SCIENTIFIC MICRO SYSTEMS
OMTI 8147
| 
 
  | |
| 
 Data bus:  | 
 16-bit, ISA  | 
| 
 Size:  | 
 Half-length, full-height card  | 
| 
 Hard drive supported:  | 
 Two RLL ST506/412 (RLL) drives  | 
| 
 Floppy drives supported:  | 
 NONE  | 
| 
 CONNECTIONS  | |
| 
 Function  | 
 Location  | 
| 
 4-pin power connector - hard disk  | 
 J2  | 
| 
 20-pin data connector - drive 0  | 
 J3  | 
| 
 20-pin data connector - drive 1  | 
 J4  | 
| 
 34-pin control cable connector  | 
 J5  | 
| 
 4-pin connector - drive active LED  | 
 J6  | 
| 
 HARD DISK ADDRESS  | ||
| 
 Setting  | 
 W1  | 
 W2  | 
| 
 Primary Address  | 
 closed  | 
 open  | 
| 
 Secondary Address  | 
 open  | 
 closed  | 
| 
 READ-RECOVERY SELECT  | |||
| 
 Setting  | 
 W6  | 
 W22  | |
| » | 
 Micro-stepping read-recovery mode - disabeld  | 
 pins 2 & 3 closed  | 
 open  | 
| 
 Micro-stepping read-recovery mode - enabled  | 
 pins 1 & 2 closed  | 
 closed  | |