IBM TotalStorage DS4000 Hardware Maintenance Manual page 135

Table 49. Specifications for FAStT EXP15 and FAStT EXP200 (continued)
Specification FAStT EXP15 Type 3520
Electrical Input: Sign-wave input (50 to 60 Hz)
v Low range: Minimum: 90 V ac / Maximum: 127 V ac
v High range: Minimum: 198 V ac / Maximum: 257 V ac
Input Kilovolt-amperes (kVA) approximately
v Minimum configuration: 0.06 kVA
v Maximum configuration: 0.39 kVA
Environment Air Flow: Air flow is from front to back
Air temperature:
v Expansion unit on:
v Expansion unit on:
Humidity: 10% to 80%
Approximate heat output in British Thermal Units (BTU) per hour:
Heat Output
v Minimum configuration: 205.2 BTU (60 watts)
v Maximum configuration: 1333.8 BTU (390 watts)
Acoustical Noise For open bay (0 hard disk drives installed) and typical system configurations (8 hard disk
Emissions Values drives installed).
v Sound Power (idling):
– 6.2 bels (open bay)
– 6.4 bels (typical)
v Sound Power (operating):
– 6.2 bels (open bay)
– 6.5 bels (typical)
v Sound Pressure (idling):
– 47 dBA (open bay)
– 49 dBA (typical)
v Sound Pressure (operating):
– 47 dBA (open bay)
– 50 dBA (typical)
These levels are measured in controlled acoustical environments according to ISO 7779 and are
reported in accordance with ISO 9296. The declared sound power levels indicate an upper
limit, below which a large portion of machines operate. Sound pressure levels in your location
might exceed the average 1-meter values stated because of room reflections and other nearby
noise.
10° to 35° C (50° to 95° F)
Altitude: 0 to 914 m (3000 ft.)
10° to 32 °C (50° to 90° F)
Altitude: 914 m (3000 ft.) to 2133 m (7000 ft.)
Chapter 12. IBM TotalStorage FAStT EXP15 and EXP200 Storage Expansion Units
FAStT EXP200 Type 3530
v Sound Power (idling):
– 6.3 bels (open bay)
– 6.5 bels (typical)
v Sound Power (operating):
– 6.3 bels (open bay)
– 6.6 bels (typical)
v Sound Pressure (idling):
– 47 dBA (open bay)
– 49 dBA (typical)
v Sound Pressure (operating):
– 47 dBA (open bay)
– 50 dBA (typical)
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