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ADVANCED LOGIC RESEARCH, INC. RLL FLOPPY/HARD DISK CONTROLLER
| Card Type | Hard drive controller |
| Hard Drives supported | Two ST-506/412(RLL) drives |
| Floppy drives supported | Two 360KB, 720KB, 1.2MB, 1.44MB |
| Data Bus | 16-bit ISA |
| Card Size | Three-quarter length, full-height |
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| CONNECTIONS |
| Function | Label | Function | Label |
| 34-pin cable connector - floppy drive | J1 | 20-pin data cable connector - drive 1 | J4 |
| 34-pin control cable connector - hard drive | J2 | 4-pin connector - drive active LED | J5 |
| 20-pin data cable connector - drive 0 | J3 | | |
| USER CONFIGURABLE SETTINGS |
| Function | Label | Position |
| » | Factory configured - do not alter | W1 | Open |
| » | Primary port address is 1F0h, 3F2h | W2 | Open |
| | Unidentified | W2 | Closed |
| » | Secondary port address is 170h, 372h | W3 | Open |
| | Unidentified | W3 | Closed |
| » | Initial data Rate control 500-KHZ enabled | W4 | Open |
| | Unidentified | W4 | Closed |
| » | Hardware select mode enabled | W5 | Closed |
| | Hardware select mode disabled | W5 | Open |
| » | Factory configured - do not alter | W6 | Pins 1 & 2 open, 3 & 4, 5 & 6 closed |
| » | Floppy precompensation control - unidentified | W7 | Open |
| | Unidentified | W7 | Closed |
| » | 16K PROM enabled | W8 | Closed |
| | Unidentified | W8 | Open |
| » | PROM address is C8000h | W9 | Open |
| | Unidentified | W9 | Closed |
| » | PROM enabled | W10 | Closed |
| | PROM disabled | W10 | Open |
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