IBM RS/60000 Series Site And Hardware Planning Information page 190

Number of I/O 1
Subsystems
Slimline Doors 1021
With IBF
Slimline Doors 846
Without IBF
Acoustical Doors 1034
With IBF
Acoustical Doors 872
Without IBF
No Doors With IBF 994
No Doors Without 820
IBF
Note: Italicized numbers indicate single-frame systems.
Acoustical Noise Emissions
Product Configuration
7040 Acoustical Doors
7040 Slimline Doors
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 is the upper-limit A-weighted sound power level; LpAm is the mean A-weighted sound pressure level at the
WAd
1-meter bystander positions; 1 B = 10 dB.
4. All measurements made in conformance with ISO 7779 and declared in conformance with ISO 9296.
172
Site and Hardware Planning Information
Total System Weight (Kilograms)
2 3 4
1095 1170 1648
921 996 1097
1109 1184 1675
947 1022 1137
1069 1144 1595
894 969 1044
Declared A-Weighted Sound Power
Level, L (B)
WAd
Operating
7.5
7.9
5 6
1748 1823
1481 1556
1775 1850
1509 1583
1696 1770
1429 1504
Acoustical Characteristic
Declared A-Weighted Sound Pressure
Level, LpAm (dB)
Idle Operating
7.5 57
7.9 62
7 8
1898 1973
1631 1706
1925 2000
1658 1733
1845 1920
1579 1653
Idle
57
62