MOcity 230MB Magneto-Optical
Subsystem Specifications MOcity 230MB Magneto-Optical
Subsystem Specifications
Subsystem Specifications
Input voltage As per VDE 0565-3 with fuse and integral filter
Fuse protection 230V / 1A (delayed action fuse)
115V / 2A (delaed action fuse)
Dimensions (H × W × D) 122mm × 60mm × 220mm
Weight 1.0kg
Operating noise level 42 dBA at 1 metre
Power supply 230V AC ±10%, 44mA
115V AC ±10%, 66mA
Power consumption 10W maximum
Temperature range 5ºC to 45ºC operating
0ºC to 50ºC non-operating
Relative humidity 10% to 85% non condensing
Safety Approvals CE mark
EN55022 (EMI) and EN200-82-1 (EMC)
Post Office Directive 243/91
FCC Class A/B
VDE 0871
Disk Drive Specifications
Optical Disk Cartridge : ISO Standard 3.5 inch Optical Disk Cartridge
128MB media 230MB media
Form Factor : 3.5 inch, × 1 inch high
Interface : SCSI-2 (single ended)
Total storage capacity :
Unformatted : 181 MB 325 MB
Formatted : 128 MB 230 MB
Storage capacity/track :
Unformatted : 18,100 bytes 18,100 bytes logical
Formatted : 12,800 bytes 12,800 bytes logical
Storage capacity/sector :
Unformatted : 724 bytes 724 bytes
Formatted : 512 bytes 512 bytes
User tracks/side : 10,000 17,940 logical
The number of user tracks indicates the maximum user zone
which includes the spare and slipping areas.
Alternate sectors per side : >= 1,024 >= 1,025
Sectors per track : 25 25 logical
Data Transfer Rate :
Disk drive : 1.1MB/sec (maximum) 1.3 to 2.1MB/sec max
Asynchronous mode : 3.3MB/sec maximum 3.3MB/sec maximum
Synchronous mode : 5.0MB/sec maximum 5.0MB/sec maximum
Seek time :
Short stroke (64 tracks) : Less than 18 milliseconds
1/3 stroke : Less than 35 milliseconds
Full stroke : Less than 70 milliseconds
Each seek time specified here is the mathematical average of
100 seeks and does not include either SCSI overhead or track
address recognition time.
Average latency time 8.3 milliseconds
Rotational speed : 3,600 RPM ±0.05% (ZCAV)
Heads : One head on the positioner
Position type : Linear voice coil motor
Servo tracking method : ISO continuous servo method
Recording density : 24,400 bits per inch 29,300 bits per inch
15,875 tracks per inch 18,256 tracks per inch
Loading time : 5 seconds
This time is from when the optical disk cartridge is
inserted to the time when the drive is ready.
Unloading time : 3.4 seconds
This time is from when the eject button is pressed or the
eject command is issued to when the optical cartridge is
ejected.
Load/Unload life : 50,000 operations
Dimensions :
Width x Height x Depth : 101.6mm x 25.4mm x 146.0mm (no panel)
101.6mm x 25.4mm x 150.0mm (single panel)
101.6mm x 25.4mm x 160.0mm (double panel)
Data Buffer 237 KB buffer with read ahead cache
Weight 0.47kg (without bezel)
MTBF 40,000 power on hours or more
Power requirements :
Power consumption : 5.0W ready
7.0W random seek, read, or write
3.5W sleep
Input voltage : Single +5VDC ±5%, 1.4A (2.0A max)