Tekram Technology Network Card DC 315 Series User Manual

DC-315 Series  
PCI SCSI Host Adapters  
User’s Manual  
Manual Rev: 3.00  
Date: Jan. 99  
Model  
Protocol  
Mode  
SCSI  
Max Xfer  
Max  
Number  
Width  
Rate (MB/S)  
Devices  
DC-315  
SCSI-3  
SCSI-3  
SE  
SE  
8-bit  
8-bit  
20  
20  
7
7
DC-315U  
U: Ultra SCSI (Narrow)  
* All other product names are trademarks or copyrights of their respective owners.  
1
DC-315 Series User’s Manual  
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2.1 Board Layout  
The following figures illustrate the jumper and connector locations for the DC-315 Series  
PCI SCSI Host Adapters:  
DC-315  
Ultra SCSI-3 adapter  
DC-315U  
Ultra SCSI-3 adapter  
3
DC-315 Series User’s Manual  
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2.2 Setting the Jumpers  
DC-315U:  
JP1 (LED)  
SCSI Device Activity LED Indicator (JP1)  
JP1 is used to indicate activity of the SCSI devices controlled by the DC-315U adapter, and  
should be connected to the cable leading to the Hard Drive LED on the front panel of your  
computer case.  
2.3 Setting the SCSI IDs  
Each SCSI device attached to the SCSI card, as well as the card itself, must be assigned a  
unique SCSI ID number. SCSI ID 7 is preset to the SCSI card, giving it the highest priority  
on the SCSI bus.  
The SCSI IDs of your peripheral devices are usually set with jumpers or with a switch on the  
peripheral. Refer to the peripheral manufacturer’s manual to determine the ID of each device  
and how to change it.  
2.4 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-315 series 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 adjustment is not required. The following  
explains the terminator configuration of other devices on the SCSI bus:  
Note: There are two types of termination available on SCSI devices, active and passive.  
Active termination is strongly recommended to ensure system integrity, particularly  
when devices with high transfer rates are being used. A SCSI CD-ROM drive usually  
comes with a passive terminator. For proper termination, it is recommended that you  
keep this terminator disabled, i.e. avoid connect the CD-ROM drive at the end of the  
SCSI bus  
3. INSTALLING DEVICE DRIVERS  
You need to install host adapter drivers and other software before you can use the device. For  
more information, see the readme file of the drivers and other software installation  
instructions.  
*
For the driver and BIOS updates, please visit our website at  
4
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