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Recording Parameters
Table 2-1 shows the recording parameters for the EXB-8205,
EXB-8205XL, EXB-8505, and EXB-8505XL. The table includes the
parameters for tape drives writing and reading data in three physical
formats.
Parameter
Tape drives reading and writing in this physical format:
8500/8500c
a
8200c 8200
Tape width 8.00 mm
(0.315 in)
8.00 mm
(0.315 in)
8.00 mm
(0.315 in)
Track length
(data + servo)
b
62.651 mm
(2.47 in.)
62.651 mm
(2.47 in)
71.628 mm
(2.82 in)
Tracks per
revolution
c
211
Track pitch
15.5 µm
(0.000610 in)
31.0 µm
(0.001221 in)
31.0 µm
(0.001221 in)
Track width
15.5 µm
(0.000610 in)
25.0 µm
(0.000984 in)
25.0 µm.
(0.000984 in)
Track density 64.506 trk/mm
(1638.455 trk/in)
32.253 trk/mm
(819.226 trk/in)
32.254 trk/mm
(819.253 trk/in)
Areal recording
density
144.23 Mfc/mm
2
(93.052 Mfc/in
2
)
72.115 Mfc/mm
2
(46.526 Mfc/in
2
)
68.68 Mfc/mm
2
(44.312 Mfc/in
2
)
Drum speed 1831.055 rpm 1831.055 rpm 1922.607 rpm
Tape speed 11.079 mm/sec
(0.436 ips)
11.079 mm/sec
(0.436 ips)
11.633 mm/sec
(0.458 ips)
Track angle 4.9 degrees 4.9 degrees 4.9 degrees
Wrap angle 221 degrees 221 degrees 221 degrees
a EXB-8505 and EXB-8505XL only.
b In 8200c and 8500/8500c formats, servo information is embedded in three places along the length of the track.
In 8200 format, servo information is embedded at the beginning of the track.
c Tracks per revolution is the number of tracks written or read for each revolution of the rotating drum assembly.
Table 2-1 Recording parameters
May 1994 EXB-8205 and EXB-8505 2-11
(Standard and XL)
2 Recording Format