Declared Acoustical Noise Emissions; Noise Emission Notes - IBM 7026-H80 - RS/6000 - 256 MB RAM Service Manual

Declared Acoustical Noise Emissions

Noise Emissions
With H80 CEC Drawer only
L
WAd
L
pAm
<L >
pA m
Impulsive or prominent discrete
tones
Noise Emissions
With H80 and Primary I/O
Drawer
L
WAd
L
pAm
<L >
pA m
Impulsive or prominent discrete
tones
Noise Emissions
L
WAd
L
pAm
<L >
pA m
Impulsive or prominent discrete
tones
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
series of machines.
2. L
pAm
operator position (if any) for a production series of machines.
3. <L
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.
494
Service Guide
1
is the declared (upper limit) sound power emission level for a production
is the mean value of the A-weighted sound pressure emission levels at the
> is the mean value of the space-averaged A-weighted sound pressure
pA m
Operating
5.8 bels
N/A
45 dBA
No
Operating
6.2 bels
N/A
48 dBA
No
Operating
5.8 bels
N/A
45 dBA
No
Idle
5.8 bels
N/A
45 dBA
No
Idle
6.2 bels
N/A
48 dBA
No
Idle
5.8 bels
N/A
45 dBA
No