Panasonic KX-NCP500 Installation Manual page 89

3.8.1 Maximum Cabling Distances of the Extension Wiring (Twisted Cable)
PT-interface DSS
DPT APT SLT
CS Console
DLC16, DLC8 Cards
ü ü ü
"ü" indicates that the extension card supports the terminal.
Document Version 2011-10 Installation Manual 89