Lenovo S310 All-in-One - Manual (Page 14)

13
Safety, Warranty, and Setup Guide
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
The following notice applies to all countries and regions.
DANGER
Outdoor antenna grounding
If an outside antenna or cable system is connected to the equipment,
be sure the antenna or cable system is grounded as to provide some
protection against voltage surges and built-up static charges.
31505241 Lenovo S310 SWSG V1.0 (EN)(R).indb 13 2013-7-15 19:03:02