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User Guide
Table 10: Acoustic Specifications
A-weighted sound power level
dB}
Average A-weighted emission sound pressure
2
level
, L
(dB) {bystander position
pAm
Statistical adder for verification
Notes on Acoustic Testing Methodology and Environment:
1
Declared A-weighted sound power level for a single machine, calculated per section 4.4.2 of ISO
9296-1988 and measured per ISO 3744
2
Declared A-weighted sound pressure level for a single machine, calculated per section 4.4.4 of
ISO-9296-1988 and measured per ISO 3744
3
The front and rear of the UUT were selected for the bystander location, due to access typically from the
cool or hot isle in a data center. This does not meet the four bystander positions as specified in ECMA-74
2012, but the microphones were adjusted to the preferred location.
4
The statistical adder, K, accounts for random measurement error, and is equal to 2.5 dB, which is
appropriate for a 5% risk of rejection for SR = 1.5 dB per section 4.4.2 of ISO 9296-1988.
5
At steady state condition, system/PSU fans reached 100% pwm speeds during fan fail mode testing.
• Background noise: <7dBA
• Environmental test conditions: ~23° C, 57% RH, 101.3 kPa
• Tested configuration: 3U NVMeOF VBOF device with 10 devices installed.
1.4 Physical Design
The OpenFlex F3100 and E3000 physical design emphasizes easy access to hot-swappable components,
maximization of data storage capacity in the rack, and bold aesthetic design.
Quantities Declared
1
, L
{1 B = 10
WAd
3
}
4
, K (dB)
Idle
Operating
Mode
Mode
8.5
8.5
66.0
66.0
2.5
2.5
1. Overview
1.4 Physical Design
Fan Fail
Max Fan
5
Mode
Mode
9.6
9.6
74.9
76.2
2.5
2.5
10
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