Total System Weight (Kilograms)
Number of I/O
Subsystems
1
2
3
4
5
6
7
8
Slimline Doors
With IBF
1021
1095
1170
1648
1748
1823
1898
1973
Slimline Doors
Without IBF
846
921
996
1097
1481
1556
1631
1706
Acoustical Doors
With IBF
1034
1109
1184
1675
1775
1850
1925
2000
Acoustical Doors
Without IBF
872
947
1022
1137
1509
1583
1658
1733
No Doors With IBF
994
1069
1144
1595
1696
1770
1845
1920
No Doors Without
IBF
820
894
969
1044
1429
1504
1579
1653
Note:
Italicized numbers indicate single-frame systems.
Acoustical Noise Emissions
Acoustical Characteristic
Product Configuration
Declared A-Weighted Sound Power
Level, L
WAd
(B)
Declared A-Weighted Sound Pressure
Level, LpAm (dB)
Operating
Idle
Operating
Idle
7040 Acoustical Doors
7.5
7.5
57
57
7040 Slimline Doors
7.9
7.9
62
62
Notes:
1. Noise levels cited are for a typical configuration (A-Frame: Bulk Power, CEC cage, battery option, media drawer,
and two I/O drawers).
2. The 0.6-B (6-dB) reduction in noise emission levels with the acoustical rear door corresponds to a factor of 4
reduction. That is, the noise level of a single A-Frame with thin covers is about the same as the noise level of
four A-Frames with acoustical covers.
3. L
WAd
is the upper-limit A-weighted sound power level; LpAm is the mean A-weighted sound pressure level at the
1-meter bystander positions; 1 B = 10 dB.
4. All measurements made in conformance with ISO 7779 and declared in conformance with ISO 9296.
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