APPENDIX A—SPECIFICATIONS

ACOUSTIC NOISE LIMITS

The overall, averaged A-weighted sound pressure level (in decibels) for the autoloader does not exceed the upper limits specified in Table A-5.

Table A-5Acoustic noise limits

 

 

 

 

 

Operating Mode

L

a

 

 

pA

The autoloader is powered on and idle.

50 dBA

 

 

The carousel or cartridge loader is moving and

60 dBAb

the tape drive is operating in streaming mode.

 

 

 

 

 

aLpA is the average A-weighted sound pressure level over the following frequency range: 5 Hz to 12.5 KHz.

bRepresents a maximum sustained operational level.

SHOCK AND VIBRATION LIMITS

The autoloader will operate normally after experiencing shock loads as specified in Table A-6. The operating shock levels indicate how much shock the autoloader can withstand while the enclosed tape drive is reading and writing data. The non-operating and storage shock levels indicate how much shock the autoloader can withstand when it is not operating. After experiencing this amount of shock, the autoloader will operate normally.

Table A-6Shock limits

Operating

Random vibration at 1 Hz – 400 Hz @ 0.3 Grms, 20 minutes per axis.

 

Swept Sine 5 Hz – 500 Hz – 5 Hz @ 0.75 g, 1 octave per minute, 3 sweeps per axis

 

3 g, 5 ms half sine, 20 shocks each side

 

 

Non-Operating

Random vibration at 1 Hz – 400 Hz @ 1.06 Grms, 20 minutes per axis.

 

Swept Sine 5 Hz – 500 Hz – 5 Hz @ 0.75 g, 1 octave per minute, 3 sweeps per axis

 

30 g, 11 ms half sine, 3 shocks per side, 18 total

 

 

124

 

PRODUCT MANUAL

1012581

 

 

 

 

 

 

 

Page 140
Image 140
Exabyte 1X7 LTO manual 124, Acoustic Noise Limits, Shock and Vibration Limits, Non-Operating