IBM 7378, Руководство по диагностике и обслуживанию

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Table 1. Features and specifications (continued)
Environment:
v
Air temperature:
– Server on: 10°C to 35°C (50.0°F
to 95.0°F); altitude: 0 to 915 m
(3000 ft)
– Server on: 10°C to 32°C (50.0°F
to 90.0°F); altitude: 915 m
(3000 ft) to 2134 m (7000 ft)
– Server on: 10°C to 28°C (50.0°F
to 83.0°F); altitude: 2134 m
(7000 ft) to 3050 m (10000 ft)
– Server off: 5°C to 45°C (41°F to
113°F)
– Shipping: -40°C to 60°C
(-40.0°F to 140°F)
Electrical input:
v
Sine-wave input (50-60 Hz)
required
v Input voltage low range:
– Minimum: 100 V AC
– Maximum: 127 V AC
v
Input voltage high range:
– Minimum: 200 V AC
– Maximum: 240 V AC
v Approximate input
kilovolt-amperes (kVA):
– Minimum: 0.60 kVA
– Maximum: 1.10 kVA
Notes:
1. Power consumption and heat
output vary depending on the
number and type of optional
features that are installed and
the power-management optional
features that are in use.
2. These levels were measured in
controlled acoustical
environments according to the
procedures that are specified by
the American National Standards
Institute (ANSI) S12.10 and ISO
7779 and are reported in
accordance with ISO 9296.
Actual sound-pressure levels in a
given location might exceed the
average stated values because
of room reflections and other
nearby noise sources. The
declared sound-power levels
indicate an upper limit, below
which a large number of
computers will operate.
Heat output:
Approximate heat output:
v
Minimum configuration: 2013 Btu
per hour (590 watts)
v
Maximum configuration: 3610 Btu
per hour (1058 watts)
Humidity:
v
Server on: 20% to 80%, maximum
dew point 21°C, maximum rate of
change 5°C/hour
v Server off: 8% to 80%, maximum
dew point 27°C
Server controls, LEDs, and connectors
This section describes the controls, light-emitting diodes (LEDs), and connectors on
the front and rear of the server.
Power control button and power-on LED
Press this button to turn the server on and off manually or to wake the
server from a reduced-power state. The states of the power-on LED are as
follows:
Off: AC power is not present, or the power supply or the LED itself has
failed.
Flashing rapidly (4 times per second): The server is turned off and is
not ready to be turned on. The power-control button is disabled. This will
last approximately 20 to 40 seconds.
Note: Approximately 20 seconds after the server is connected to ac
power, the power-control button becomes active.
Chapter 2. Introduction
9