Panasonic KX-TD816 Installation Manual page 79

2.4.4 Installing Expansion Unit
(KX-TD170 / KX-TDl80)
5. Connect the frame of the expansion unit
to ground. Secure the inside screw firmly
to fui the cabinet to the main unit.
Note
If two or three expansion units are
installed, frame ground connection is
required for only one unit.
6.
n
If KX-TD180 is to be installed; (for KX-TD1232)
Insert the modular plugs of the telephone line cords (4-conductor wiring) into the modular
jacks on the unit.
Jack for Power
Failure Transfer t
View oFTEL Jack iC0)
II
To Terminal Board or Modular
Jacks from the Central Office
j- For details. refer to Section 2.5 "Auxiliary Connection for Power Failure Transfer."
Installation
2-45