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AHA-1540A
The Adaptec AHA-1540A 16-bit AT Bus to SCSI Bus Host Adapter has been designed to operate as shipped in the majority of AT class computers.
Small image of the AHA-1540A
DownloadsDocumentationTechnical Specifications

Note: Only drivers that are not included or embedded within a supported operating system are listed below. To see a complete list of supported operating systems see the Product Specifications

Select your operating system or software below

Bios Updates and Other Downloadable Files

Bios Updates and Other Downloads

IBM OS

IBM OS-2

Microsoft

Microsoft Windows 95

Novell NetWare

Novell NetWare Downloads

Installing Drivers or Software
cd install netware 401 (html 69 kb)
unix driver disk conversion (html 69 kb)
loading adaptec dsk drivers (html 71 kb)
netware 3.12 cd install (html 68 kb)
installation tips for os/2 1.3 (html 69 kb)
Policies
obsolete product info (html 69 kb)
Product Documentation
user manual for the aha-1540a/1542a (pdf 1 mb)
Use Your Product
scsi terms explained (html 77 kb)
sense codes described (html 96 kb)
Supported Operating Systems
Microsoft MS-DOS 3.x
Microsoft MS-DOS 4.x
Microsoft MS-DOS 5.x
Microsoft Windows 3.0
Microsoft Windows 3.10
Number of devices
Up to 7 devices under DOS 5.0 and above

Bus System Interface Type
ISA 16 Bit
External Connectors
50-pin Low Density
Internal Connectors
50-pin
Data Transfer Rate
10 MB/sec
Warranty
5 years

Device Protocol

SCSI-1,
SCSI-2

Advanced SCSI Features

Advanced SCSI Programming Interface (ASPI) compliant
Multithreaded I/O
Scatter/gather
Disconnect/reconnect
Plug-and-Play SCSI
Synchronous and asynchronous data transfer

SCSI Termination

Single-ended, active, programmable via SCSISelect

Hard Disk Capacity

Up to 8 GBytes per disk

Board Dimensions

6.3 inches (16.5 cm) L
4.5 inches (11.4 cm) H

Power Consumption

5.0V +/- 0.25V @ 0.51 amps
excluding terminator power

Operating Characteristics

0°C to 55°C (32°F to 131°F) 10% to 90%, non condensing Relative Humidity

Storage Characteristics

-55°C to 85°C (-40°F to 167°F)

MTBF (mean time between failures, Bellcore)

376,130 hours

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