 AWG: Under 180 m
22 AWG: Under 180 m
Doorphone
KX-T30865
Door Opener
General Installation