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What is HVD SCSI?

April 26, 2017HVD SCSI

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What is HVD SCSI?

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• Answer; This is the “old” differential SCSI using TTL voltage levels that was originally defined in SCSI-2, offering 25 meter (82 ft) cable length. It was functionally replaced by LVD (Low Voltage Differential) SCSI in the SPI-2 document of SCSI-3 and obsoleted in the SPI-3 document of SCSI-3. HVD and LVD SCSI are not directly compatible but can be interconnected by the use of a SCSI expander called an LVD to HVD Converter.