Installation manual

o
o
Noise levels are not additive. Use the following
logarithmic formula for the emission level
of
your
system
configuration.
The formula for the
sound
power-emission level
of
a
sample configuration consisting
of
a 9375, 9335-A01,
and
two 9335-B01s is as follows:
Lsum
=
log
[
sum
lOLwAd
]
log [ 1 (J3.6 + 1 (J5.8 + 10
7
.
1
+
107.
1
)
log [ 3981071.7 + 630957.3 + 12589254
+ 12589254 }
log [ 29790537 }
7.47 bels
The following table lists five sample configurations
and
the
power-emission levels
(LwAd)
of
each. For example,
configuration
IJ
includes
one 9373, one 9332,
and
one 9347,
with
a power-emission level
(LwAd)
of
7.0
bels.
Processor
Number
of
Devices
Sample
Model
9332 9335-A 9335-B
9347
LwAd
iii
9373
1 0 0
1
7.0
bels
m
9373
2 0
0
1
7.1
bels
B
9375
0 1
2
0 7.4
bels
iii
9375
0
1 3
0
7.7
bels
Ii
9377
0
1
3
0
7.7
bels
Figure
A-3.
Power-Emission
Level
for
Sample
Configurations
A-5