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Quantum 'Tempest' TM 1280 A
Specification
| Apricot Part Number |
PT15722131 |
| Access Times |
Single Track Seek |
3.0 msec |
| Average Seek |
12 msec |
| Latency |
6.67 msec |
| Power Up Time |
11.5 seconds |
| Data Transfer Rate |
Maximum |
11.25 MB/sec |
| Minimum |
4.22 MB/sec |
| Drive Characteristics |
Format |
Physical |
Logical |
| Cylinders |
|
|
| R/W Heads |
2 |
|
| Sector/Track |
110 to 216 |
|
| Disks |
1 |
| Encoding |
16/17 PRML |
| Rotational Speed |
4,500 rpm |
| Track Density |
6,775 tpi |
| Buffer Size |
128 KB |
| Reliability |
MTBF |
400,000 POH |
Dimensions
Height |
1.0 in |
25.4 mm |
Width |
4.0 in |
101.6 mm |
Depth |
5.75 in |
146.2 mm |
Weight |
0.8 lb |
0.36 Kg |
Environment
|
Non Operating |
Operating |
| Temperature |
-40°C to 65°C |
0°C to 55°C |
| Humidity |
5% to 95% |
10% to 90% |
| Altitude |
0 to 40,000 ft |
0 to 10,000 ft |
| Vibration |
2.0 G |
1.0 G (No Data Loss) |
| Shock |
70 G |
10 G (1 soft error/shock) |
| Acoustics |
Seeking Random |
30 dBa (1 Metre) |
| Power |
+5V ± 5% |
+12V ± 10% |
Mode of Operation |
Typical Average Current
(mA rms) |
Typical Average
Power (Watts) |
+12V |
+5V |
| Startup |
1230 |
460 |
|
| Read/Write/Seek |
209 |
471 |
4.75 W |
| Standby/Sleep |
|
|
1.1 W |
Jumper Settings
CS |
DS |
SP |
Description
|
Off |
Off |
Off |
Slave Drive |
Off |
On |
Off |
Master Drive |
|
