DC-390 Series SCSI Adapter Quick Reference Guide (rev 4.02)
Tekram Technology Co., Ltd
4
The following table summarizes the maximum allowable cable lengths for the DC-390
series:
Model # SCSI Type Data Xfer Rate Max. # of
Devices
Max. Cable Length
DC-390 SCSI-2 10 MB/Sec 8 3 meters (9.8 feet)
DC-390U/F Ultra SCSI 20/40 MB/Sec 4 3meters (9.8 feet)
DC-390U/F Ultra SCSI 20/40 MB/Sec 8 1.5 meters (4.9 feet)
* If there are internal devices connected, the internal cable length must be included in
the measurement of SCSI bus length.
• If the mainboard of your system supports Symbios SCSI, it is recommended that you
disable it. Consult your mainboard’s user’s manual for details.
Checking the Terminators on the SCSI Bus
In order to stabilize the SCSI bus, only two sets of terminators can be installed - one at each
end of the SCSI bus. The DC-390 series itself is equipped with Active Terminators that
automatically switch from Enabled to Disabled or vice versa by scanning the devices
connected on the SCSI bus. So, manual termination adjustments are not required.
If you are not sure about how to set the terminators, please refer to the User’s Manual for
details.
DRIVER INSTALLATION
Easy DOS ASPI Driver Installation
1. Insert Disk 1.
2. Under DOS, type A:\DOSINST then press <Enter>. This will update the
CONFIG.SYS and AUTOEXEC. BAT files automatically.
Further information about drivers and step-by-step installation procedures can be found in
the User’s Manual.
Other Driver Installation
For Driver installation of other O.S. (especially for Windows 95, NT, and SCO OpenServer
5.0.4), please refer to the User’s Manual.
* For the driver and BIOS updates, please visit our website at
http://www.tekram.com, or ftp.tekram.com for Linux and FreeBSD support.