NEC POWERMATE PROFESSIONAL 9000 - SERVICE, Руководство по обслуживанию, Страница: 80 / 296

1-62 Technical Information
Table 1-39 Tape Backup Unit Specifications
Feature Specification
Recording Media 900 Oe 740’ Travan TR-4
Cartridge Size 3.2 in. x 2.4 in. x 0.4 in. (81 mm x 61 mm)
Data Density 67,733 bpi
Tracks 72 data tracks, one directory track
Synchronous Transfer Rate
(Burst) 5 MBytes/sec maximum
Asynchronous Transfer Rate
(Burst) 5 MBytes/sec maximum
Voltage Tolerance +5V +/-5%; +12V +/-10%
Temperature
Operating: 5
°
to 45
°
Non-operating: -40
°
to 65
°
Humidity Operating: 20% to 80% (non-condensing)
Non-operating: 5% to 95% (non-condensing)
Altitude Operating: -1,000 to 15,000 feet
Non-operating: -1,000 to 50,000 feet
Table 1-40 Zip Drive Specifications
Feature Specification
Zip Drive Iomega Zip 100 ATA Drive
Performance
Sustained Data Transfer Rate Up to 11.2 Mbits/sec
Burst Transfer Rate Up to 26.7 Mbits/sec
Minimum Seek 4.0 ms
Average Seek 29.0 ms
Maximum Seek 55.0 ms
Average Latency 10.2 ms
Spindle Speed 2941 rpm
Track-to-Track Access Time 5.0 ms
Average Head Switch Time 8.0 ms
Head Reload Time 200.0 ms
Average Start/Stop Time 3/2 seconds
General Specifications
Removable Zip Cartridge
Capacity 100 MB formatted