Acorn Computers Limited Winchester disk 110, Руководство по обслуживанию

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3.5 Environmental
Minimum operating temperature 0 degrees C
Maximum operating temperature +37 degrees C
Minimum storage temperature -30 degrees C
Maximum storage temperature +60 degrees C
Maximum operating humidity 80% RH at 35 degrees C
Maximum storage humidity 80% RH at 55 degrees C
Operating altitude 0 to 1800 metres above sea level
Storage altitude 0 to 3500 metres above sea level
Thermal gradient 10 degrees C per hour
Operation lifetime 50,000 hours
Mean time before failure 10,000 hours of typical usage
3.6 Outside dimensions
height 100mm (108mm including feet)
width 335mm
depth 365mm
3.7 Connections
Two 37 way D-type socket connectors are provided for 1MHz bus daisy chain
connection. These are on the rear panel and are labelled '1MHz bus IN' and '
OUT', although they are in fact identical. Three removable resistor packs are
mounted on the Host Adapter PCB inside the case for 1MHz bus termination.
These packs are fitted as standard, but need be retained only in the last
unit in the daisy chain.
Also on the rear panel is an IEC plug for mains power input.
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