Panasonic KX-TG2480S Operating Instructions Manual page 13

Connecting 2 single-line telephone jacks
Example: DSL line is LINE 2
TRANSPARENT
plug
1 2-wire telephone line cord with TRANSPARENT plugs
2 4-wire telephone line cord with GREEN plugs
For assistance, please visit http://www.panasonic.com/consumersupport
GREEN
plug
To single-line
telephone jacks (RJ11C)
2
1
Preparation
LINE 2
Noise filter
(For DSL users)
LINE 1
13