Panasonic KX-TD816 Installation Manual page 88

2.4.4 Installing Expansion Unit
(KX-TD170 / KX-TD180)
3. Hook the cabinet on the main unit and
slide the cabinet to the left until it is
fixed.
4. Loosen the outside screw and slide the
cover to the right.
2-56 Installation
Outside screw
5. Connect the frame of the expansion unit
to ground. Secure the inside screw firmly
to fix the cabinet to the main unit.
Note If two or three expansion units are
installed, frame ground connection is
required for only one unit.
To ground