SCSI Connections
SCSI Bus Differences
SCSI Bus Differences
A Small Computer Systems Interface (SCSI) bus is an IEEE standard bus for connecting your workstation to internal and external devices (SCSI devices) running at different speeds, singly or in combination. Examples of these SCSI devices are
There are two types of SCSI buses available with this workstation - a single- ended SCSI bus, and a fast, wide differential SCSI bus. Table 16 shows the specification differences between these SCSI buses, and Table 17 shows the SCSI addresses, ID numbers, and arbitration priorities for each.
CAUTION:Do not mix
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Table 16 |
| SCSI Bus Differences |
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| Data Bus | Maximum | Maximum |
| Device | Controller |
| Transfer Rate |
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| Physical | Embedded | |||
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| Width | Addresses* | Cable Length |
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| Location | or Plugable | |||
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| 8 bits | 8 | 6.0 meters |
| Internal and | Embedded |
| Up to 5 Mbytes |
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| (19.6 feet) |
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| Fast, Wide |
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| Differential |
| 16 bits | 16 | 25 meters |
| Internal | Embedded |
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| Up to 20 Mbytes |
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| (82 feet) |
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| external |
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| * Address 7 is reserved for host controller use on both buses. |
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