RCA DVR40 User Guide - Page 160
Warranty and Specifications, Example of Proper Antenna Grounding
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Chapter 9 Warranty and Specifications 21. Polarization-The DIRECTV® DVR is equipped with a plug that will fit into the power outlet only one way. Do not modify the plug. If the plug does not fit, contact your electrician to replace your outlet. To prevent electric shock, do not use this plug with an extension cord or outlet unless you can fully insert the blades without blade exposure. 22. Satellite Dish Antenna Grounding-The outdoor satellite dish antenna and the cable which connects the satellite dish antenna to the DVR must comply with local installation codes and the appropriate sections of the National Electric Code (NEC). In particular they must comply with Article 81015, which covers proper installation and grounding of television receiving equipment. They must also comply with Article 820-33, which specifies that the satellite dish antenna cable ground shall be connected to the grounding system of the building as close to the point of cable entry as is practical. These codes require proper grounding of the metal structure of the outdoor satellite dish antenna and grounding of the connecting cable at a point where it enters the house (or other building). If a professional installs the Satellite Dish Antenna, be sure that the installer observes installation codes. If additional local installation codes apply, contact local inspection authorities. It is important to comply with these codes for proper operation of the DVR. Example of Proper Antenna Grounding Ground clamp Electric service equipment Coaxial cable Grounding block Coaxial cable Ground clamps Grounding conductors Power service grounding electrode (NEC Art. 250 Part H) Note: If the Satellite/Antenna cable is grounded correctly (as specified above), connecting it to the DIRECTV® DVR will properly ground the DVR. The DVR must be properly grounded before you connect it to a telephone line, and it must remain grounded thereafter. 150