Panasonic KX-T336 System Reference Manual page 128

Maximum Cabling Distance of the T-1 Line
Note :
The T-1 line cable must be 22 AWG shielded twisted pair cable or 24 AWG UTP
(unshielded twisted pair) cable supported Category 5.
Cable Pin Numbers to be connected for KX-T96187
KX-T96187 Channel Service Unit (CSU)
KX-T96187
on KX-T96187
2-C-28-10
(70695)
KX-T96187
8 Pin Modular Jack
on KX-T96187
Modular Jack
from the Central
Office (CO)
Other
KX-T96187