IBM 87302RU, Планирование и руководство по установке

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Electrical input for Type 8720
The BladeCenter T Type 8720 requires the following electrical input:
v Input voltage:
– Minimum: -38 V dc
– Maximum: -75 V dc
– Nominal: -48 V dc
Electrical input for Type 8730
The BladeCenter T Type 8730 requires the following electrical input:
v Sine-wave input (50-60 Hz single-phase) required
v Input voltage:
– Minimum: 200 V ac
– Maximum: 240 V ac
Cooling considerations
The operating environment for BladeCenter T units must provide sufficient
temperature and humidity control to ensure BladeCenter T thermal failures do not
occur. Key requirements are:
v
Air temperature and humidity
v Air flow
v Installation into a rack
v Prevention of air recirculation
v Room cooling
Air temperature and humidity for Telecom/NEBS environment
See Table 19 for the permissible temperatures and humidity limits for a BladeCenter
T Type 8720.
Table 19. BladeCenter T Type 8720 temperature and humidity limits
BladeCenter T
Power
Altitude Temperature range Humidity range
On -60 to 1800 m (-197
ft to 6000 ft)
5° to 40° C (41° to
104° F)
5% to 85%
On (short term) -60 to 1800 m (-197
ft to 6000 ft)
-5° to 55° C (23° to
131° F)
5% to 90% not to
exceed 0.024
water/kg of dry air
On 1800 m to 4000 m
(6000 to 13,000 ft)
5° to 30° C (41° to
86° F)
5% to 85%
On (short term) 1800 m to 4000 m
(6000 to 13,000 ft)
-5° to 45° C (23° to
113° F)
5% to 90% not to
exceed 0.024
water/kg of dry air
Off Uncontrolled Uncontrolled Uncontrolled
Air temperature and humidity for non-NEBS environment
See Table 20 on page 63 for the permissible temperatures and humidity limits for a
BladeCenter T Type 8730.
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BladeCenter T Types 8720 and 8730: Planning and Installation Guide