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Operating Limits
A-5
Technical Specifications
Operating Limits
The ambient temperature specification is measured at the front bezel
inlet. The site must have air conditioning of the correct size and
placement to maintain the specified ambient temperature range. The
air conditioning must be able to handle the BTU requirements of the
disk enclosures.
The operating limits for temperature and humidity must not be exceeded
inside the closed cabinet in which the
DAE2s are mounted. Mounting
equipment in a cabinet directly above or below a
DAE2 does not restrict air
flow to the disk enclosure, because air flows through the enclosure from front
to back. Cabinet doors must not impede the front-to-back air flow.
Shipping and Storage Requirements
Requirement Description
Ambient temperature 10
o
C to 40
o
C (50
o
F to 104
o
F)
Temperature gradient 10
o
C/hr (18
o
F/hr)
Relative humidity 20% to 80% noncondensing
Elevation 2438 m (8,000 ft) at 40
o
C, 3077 m (10,000 ft) at 37
o
C
Requirement Description
Ambient temperature -40
o
C to 65
o
C (-40
o
F to 149
o
F)
Temperature gradient 25
o
C/hr (45
o
F/hr)
Relative humidity 10% to 90% noncondensing
Elevation 7625 m (25,000 ft)