Environment - IBM 1269-3S2 Installation, Service And User Manual

IBM System Storage DCS9900 1269-3S2 Storage Expansion Unit Installation, Service, and User Guide

1.5.6 Environment

Table 1–3
Operational
Non-Operational
Storage
Shipping
Airflow
Altitude, Operational
Operational Derating
Altitude, Non-Operational
Shock, Operational
Shock, Non-Operational
Vibration, Operational
Vibration, Non-Operational
Vibration, Relocation
Acoustics
Orientation and Mounting
• Rack Rails
• Rack Characteristics
Safety and Approvals
• EMC
Cooling
Capacity of exhaust
10
Ambient Temperature and Humidity
Temperature Range
+5°C to +40°C
(+41°F to +104°F)
0°C to +50°C
(+32°F to +122°F)
+1°C to +60°C
(+33.8°F to +140°F)
-40°C to +60°C
(-40°F to +140°F)
System must be operated with low pressure rear exhaust installation.
(Back pressure created by rack doors and obstacles not to exceed 5
pascals [0.5mm Water gauge]).
0 to 2133m (0 to 7,000ft)
(10,000ft at maximum ambient of 35°C)
Derate ambient temperature by 1 degree C for every 1000 feet (304.8
meters) increase above sea level.
-305 to 12,192m (-1000 to 40,000ft)
Vertical axis 5g peak 1/2 sine, 10ms
30g 10ms 1/2 sine
0.21grms 5-500 Hz Random
1.04grms 2-200 Hz Random
0.3g 2-200 Hz sine
Sound Pressure Operating - Less than 58 dB LpA average
measured at the bystander positions.
(The 4 bystander positions are 1m horizontal and 1.5m off the floor
positioned front, back, left, and right. The unit under test will be
measured on the floor.)
Measured at 20°C
19" Rack mount (3 EIA Units)
To fit 800mm depth Racks compliant with IEC 297
Back pressure not exceeding 5 pascals (0.5mm water gauge)
CE, UL, cUL
EN55022 (CISPR - A), FCC A
1365 BTU/hour
72 cfm
Relative Humidity Max. Wet Bulb
20% to 80% 23°C (73.4F)
non-condensing
8% to 80% 27°C (80.6°F)
non-condensing
8% to 80% 29°C (84.2°F)
non-condensing
5% to 100% 29°C (84.2°F)
non-precipitating