IBM 6H0, Service Manual

Page: 516 / 561

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
Noise Emissions Operating Idle
With H80 CEC Drawer only
L
WAd
5.8 bels 5.8 bels
L
pAm
N/A N/A
<L
pA
>
m
45 dBA 45 dBA
Impulsive or prominent discrete
tones
No No
Noise Emissions Operating Idle
With H80 and Primary I/O
Drawer
L
WAd
6.2 bels 6.2 bels
L
pAm
N/A N/A
<L
pA
>
m
48 dBA 48 dBA
Impulsive or prominent discrete
tones
No No
Noise Emissions
1
Operating Idle
L
WAd
5.8 bels 5.8 bels
L
pAm
N/A N/A
<L
pA
>
m
45 dBA 45 dBA
Impulsive or prominent discrete
tones
No No
1. Noise emissions data are based on the following configuration: the drawer is mounted in a
T00 Rack and a power distribution unit.
Noise Emission Notes
1. L
WAd
is the declared (upper limit) sound power emission level for a production
series of machines.
2. L
pAm
is the mean value of the A-weighted 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 A-weighted sound pressure
emission levels at the one-meter positions for a production series of machines.
4. N/A = Not Applicable (no operator position).
5. All measurements are made in accordance with ISO DIS 779 and reported in
conformance with ISO DIS 7574/4.
496
Service Guide