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Chapter 5 Specifications

Injected Noise Specifications

LTO-4 (Model B) Half-Height Tape Drive User’s Guide 49

Injected Noise Specifications

The internal drive operates without degradation of error rates with 100

mV of noise injected between the chassis and 0 V at the power

connector at any frequency between 45 Hz and 20 MHz.

Reliability Specifications

The LTO-4 (Model B) Half-Height Tape Drive is designed for maximum

reliability and data integrity. Ta b le 8

lists the reliability specifications.

Airflow requirements Internal: 5 CFM (front to back)

Altitude Maximum 13,000 feet MSL

(at 25°C)

50,000 feet (power off)

Humidity gradient <30% per hour 30% 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 10°C per hour 20°C per hour

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

Specification Operational Nonoperational

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Quantum LTO 4 Guia do Utilizador Página 65