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Ultra SCSI (or SCSI-3), is the cable of choice for peripherals including the Iomega zip drive. It includes specifications for a single-ended as well as a differential bus style. The single-ended is similar to Fast SCSI-2, except it accommodates addressing up to 32 devices over a 16 bit single cable bus. SCSI-3 also increases data throughput up to 20 Mbps in single-ended applications.
Single-ended SCSI-3 is limited to 4 devices over 3 meters or 8 devices over 1.5 meters.
Differential SCSI refers to a bus configuration using two wires per signal, with the signal being derived by the voltage difference between the two wires. This approach effectively eliminates noise on the SCSI bus and allows bus length to increase up to 25 meters.
Connector 1: Micro-Density 68 Male
Connector 2: Centronics 50 Male
Single-ended SCSI-3 is limited to 4 devices over 3 meters or 8 devices over 1.5 meters.
Differential SCSI refers to a bus configuration using two wires per signal, with the signal being derived by the voltage difference between the two wires. This approach effectively eliminates noise on the SCSI bus and allows bus length to increase up to 25 meters.
Connector 1: Micro-Density 68 Male
Connector 2: Centronics 50 Male
