User's Manual

3 Installation
ID No: 161692 PRELIMINARY Page 21
3.2.2 Grounding
Grounding the Node C and Interface Unit is mandatory. Connect an earth bonding
cable to the grounding connections provided at the cabinets of both the Node C and
Interface Unit according to the following illustrations.
Do not use the grounding connections to connect external devices.
figure 3-8 Grounding bolts
figure 3-9 Grounding a system
The PE cables must have a minimum cross section of 10mm
2
.
Node C cabinet
Cabinet of
Interface Unit
Cable bridge connectors