User Guide
1. Overview
1.6 Performance Specifications
Specification
Non-Operational
Operational
Swept Sine:
0.50G, 0 - peak
swept sine; 5 - 500Hz; 1
complete sweep @ 1/2 octave
per minute
Weight
107.04 kg / 236 lbs.
Dimensions
W:
448.8 mm x
L:
1000 mm x
H:
176.7 mm /
W:
17.6 in. x
L:
39.4 in. x
H:
6.9 in.
System Installation Length
1000 mm / 39.4 in. from the front rack chassis mounts to the rear of
the system
Required Rack Depth
1000 mm / 39.4 in. of usable rack space, frame to frame
Required Rack Width
450mm (17.72in.) with 465mm (18.31in.) ± 1.5mm nominal hole
spacing. See EIA-310 Rack Standard
Rack Units (U)
4U
Vertical Rack Rail Spacing
718 mm – 850 mm / 28.26 in. – 33.46 in.
Table 7:
Acoustic Specifications
Quantities Declared
Idle
Mode
Operating
Mode
Fan Fail
Mode
5
Max Fan
Mode
A-weighted sound power level
1
,
L
WAd
{1 B = 10
dB}
8.5
8.5
9.6
9.6
Average A-weighted emission sound pressure
level
2
,
L
pAm
(dB) {bystander position
3
}
66.0
66.0
74.9
76.2
Statistical adder for verification
4
,
K
(dB)
2.5
2.5
2.5
2.5
Notes on Acoustic Testing Methodology and Environment:
•
Background noise: <7dBA
•
Environmental test conditions: ~23° C, 57% RH, 101.3 kPa
•
Tested configuration: 3U NVMeOF VBOF device with 10 devices installed.
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 S
R
= 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.
1.6
Performance Specifications
9
