Last Device
on Chain–
Termination
Enabled
These Devices Do Not
End Chain–
Termination
Disabled
Host Adapter
External Board Connector– Plugging in automatically enables termination
2.3Terminating the SCSI Bus
The devices making up the SCSI bus are connected serially (chained together) with SCSI cables. The first and last physical SCSI devices connected on the ends of the SCSI bus must have their terminators active. All other SCSI devices on the bus must have their terminators removed or disabled. Refer to the peripheral manufacturer’s instructions and to the user’s manual for your computer for information on how to identify the terminator setting of each device and how to change it.
To utilize Ultra160 SCSI performance, you must only have LVD devices on the bus. Do not mix any SE devices with LVD devices or the entire bus will drop to SE speed, limiting bus performance to Ultra SCSI. LVD peripheral devices are normally terminated with external terminators, but are sometimes set with jumpers or with a switch on the peripheral.
Detailed Host Adapter Installation |