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18. Object and liquid entry.
Never push objects of any kind into this product
through openings as they may touch dangerous
voltage points or short out parts that could result
in fire or electric shock. Never spill or spray any
type of liquid on the product.
19. Outdoor antenna grounding.
If an outside antenna is connected to the prod-
uct, be sure the antenna system is grounded so
as to provide some protection against voltage
surges and built up static charges. Section 810
of the National Electric Code ANSI/NFPA 70
provides information with respect to proper to
grounding of the mast and supporting structure,
grounding of the lead-in wire to an antenna dis-
charge product, size of grounding conductors,
location of antenna-discharge product, connec-
tion to grounding electrodes and requirements
for the grounding electrodes.
20. Service.
Do not attempt to service this product yourself
as opening or removing covers may expose you
to dangerous voltage or other hazards. Refer all
servicing to qualified service personnel.
21. Replacement parts.
When replacement parts are required, be sure
the service technician uses replacement parts
specified by the manufacturer or those that have
the same characteristics as the original parts.
Unauthorized substitutions may result in fire or
electric shock or other hazards.
22. Safety check.
Upon completion of any service or repairs to this
product, ask the service technician to perform
safety checks to determine that the product is in
proper operation condition.
23. Wall or ceiling mounting.
The product should be mounted to a wall or ceil-
ing only as recommended by the manufacturer.
24. Damage requiring service.
Unplug this product from the wall outlet and refer
service to qualified service personnel under the
following conditions.
a) When the power-supply cord or plug is dam-
aged.
b) If liquid has been spilled or objects have fallen
into the product.
c) If the product has been exposed to rain or water.
d) If the product does not operate normally by fol-
lowing the operating instructions. Adjust only
those controls that are covered by the operating
instructions, as an adjustment of other controls
may result in damage and will and require exten-
sive work by a qualified technician to restore in
the product to its normal operation.
e) If the product has been dropped or the cabinet
has been damaged.
f) When the product exhibits a distinct change in
performance-this indicates a need for service.
25. Note to CATV system installer.
This reminder is provided to call the CATV sys-
tem installer's attention to Article 820-40 of the
NEC that provides guidelines for proper ground-
ing and, in particular, specifies that the cable
ground shall be connected to the grounding sys-
tem of the building, as close to the point of cable
entry as practical.
NOTE: Refer all servicing to qualified service
personnel Servicing is required when the unit
has been damaged in any way such as the
following: the power-supply coredor plug has
been damaged, liquid has been spilled into unit,
the unit has been exposed to rain or moisture,
the unit has been dropped or the unit does not
operate normally.
IMPORTANT SAFETY INSTRUCTIONS
ANTENNA
LEAD IN
WIRE
ANTENNA
DISCHARGE UNIT
(NEC SECTION 810-20)
GROUNDING CONDUCTORS
(NEC SECTION 810-21)
GROUND CLAMPS
POWER SERVICE GROUNDING
ELECTRODE SYSTEM
(NEC ART 250, PART H)
NEC - NATIONAL ELECTRICAL CODE
ELECTRIC
SERVICE
EQUIPMENT
GROUND
CLAMP
S2898A
EXAMPLE OF ANTENNA GROUNDING AS PER
NATIONAL ELECTRICAL CODE