xii C141-E185
FIGURES
page
Figure 1.1 NC model drives outer view.................................................................................................1-6
Figure 1.2 NP model drives outer view .................................................................................................1-6
Figure 1.3 Disk/head configuration........................................................................................................1-7
Figure 1.4 System configuration............................................................................................................1-9
Figure 3.1 Cylinder configuration..........................................................................................................3-2
Figure 3.2 Spare area in cell ..................................................................................................................3-5
Figure 3.3 Alternate cylinder .................................................................................................................3-5
Figure 3.4 Track format .........................................................................................................................3-6
Figure 3.5 Track skew/head skew..........................................................................................................3-7
Figure 3.6 Sector format ........................................................................................................................3-7
Figure 3.7 Alternate block allocation by FORMAT UNIT command .................................................3-13
Figure 3.8 Alternate block allocation by REASSIGN BLOCKS command ........................................3-14
Figure 4.1 NC external dimensions........................................................................................................4-2
Figure 4.2 NP external dimensions ........................................................................................................4-3
Figure 4.3 IDD orientations...................................................................................................................4-4
Figure 4.4 Mounting frame structure .....................................................................................................4-5
Figure 4.5 Limitation of side-mounting .................................................................................................4-5
Figure 4.6 Surface temperature measurement points .............................................................................4-6
Figure 4.7 Service clearance area ..........................................................................................................4-7
Figure 4.8 Spin-up current waveform (+12 VDC) .................................................................................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