Safety Precautions
5
• Damage requiring Service
Unplug this equipment from the wall outlet and refer
servicing to qualied service personnel under the
following conditions:
A. When the power-supply cord or the plug has been
damaged.
B. If liquid is spilled, or objects have fallen into the
equipment.
C. If the equipment has been exposed to rain or water.
D. If the equipment does not operate normally by
following the operating instructions, adjust only those
controls that are covered by the operating instructions
as an improper adjustment of other controls may result
in damage and will often require extensive work by
a qualied technician to restore the equipment to its
normal operation.
E. If the equipment has been dropped, or the cabinet
damaged.
F. When the equipment exhibits a distinct change in
performance — this indicates a need for service.
• Replacement Parts
When replacement parts are required, be sure the
service technician has used replacement parts
specied by the manufacturer or that have the same
characteristics as the original part. Unauthorized
substitutions may result in re, electric shock or other
hazards.
• Safety Check
Upon completion of any service or repairs to this
equipment, ask the service technician to perform
safety checks to determine that the equipment is in
proper operating condition.
• Field Installation
This installation should be made by a qualied service
person and should conform to all local codes.
• Correct Batteries
Warning: Risk of explosion if battery is replaced by an
incorrect type. Dispose of used batteries according to
the instructions.
• Tmra
A manufacturer’s maximum recommended ambient
temperature (Tmra) for the equipment must be
specied so that the customer and installer may
determine a suitable maximum operating environment
for the equipment.
• Elevated Operating Ambient Temperature
If installed in a closed or multi-unit rack assembly,
the operating ambient temperature of the rack
environment may be greater than room ambient.
Therefore, consideration should be given to installing
the equipment in an environment compatible with the
manufacturer’s maximum rated ambient temperature
(Tmra).
• Reduced Air Flow
Installation of the equipment in the rack should be
such that the amount of airow required for safe
operation of the equipment is not compromised.
• Mechanical Loading
Mounting of the equipment in the rack should be such
that a hazardous condition is not caused by uneven
mechanical loading.
• Circuit Overloading
Consideration should be given to connection of
the equipment to supply circuit and the eect
that overloading of circuits might have on over
current protection and supply wiring. Appropriate
consideration of equipment nameplate ratings should
be used when addressing this concern.
• Reliable Earthing (Grounding)
Reliable grounding of rack mounted equipment should
be maintained. Particular attention should be given to
supply connections other than direct connections to
the branch circuit (e.g., use of power strips).
CAUTION: There is risk of explosion if the battery is replaced with an incorrect type. Dispose used
batteries according to the instructions. This equipment is intended for indoor use only and all the
communication wiring must be limited to indoors.
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