Operating Safety; Mounting Installation Environment Precaution - Lanner nca-5510 User Manual

Operating Safety


Electrical equipment generates heat. Ambient air temperature may not be adequate to
cool equipment to acceptable operating temperatures without adequate circulation. Be
sure that the room in which you choose to operate your system has adequate air
circulation.

Ensure that the chassis cover is secure. The chassis design allows cooling air to circulate
effectively. An open chassis permits air leaks, which may interrupt and redirect the flow of
cooling air from internal components.
Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. ESD
damage occurs when electronic components are improperly handled and can result in
complete or intermittent failures. Be sure to follow ESD-prevention procedures when removing
and replacing components to avoid these problems.

Wear an ESD-preventive wrist strap, ensuring that it makes good skin contact. If no wrist
strap is available, ground yourself by touching the metal part of the chassis.

Periodically check the resistance value of the antistatic strap, which should be between 1
and 10 megohms (Mohms).

Mounting Installation Environment Precaution

1. Elevated Operating Ambient - 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 maximum ambient temperature (Tma) specified by the manufacturer.
2. Reduced Air Flow - Installation of the equipment in a rack should be such that the amount of
air flow required for safe operation of the equipment is not compromised.
3. Mechanical Loading - Mounting of the equipment in the rack should be such that a
hazardous condition is not achieved due to uneven mechanical loading.
4. Circuit Overloading - Consideration should be given to the connection of the equipment to
the supply circuit and the effect that overloading of the circuits might have on over-current
protection and supply wiring. Appropriate consideration of equipment nameplate ratings
should be used when addressing this concern.
5. Reliable Earthing - Reliable earthing 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)."
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