IBM pSeries 650, Installation Manual

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Appendix C. Acoustical Noise Emissions
The equivalent continuous A-weighted sound pressure level at workstations (emission sound pressure
level at the 1-meter bystander positions) does not exceed 70 dB(A).
Der Geräuschpegel der Einheit ist kleiner oder gleich 70 db(A).
Declared Acoustical Noise Emissions
Acoustical Characteristic
Product Configuration Declared A-Weighted Sound Power
Level, L
WAd
(B)
Declared A-Weighted Sound Pressure
Level, LpAm (dB)
Operating Idle Operating Idle
Processor Subsystem 6.1
5
6.1
5
44
6
44
6
Notes:
1. L
WAd
is the declared sound power emission level for a production series of machines.
2. L
pAm
is the mean value of the sound pressure emission levels at the operator position (if any) for a production
series of machines.
3. <L
pA
>
m
is the mean value of the space-averaged sound pressure emission levels at the one-meter positions for a
production series of machines.
4. All measurements are made in accordance with ISO DIS 779 and reported in conformance with ISO DIS 7574/4.
5. The L
WAd
emission increases to 6.5 bels with a configuration of one 7038-6M2 and four 7311-D10 drawers.
6. The L
pA
>
m
emission increases to 48 dBA with a configuration of one 7038-6M2 and four 7311-D10 drawers.
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