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40 PCM-3420 User's Manual
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Adaptec EZ-SCSI
A user-friendly software program that automatically installs SCSI
devices such as fixed disks and CD-ROM drives on a PC.
Adaptec EZ-SCSI copies the required software programs to the
PC’s fixed disk and edits the configuration files so the host
adapter can access the devices.
Active Termination
An active terminator actually has one or more voltage regulators
to produce the termination voltage, rather than using resistor
voltage dividers.
This is a passive terminator:
/\/\/\/ /\/\/\/ GND
SCSI signal
Notice that the termination voltage is varies with the voltage on
the TERMPWR line. One voltage divider (two resistors) is used
for each SCSI signal.
An active terminator looks more like this (supply filter caps
omitted):