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SPECIFICATIONS
2.5 Environmental Requirements
Table 2-6 lists the environmental specifications for Python drives. The Python internal DAT drives may be
mounted either vertically (drive left side up or right side up) or horizontally.
Table 2-6. Environmental Specifications: Python DDS-DC Drives
SPECIFICATION
Temperature
Thermal Gradient
Relative Humidity
Maximum Wet
Bulb Temperature
Altitude
Vibration, peak to peak
displacement
OPERAllONAL
+41 0 to + 113 0 F(1)
(+ 50 to + 45 0 C)
2 0 C/minute
(no condensation)
20% to 80%
noncondensing (1)
-100 to +4,575 meters
0.9 mm (1-17 Hz)
0.73 9 (17 to 500 Hz)
NONOPERA llONAL
- 400 to
+
149°F(2)
(- 40
0
to + 65°C)
Below condensation
0% to 90%
non condensing (2)
No condensation
-300 to +15,250 meters
1.5 9 (5 to 500 Hz)
Vibration peak
acceleration
(Sweep rate less than 1 octave/minute)
Acoustic level
Idling
Acoustic level
Operational
Shock (1/2 sine wave)
(1)Mechanism and media
(2)M ech an ism
49 dBA maximum
53 dBA maximum
(measured in suitable
endosure at 3-ft distance
and operator height)
10 g's peak, 11 msec
2.6 OAT Cassette Specifications
50 g's peak, 11 msec
Python DDS-DC DAT drives provide maximum data integrity and reliability when Archive-qualified DAT
cassettes are used as the recording medium. Archive maintains an ongoing program to· qualify manufacturers
of DAT cassettes. The following cassettes are recommended:
o
DDS data cassette: Archive Model M3l300, 60-meter tape (Archive
PIN:
2540B-lOx; order
multiples of five)
o
DDS data cassette: Archive Model M32000, 90-meter tape (Archive
PIN:
25744-l0x; order
mUltiples of five)
2-7
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