Instruction manual

ENVIRONMENTAL REQUIREMENTS
Additional Considerations
Noise and heat produced by the system also affect the selection of equipment location.
Acoustic Noise Levels
The acoustic noise levels for the various cabinet configurations are described below.
With Multi-Carrier Cabinet(s)
The noise produced by a cabinet with five carriers is 51, 53, and 56 dBa at low, medium, and
high fan speeds, respectively, at a distance of 5 feet.
Note: If the system cabinet door is open, there is an additional 1 dBa of noise. The tape
drive also causes additional noise. When the tape drive is reading data, there is an
additional 1 dBa of noise. When the tape recorder is rewinding or fast winding, there
is an additional 2 dBa of noise.
With Single-Carrier Cabinet(s)
The noise produced by the system is as follows:
One cabinet— 48 dBa at a distance of 5 feet
Two cabinets— 50 dBa at a distance of 5 feet
Three cabinets— 52 dBa at a distance of 5 feet
Four cabinets— 53 dBa at a distance of 5 feet
Note: If the system cabinet door is open, there is an additional 1 dBa of noise. The tape
recorder also causes additional noise. When the tape recorder is reading data, there
is an additional 2 dBa of noise. When the tape recorder is rewinding or fast winding,
there is an additional 4 dBa of noise.
Heat Dissipation
The amount of heat dissipated by DEFINITY Generic 1 cabinet configurations is described below.
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