Sony CDU924S manual 15

■ Drive performance

Data transfer rate

Sustained rate (Mode 1): 150 kbytes/s (normal)

	300 kbytes/s (double)
	600 kbytes/s (quadruple)
SCSI Interface
Burst rate:	2.5 Mbytes/s
	4.0 Mbytes/s (synchronous)
Access time
Full stroke:	450 ms (typical/normal)
	420 ms (typical/double)
	400 ms (typical/quadruple)
Average:	360 ms (typical/normal)
	300 ms (typical/double)
	250 ms (typical/quadruple)
■ Reliability
MTBF:	100,000 POH (with 25% duty cycle)
■ Audio
Output level	0.7 V at 47 kΩ
Line out:
Headphone:	0.55 V at 32 Ω
■ Environmental conditions
Relative humidity	10% to 90% (no condensation)
Temperature
Operating	5°C to 45°C (41°F to 113°F)
Transportation	–40°C to 60°C (–40°F to 140°F)
	(within 72 hours)
Storage	–30°C to 50°C (–4°F to 122°F)
	(within 6 months)
Temperature and
humidity gradients	10°C/hour, 10%/hour
Vibration
Operating	Read: 1.96 m/s2 (0.2 G peak) at 5 Hz to
	300 Hz (sweep)
	Write: 0.98 m/s2 (0.1 G peak) at 5 Hz to
	300 Hz (sweep)
Non-operating	19.6 m/s2 (2 G peak) at 7 Hz to 300 Hz
Transportation	1.44 m2/s4-Hz (0.015 G2/Hz) at 5 Hz to 50 Hz

Shock
Operating	Read: 49 m/s2 (5 G) at 11 ms half sine
	wave (includes 5 retries)
	Write: 4.9 m/s2 (0.5 G) at 11 ms half sine
	wave
Non-operating	490 m/s2 (50 G) at 11 ms half sine wave
Transportation	76 cm drop (with standard individual package)
■ Dimensions and weight
Dimensions	146.05 x 41.4 x 203.2 mm (w/h/d)
	(5 3/4 x 1 5/8 x 8 inches)
Mass	1.2 kg
■ Power requirement
Voltage	+5 V ± 5% DC and +12 V DC ± 10%
Ripple	+5 V: 0.05 Vp-p
	+12 V: 0.1 Vp-p
Current
Hold track state	+5 Vdc	< 750 mA (Max)
	+12 Vdc	< 600 mA (Max)
Seeking, spin up & write
(50% duty cycle)	+5 Vdc	740 mA (Typ)
		< 1200 mA (Max)
	+12 Vdc	620 mA (Typ)
		< 1400 mA (Max)
■ Connectors
Power-in connector	Molex 53450-5411 or equivalent
Audio connectors	Molex 50460-4A or equivalent
■ Laser
Type	Semiconductor laser GaAlAs
Wave length	778 ~ 787nm (at 25°C)
Output power	2.5 mW (Read)
	35 mW (Write)
Beam divergence	60 degree

28 Specifications Specifications 29