Adaptec 1520A User Guide - Page 18

Features

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AHA-1510A/20A Series User's Guide Features Fast Data Transfer s 10 MBytes/second synchronous Fast SCSI data rate s 5 MBytes/second synchronous SCSI data rate s 3 MBytes/second data rate on the ISA bus, the highest speed allowed in the Programmed I/O (PIO) environment) s 2 MBytes/second asynchronous SCSI data rate Superior Price/Performance Value s High speed PIO data transfer s Optional high speed DMA data transfer (supported under OS/2 on EISA-bus computers) s Minimal SCSI overhead in single-tasking environments when utilizing disconnect/reconnect capabilities s 16-bit host bus data transfer widths Multitasking s Each host adapter supports up to eight simultaneous I/O tasks when utilizing SCSI-2 Disconnect/Reconnect feature. Connectivity s Each host adapter supports up to seven SCSI devices and up to eight logical units (LUNs) per SCSI device. s Full SCSI Floppy/Floptical® (21 MByte) diskette supports configurations of up to four floppy-type diskettes (up to two standard floppy diskettes). s Supports both synchronous and asynchronous devices: disk drives, tape, CD-ROM, WORM, DAT, etc. Compatibility s SCSI BIOS with boot capability and support for up to two hard disk drives under DOS (AHA-1520A/1522A only) s Supports SCSI hard disks with capacities above 1 GByte 1-2 AAAAAAAAAAAAAAAAAASPCAAAAAArtuHoiAAArncAAAArtkAAAe-SAAAn1NAAApt5AAAeuD1AAAcmAAA0aAAANtAbeAAAeu:/AAAr2mAAA1:0AAA15bAAAA/1eAAA1rAAA0S8:AAA4/e4AAA90rAAA94i0eAAA1-AAAs08AAAU04AAA,2AAAsR-AAAe0AAAre0'AAAvsAAA.AAAGCAAAuAAAAAAidAAAeAAAAAAAAAEAAACAAAAAANAAAAAADAAAAAAaAAAtAAAeAAA:PAAA1aAAA1AAAg/AAAe2AAA:9AAA1/AAA9-AAA42AAAAAAAAAAAAAAAAAAAA

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AHA-1510A/20A Series User’s Guide
AHA-1510A/20A Series User’s Guide
Stock Number: 510400-00, Rev. C
Page: 1-2
Print Spec Number: 491842-00
Current Date: 11/18/94
ECN Date: 11/29/94
Features
Fast Data Transfer
■
10 MBytes/second synchronous Fast SCSI data rate
■
5 MBytes/second synchronous SCSI data rate
■
3 MBytes/second data rate on the ISA bus, the highest speed
allowed in the Programmed I/O (PIO) environment)
■
2 MBytes/second asynchronous SCSI data rate
Superior Price/Performance Value
■
High speed PIO data transfer
■
Optional high speed DMA data transfer (supported under
OS/2 on EISA-bus computers)
■
Minimal SCSI overhead in single-tasking environments when
utilizing disconnect/reconnect capabilities
■
16-bit host bus data transfer widths
Multitasking
■
Each host adapter supports up to eight simultaneous I/O tasks
when utilizing SCSI-2 Disconnect/Reconnect feature.
Connectivity
■
Each host adapter supports up to seven SCSI devices and up to
eight logical units (LUNs) per SCSI device.
■
Full SCSI Floppy/Floptical
®
(21 MByte) diskette supports con-
figurations of up to four floppy-type diskettes (up to two stan-
dard floppy diskettes).
■
Supports both synchronous and asynchronous devices: disk
drives, tape, CD-ROM, WORM, DAT, etc.
Compatibility
■
SCSI BIOS with boot capability and support for up to two hard
disk drives under DOS (AHA-1520A/1522A only)
■
Supports SCSI hard disks with capacities above 1 GByte