Appendix A: PX-820 Specifications
PX-820 Installation and Users Manual
71
Environmental Conditions (continued)
Shock,
Operating
Data read with retry (no audio play)
Pulse duration and peak level:
CD read 6G, write 1.5G
DVD read 6 G, write 1G
Pulse duration: 11ms, half sine wave
Direction of shock: ±X, ±Y and ±Z axis
Once per direction=6 times
Pulse duration and peak level:
2ms/60G (read), CD and DVD, half sine wave
Direction of shock: Horizontal (-z) Left side down (-z),
right side
Shock, Non-
Operating
No disc and power off
Pulse duration and peak level: 10ms/100G and
2ms/200G, half sine wave
Direction of shock: ±X, ±Y, ±Z axis
Once per direction=6 times
Electrostatic
Discharge
±8KV aerial discharge
±4KV contact discharge
Reliability
MTBF 70,000
hours
25 degrees C, 10% duty cycle read and seek, 90%
duty cycle idle (laser off, motor off)
Tray Loading
30,000 load/unload cycles
Read Error
Rate
CD-ROM Mode 1: <10
12
block/ bit
CD-ROM Mode 2: <10
9
block/bit
DVD-ROM: <10
12
block/bit
Seek error rate: <10
6
block/bit
