Lenovo ThinkCentre M91 - Manual (Page 10)

Example of antenna grounding
1
Ground clamp
5 Power service grounding
electrode system (NEC Article
250, Part H)
2
Antenna lead-in wire
6
Ground clamps
3
Antenna discharge unit (NEC
Section 810-20)
7
Electronic service equipment
4
Grounding conductors (NEC
Section 810-21)
Figure 1. Proper grounding for the cable
The following notice applies to all countries and regions:
6
ThinkCentre Safety and Warranty Guide