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Level 03c, May 2011
Acoustics
This appendix provides information on acoustics for the z10 BC at nominal
environmental ambient temperatures of 23
minus 3.6
Acoustical noise emission levels
Relevant international standards:
v Measurements: ISO 7779
v Declaration: ISO 9296
© Copyright IBM Corp. 2008, 2011
o
F).
Product Configuration
Typical Configuration:
One processor node and one I/O
drawer. All AMDs at nominal speeds;
front and rear acoustical doors
installed and closed.
Maximum Configuration:
One processor node and four I/O
drawers. All AMDs at nominal
speeds; front and rear acoustical
doors installed and closed.
Notes:
1. L
is the (upper limit) A-weighted sound power level.
WAd
2. L
is the mean A-weighted sound pressure level at the 1-meter bystander position.
pAm
3. All measurements are made in accordance with ISO 7779, and reported in conformance
with ISO 9296.
4. B and dB are the abbreviations for bels and decibels, respectively. 1B = 10dB.
o
C plus or minus 2
Declared A-Weighted
Sound Power Level
L
WAd (B)
Operating
(B)
Idling (B)
7.1
7.1
7.2
7.2
o
o
C (73.4
F plus or
Declared A-Weighted
Sound Pressure Level
L
pAm (dB)
Operating
(dB)
Idling (dB)
53
53
54
54
99
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