Panasonic KX-TD500 System Reference Manual page 172

6.00 Installation of the KX-A207
1. Secure the protector to a building with the enclosed
mounting screws.
2. Remove about 1 cm (13/32 inch) of insulation from
the end of the earth wire. Insert the earth wire
through the bottom of the protector base and
secure it to the earth terminal.
3. Remove about 1.5 cm (19/32 inch) of insulation
from the ends of the external and internal cables,
then pass the cables through the rubber packing.
4. Fold the external and internal cables, and connect
them to the terminal screws using washers.
5. Secure the external and internal cables and the
earth wire to the building. Then, install the arrester
and mount the cover on the protector.
2-G-4