Panasonic KX-TDA600 - Hybrid IP PBX Control Unit Max. 1008 Ports Installation Manual page 117

1.
Connect the grounding rod to the surge protector using a grounding wire with a cross-sectional area of
at least 1.3 mm 2 .
2.
Bury the grounding rod near the protector. The grounding wire should be as short as possible.
3.
The grounding wire should run straight to the grounding rod. Do not run the wire around other objects.
4.
Bury the grounding rod at least 50 cm (20 in) underground.
Notes
• The above figures are recommendations only.
• The length of grounding rod and the required depth depend on the composition of the soil.
2.2 Installation of the Hybrid IP-PBX
Installation Manual 117