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Chapter 2: Server Installation
Rack Mounting Considerations
Ambient Operating Temperature
If installed in a closed or multi-unit rack assembly, the ambient operating
temperature of the rack environment may be greater than the ambient tem-
perature of the room. Therefore, consideration should be given to installing
the equipment in an environment compatible with the manufacturer's maxi-
mum rated ambient temperature (Tmra).
Reduced Airflow
Equipment should be mounted into a rack so that the amount of airflow
required for safe operation is not compromised.
Mechanical Loading
Equipment should be mounted into a rack so that a hazardous condition
does not arise due to uneven mechanical loading.
Circuit Overloading
Consideration should be given to the connection of the equipment to the
power supply circuitry and the effect that any possible overloading of cir-
cuits might have on overcurrent protection and power supply wiring.
Ap-
propriate consideration of equipment nameplate ratings should be used
when addressing this concern.
Reliable Ground
A reliable ground must be maintained at all times. To ensure this, the rack
itself should be grounded.
Particular attention should be given to power
supply connections other than the direct connections to the branch circuit
(i.e. the use of power strips, etc.).
2-3
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