Lenovo M5800 Desktop Bedienungsanleitung PDF herunterladen (Seite 14)

Safety, Warranty, and Setup Guide

Products with television tuner options installed

The notice below applies to products containing television (TV) tuner devices that

connect to external antennas or to cable/CATV systems, or both, and that are

intended to be installed in North America. Users and installers in other countries

should follow local codes and ordinances when installing appliances that connect

to external antennas and cable/CATV systems. If local codes are not applicable, it

is recommended that users/installers follow guidelines similar to those that follow.

Note to CATV system installer

This reminder is provided to call the CATV system installer’s attention to Article

820-40 of the National Electrical Code (NEC) that provides guidelines for proper

grounding and, in particular, speciﬁes that the cable ground shall be connected

to the grounding system of the building, as close as possible to the point of cable

entry as practical.

Example of antenna grounding

Figure 3. Proper grounding for the cable

Ground clamp

Antenna lead-in wire

Antenna discharge unit (NEC Section 810-20)

Grounding conductors (NEC Section 810-21)

Power service grounding electrode system (NEC Article 250, Part H)

Ground clamps

Electronic service equipment

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Lenovo M5800 Desktop Bedienungsanleitung Seite 14