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
7040 Acoustical Doors
7.5
7.5
57
57
7040 Slimline Doors
7.9
7.9
62
62
Notes:
1. Noise levels cited are for the typical configuration (A-Frame: Bulk Power, CEC cage, battery
option, media drawer, and two I/O drawers).
2. The 0.6-B (6-dB) reduction in noise emission levels with the acoustical rear door corresponds
to a factor of 4 reduction. That is, the noise level of a single A-Frame with thin covers is about
the same as the noise level of four A-Frames with acoustical covers.
3. L
WAd
is the upper-limit A-weighted sound power level; LpAm is the mean A-weighted sound
pressure level at the 1-meter bystander positions; 1 B = 10 dB.
4. All measurements made in conformance with ISO 7779 and declared in conformance with
ISO 9296.
136
Eserver
pSeries 670 User’s Guide
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