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Chapter 1. Requirements | Section |
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under overhead plumbing, sprinkler system valves, or in areas that are susceptible to flooding.
Lighting: Sufficient lighting is required for testing and maintenance.
Lightning Protection/Grounding: The system must be properly grounded to protect from lightning damage. The following UL conditions must be met to ensure proper grounding. (For grounding instructions, see page
•Supplemental and independent equipment grounding conductors are to be installed between the system and the wiring system ground.
•One of the equipment grounding conductors must be a conductor that is as large or larger than the ungrounded
•The other equipment grounding conductor shall comply with the general rules for grounding contained in Article 250 of the National Electric Code, NFPA 70, but its connection to ground shall not depend on the cord and plug of the system.
•The
•A marking adjacent to the telecommunications jacks must instruct the user to connect a supplementary equipment grounding conductor before any telecommunication lines are connected to the product or system.
Cleaning
•Use a slightly damp cloth to clean the phones. The phones should never be cleaned with benzene, paint thinner, or other solvents.
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DBS Manual - Revised April 2000 |