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8. Ventilation – Slots and openings in the cabinet are provided for ventilation and to ensure reliable operation
of the product and to protect it from overheating, and these openings must not be blocked or covered. The openings
should never be blocked by placing the product on a bed, sofa, rug, or other similar surface. This product
should not be placed in a built-in installation such as a bookcase or rack unless proper ventilation is provided or
the manufacturer’s instructions have been adhered to.
9. Power Sources – This product should be operated only from the type of power source indicated on the marking
label. If you are not sure of the type of power supply to your home, consult your product dealer or local power
company. For products intended to operate from battery power, or other sources, refer to the operating instructions.
10. Grounding and Polarization – This product may be equipped with a polarized alternating-current line plug (a plug
having one blade wider than the other). This plug will fit into the power outlet only one way. This is a safety feature.
If you are unable to insert the plug fully into the outlet, try reversing the plug. If the plug should still fail to fit,
contact your electrician to replace your obsolete outlet. Do not defeat the safety purpose of the polarized plug.
11. Power-cord Protection – Power-supply cords should be routed so that they are not likely to be walked on or
pinched by items placed upon or against them, paying particular attention to cords at plugs, convenience
receptacles, and the point where they exit from the product.
12. Outdoor Antenna Grounding – If an outside antenna or cable system is connected to the product, be sure the
antenna or cable system is grounded so as to provide some protection against voltage surges and built-up
static charges. Article 810 of the National Electrical Code, ANSI/NFPA 70, provides information with regard to
the proper grounding of the mast and supporting structure, grounding of the lead-in wire to an antenna–
discharge unit, size of grounding conductors, location of antenna-discharge unit, connection to grounding
electrodes, and requirements for the grounding electrode.
13. Lightning – For added protection for this product during a lightning storm, or when it is left unattended and
unused for long periods of time, unplug it from the wall outlet and disconnect the antenna or cable systems.
This will prevent damage to the product due to lightning and power-line surges.
14. Power Lines – An outside antenna system should not be located in the vicinity of overhead power lines or
other electric light or power circuits, or where it can fall into such power lines or circuits. When installing an
outside antenna system, extreme care should be taken to keep from touching such power lines or circuits as
contact with them might be fatal.
Antenna Lead-In Wire
Antenna-Discharge Unit
(NEC Section 810-20)
Grounding Conductors
(NEC Section 810-21)
Power Service Grounding
Electronic System
(NEC ART 250. Part H)
NEC-National Electrical Code
Electrical Service
Equiptment
Ground Clamp
Ground Clamps
S2898A