Chapter 5 Specifications
Environmental Requirements
LTO-4 Half-Height Tape Drive User’s Guide
35
Environmental Requirements
Table 7
lists the environmental specifications of the LTO-4 Half-Height
Tape Drive.
Table 7
Environmental
Requirements
Specification
Operational
Nonoperational
Acoustic level idling
(A-wt sum)
52 dBA maximum 5.0 LwA Bels
—
Acoustic level operational
(A-wt sum)
57 dBA maximum 5.5 LwA Bels
—
Airflow requirements
Internal: 9 CFM (front to back)
N/A
Altitude
max 10,000 feet MSL
(at 25°C)
40,000 feet (power off)
Humidity gradient
10% per hour
10% per hour
Relative humidity
20% to 80% non-condensing
10% to 95% non-condensing
Shock (1/2 sine wave)
10 Gs peak, 11 msec
40 Gs peak, 11 msec
Temperature
+50° to +104°F
(+10° to + 40°C)
–40° to +149°F
(–40° to + 66°C)
Thermal gradient
11°C per hour (10-40°C)
11°C per hour (10-40°C)
Vibration (sweep test)
0.005 inches DA (5-43 Hz)
0.50 G peak (43–1000 Hz)
sweep rate 5-1000Hz;
1.0 octave per minute
0.1 inches (5-–15Hz)
1.0 G (15–500 Hz)
1.0 octave per minute
