Cisco D9887B Installation And Configuration Manual page 7

20 Safety Check: Upon completion of any service or repairs made to this product,
ask the service technician to perform safety checks to determine that the product
is in safe operating condition.
21 Outdoor Antenna Grounding: If an outside antenna or cable system is
connected to this product, ensure that the antenna or cable system is properly
grounded to provide protection against voltage surges and built-up static
charges. Appropriate sections of the National Electrical Code (NFPA 1990)
provide information with respect to proper grounding of the mast and
supporting structure, grounding of the lead-in wire to an antenna discharge unit,
connection to grounding electrodes, and requirements for the grounding
electrode.
78-4043743-01 Rev A
Safety Precautions
vii