C2502-3A.SYS is an ASPI manager/SCSI driver for the ISA switchless interface
adapter card (C2502/3A) supplied with the HP ScanJet IIcx and IIp scanners
(those distributed after 11/93).  This driver is intended to be a replacement
for the HP supplied MINI400I.SYS CAM manager/SCSI driver.  Memory consumption
is only 2k (compared to nearly 20k for the HP/NCR drivers).  Configuration
is automatic (there are no command line options).  No IRQ, DMA, or adapter
ROM space is used.  Measured performance is slightly higher than the HP/NCR
drivers.  Given the appropriate ASPI device drivers, other external SCSI
devices such as CD-ROM drives, tape backup units, hard disk drives, etc.
should be usable in addition to the scanner.

Each device must be set to a unique SCSI ID, with SCSI ID 7 reserved for the
adapter card.  Only the last device in the SCSI chain should be terminated.

Using Adaptec's EZ-SCSI or Corel's CorelSCSI to add CD-ROM and hard disk
support, for example, would require CONFIG.SYS and AUTOEXEC.BAT entries such
as:

CONFIG.SYS
==========

(modify drive and/or path names, as necessary)

rem DEVICE = C:\DESKSCAN\MINI400I.SYS
DEVICE = C:\C2502-3A.SYS
DEVICE = C:\DESKSCAN\SJIIX.SYS
DEVICE = C:\ASPICD.SYS /D:MSCD001     (CD-ROM using EZ-SCSI)
DEVICE = C:\CUNI_ASP.SYS /D:MSCD001   (CD-ROM using CorelSCSI)
DEVICE = C:\ASPIDISK.SYS              (Hard Disk using EZ-SCSI)

AUTOEXEC.BAT
============

MSCDEX /D:MSCD001


If operation under Windows is desired, the HP supplied WIN400I.386 driver
must be disabled by removing or commenting out the following entry in the
SYSTEM.INI file:

SYSTEM.INI
==========

[386enh]

; device=C:\DESKSCAN\WIN400I.386   (commented out)


AUTHOR: Ronald E. Raikes
   CIS: 73170,134
