IBM 6275 - PC 300 GL, Техническое руководство

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Chapter 3. Physical Specifications
Tower Model
Dimensions
Height: 492 mm (19.4 in.)
Width: 200 mm (7.9 in.)
Depth: 445 mm (17.5 in.)
Weight
Minimum configuration as shipped: 15 kg (33 lb)
Maximum configuration: 17.3 kg (38 lb)
Environment
Air temperature:
– System on: 10° to 32°C (50° to 90°F)
– System off: 10° to 43°C (50° to 110°F)
Humidity:
– System on: 8% to 80%
– System off: 8% to 80%
Maximum altitude: 2134 m (7000 ft)
Electrical Input
Sine-wave input (50 to 60 Hz) is required
Input voltage:
– Low range:
- Minimum: 90 V ac
- Maximum: 137 V ac
- Voltage switch setting: 115 or 115 V
– High range:
- Minimum: 180 V ac
- Maximum: 265 V ac
- Voltage switch setting: 230 or 230 V
– Input kilovolt-amperes (kVA) (approximately):
- Minimum configuration as shipped: 0.08 kVA
- Maximum configuration: 0.51 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.
Heat Output
Approximate heat output in British thermal units (Btu) per
hour:
– Minimum configuration: 245 Btu/hr (70 watts)
– Maximum configuration: 969 Btu/hr (285 watts)
Airflow
Approximately 0.56 cubic meters per minute (20 cubic feet
per minute)
Acoustical Noise-Emission Values
Average sound-pressure levels:
– At operator position:
- 33 dBA idle
- 35 dBA operating
– At bystander position–1 meter (3.3 ft):
- 29 dBA idle
- 32 dBA operating
Declared (upper limit) sound power levels:
– 4.5 bels idle
– 4.8 bels operating
Note: These levels were measured in controlled acoustical
environments according to 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 your 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.
Note: PC 300GL and 300PL computers do not support IDE expansion adapters or the IBM PCMCIA
adapter for PCI.
SCSI Adapter
Some computers come with an Adaptec SCSI-II Ultra Wide adapter installed in one of the expansion slots.
This adapter provides an interface between the PCI bus and SCSI devices. SCSI technology is useful
with multitasking operating environments because instructions can be sent concurrently to every drive in
the system, and the drives can then execute these instructions simultaneously.
An extra cable is provided with SCSI models. The cable included with the PC 300GL Type 6275 has four
connectors: one connector for attaching the cable to the SCSI adapter and three connectors for attaching
optional SCSI devices. The cable included with the PC 300GL Type 6285 has five connectors: one
connector for attaching the cable to the SCSI adapter and four connectors for attaching optional SCSI
devices.
For information on the adapter and connecting SCSI devices, refer to the SCSI documentation that comes
with the computer.
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Technical Information Manual