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Basics Ultra Wide SCSI Card - 21
• SCSI interface: SCSI-1, SCSI-2, SCSI-3, Ultra SCSI
• Electrical signals: Single-ended versions
• Extensive device support: Up to 105 Through Logical
Unit Numbers (LUN’s) (Wide and Narrow devices)
Cable Length Limits
When using Ultra SCSI single-ended devices, you can connect
up to 8 devices if the total cable length is no longer than 1.5
meters (about 4.5 feet). If total cable length is between 1.5
meters and 3.0 meters (about 9 feet), you can connect only
4 SCSI devices. Error-free operation is not guaranteed if
you exceed these limits.
When not using Ultra SCSI devices, SCSI specification limits
total bus cable length for single-ended SCSI to 6 meters or
approximately 18 feet (this is a combined figure of both
internal and external cable lengths). You should keep cable