IBM NETVISTA 2251, Hardware Maintenance Manual

Page: 13 / 152

Specifications
Dimensions
Height: 425 mm (16.7 in.)
Width: 140 mm (5.5 in.)
Depth: 425 mm (16.7 in.)
Weight
Minimum configuration as shipped: 9.4 kg (20 lb)
Maximum configuration: 11.3 kg (25.0 lb)
Environment
Air temperature:
System on: 10° to 35°C (50° to 95° F)
System off: 10° to 43° C (50° to 110° F)
Maximum altitude: 2134 m (7000 ft)
Note: The maximum altitude, 2134 m (7000 ft), is
the maximum altitude at which the specified air
temperatures apply. At higher altitudes, the
maximum air temperatures are lower than those
specified.
Humidity:
System on: 8% to 80%
System off: 8% to 80%
Heat output (approximate) in British thermal units (Btu)
per hour:
Minimum configuration: 240 Btu/hr. (75 watts)
Maximum configuration: 705 Btu/hr. (207 watts)
Airflow
Approximately 0.5 cubic meters per minute (18 cubic
feet per minute) maximum
Electrical input
Input voltage:
Low range:
Minimum: 90 V ac
Maximum: 137 V ac
Input frequency range: 57–63 Hz
Voltage switch setting: 115 V ac
High range:
Minimum: 180 V ac
Maximum: 265 V ac
Input frequency range: 47–53 Hz
Voltage switch setting: 230 V ac
Input kilovolt-amperes (kVA) (approximate):
Minimum configuration as shipped: 0.08 kVA
Maximum configuration: 0.3 kVA
Note: Power consumption and heat output vary
depending on the number and type of optional
features installed and the power-management
optional features in use.
Acoustical noise-emission values
Average sound-pressure levels:
At operator position:
Idle: 38 dBA
Operating: 43 dBA
At bystander position - 1 meter (3.3 ft):
Idle: 33 dBA
Operating: 37 dBA
Declared (upper limit) sound-power levels:
Idle: 4.8 bels
Operating: 5.1 bels
Note: The noise-emission levels were measured in controlled acoustical
environments according to the procedures 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 values stated 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.
For additional information, see the ISO Supplier’s Declaration , which is available
from IBM.
Chapter 2. General Information
5