Adaptec 1520A User Guide - Page 17

1 w w w w Introduction General Product Information The AHA-1510A/20A Series consists of three host adapter models: s AHA-1510A: ISA-to-SCSI host adapter s AHA-1520A: ISA-to-SCSI host adapter with onboard BIOS s AHA-1522A: ISA-to-SCSI host adapter with onboard BIOS and floppy drive controller Adaptec's AHA-1510A/20A Series host adapters break the price/performance barrier with multitasking ISA-to-SCSI I/O performance. These host adapters greatly enhance the I/O performance of ISA-bus and EISA-bus microcomputers with the much faster SCSI data transfer rates. AHA-1510A/20A Series host adapters provide superior data I/O performance at an affordable price. AHA-1510A/20A Series host adapters excel in single user environments (i.e., stand-alone computers or network nodes) by utilizing the CPU's untapped power to improve system I/O performance. AHA-1510A/20A Series host adapters support up to eight simultaneous I/O tasks and can connect up to 56 devices (7 SCSI targets with 8 logical units per target). AHA-1510A/20A Series host adapters are fully compatible with most SCSI devices and ISA-bus/EISA-bus computers. They fully support SCSI-1 and SCSI-2. AHA-1510A/20A Series host adapters give you access to Adaptec's ASPI (Advanced SCSI Programming Interface) family of software. This family includes device drivers that work with tape, disk, CD-ROM, WORM, and DAT devices and also with operating systems such as DOS, OS/2, UNIX, and NetWare. The ASPI software communicates with the operating system managers through the common ASPI platform. 1-1 AAAAAAAAAAAAAAAAAASPCAAAAAArtuHoiAAArncAAAArtkAAAe-SAAAn1NAAApt5AAAeuD1AAAcmAAA0aAAANtAbeAAAeu:/AAAr2mAAA1:0AAA15bAAAA/1eAAA1rAAA0S8:AAA4/e4AAA90rAAA94i0eAAA1-AAAs08AAAU04AAA,2AAAsR-AAAe0AAAre0'AAAvsAAA.AAAGCAAAuAAAAAAidAAAeAAAAAAAAAEAAACAAAAAANAAAAAADAAAAAAaAAAtAAAeAAA:PAAA1aAAA1AAAg/AAAe2AAA:9AAA1/AAA9-AAA41AAAAAAAAAAAAAAAAAAAA