@508C.ADF Trantor T228 MicroChannel SCSI Host Adapter
SCSIWorks version 1.3 (Disk1) For Trantor products. Includes DOS drivers
SCSIWorks version 1.3 (Disk2) For Trantor products. Includes DOS drivers
ASPI Managers for Trantor products Drivers for DOS and Windows 3.x
Upgrade for Trantor ASPI Managers Upgrades existing files to EZ-SCSI 3.1 versions
TRAN_NT.EXE WinNT 3.1/3.5 drivers for T160/260, T338, T348, and T358
TRAN_OS2.EXE OS/2 v2.x drivers for T128/228, T130b, T160/260, T338, T348, and T358
OS/2 v3.0 WARP BETA will require the updated OS/2 drivers for Trantor SCSI adapters available
from IBM to properly register with the new WARP Resource Manager.
Messages: for the T130b, T128, T228, T160, T260
Trantor T228 SCSI Adapter
Comments and image are from William R. Walsh (original archived HERE).
T228 SCSI Host Adapter
J1 Internal 50 pin SCSI connector
P1 DB25 External SCSI connector
RN 1,2,3 Removable internal terminators
U2 SCSI BIOS? TSROM V1.12
U22 Zilog Z053801 SCSI IC
The adapter consists mainly of 74xx logic chips and PALs.
This looks like a card that came with a bundled CD-ROM drive from NEC. Mine
has “NEC-Assembled In USA” printed on the board. Someone has written “NEC
CD-ROM” near the external DB25 port. It has sockets for a ROM, probably a
boot-BIOS. The sockets on mine are empty.
I don't think this would be a terribly high performance adapter. However, it
is simple and can use the very inexpensive DB25 (Apple) SCSI cables. There is
also a “standard” 50 pin internal connector. If you don't have the matching
NEC CD-ROM, I see no reason why this couldn't be used as a secondary adapter to
drive any other CD-ROM, scanner or tape device with reasonable speed. I am not
sure what drivers would be required to make this adapter work. I've never seen
a Zilog SCSI chipset...
Zilog Z053801 SCSI IC, 40 pin P-DIP version of Z5380, 1.5MB/sec.
Zilog Z5380 Product Specification
ADF Sections for @508c "Trantor T228 MicroChannel SCSI Host Adapter"
The Trantor T228 is memory mapped. It
single 8k block of memory in the address space normally
used by adapter
c8000h - c9fffh, dc000h - ddfffh, d8000h - d9fffh
When used with direct access devices (i.e.,
disk) the T228 can be used to boot the computer in the
absense of another
bootable hard disk. This feature is only needed, and
only works when there
is no other bootable hard disk in the computer.
When used with multitasking systems such as
Xenix, the T228 needs a single IRQ channel. The
T228 does not use interrupts under MS-DOS.
3, 5, 7, 10, 12, 14, 15