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xii C141-E226
FIGURES
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Figure 1.1
NC model drives outer view...............................................................................................1-6
Figure 1.2 NP model drives outer view ...............................................................................................1-6
Figure 1.3 System configuration..........................................................................................................1-8
Figure 3.1
Cylinder configuration........................................................................................................3-2
Figure 3.2 Spare area in cell ................................................................................................................3-4
Figure 3.3 Alternate cylinder ...............................................................................................................3-4
Figure 3.4 Track format.......................................................................................................................3-5
Figure 3.5 Track skew/head skew........................................................................................................3-6
Figure 3.6 Sector format ......................................................................................................................3-6
Figure 3.7 Alternate block allocation by FORMAT UNIT command ...............................................3-12
Figure 3.8 Alternate block allocation by REASSIGN BLOCKS command ......................................3-13
Figure 4.1
NC model dimensions.........................................................................................................4-2
Figure 4.2 NP model dimensions.........................................................................................................4-3
Figure 4.3 HDD orientations................................................................................................................4-4
Figure 4.4 Mounting frame structure ...................................................................................................4-5
Figure 4.5 Limitation of side-mounting ...............................................................................................4-6
Figure 4.6 Surface temperature measurement points ...........................................................................4-7
Figure 4.7 Service clearance area ........................................................................................................4-7
Figure 4.8 Spin-up current waveform (+12V DC)...............................................................................4-8
Figure 4.9 Power on/off sequence (1)..................................................................................................4-8
Figure 4.10 Power on/off sequence (2)..................................................................................................4-9
Figure 4.11 Power on/off sequence (3)..................................................................................................4-9
Figure 4.12 AC noise filter (recommended) ........................................................................................4-11
Figure 4.13 NC connectors location ....................................................................................................4-11
Figure 4.14 SCA2 type 16-bit SCSI connector....................................................................................4-12
Figure 4.15 NP connectors and terminals location ..............................................................................4-13
Figure 4.16 68-pin type 16-bit SCSI interface connector ....................................................................4-14
Figure 4.17 Power supply connector (68-pin type 16-bit SCSI)..........................................................4-14
Figure 4.18 External operator panel connector (CN1).........................................................................4-15
Figure 4.19 External operator panel connector (CN2).........................................................................4-15
Figure 4.20 16-bit SCSI ID external input...........................................................................................4-16