24 | Barracuda 36 Installation Guide, Rev. B | ||||
Table 4a. Cable characteristics for |
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circuits |
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| Maximum distance between | |||
Number of attached SCSI |
| terminators (meters) [1] [3] | |||
devices |
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1 to 4 maximum capacitance |
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(25 pF) SCSI devices |
| 6 | 3 | 3 | N/A |
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5 to 8 maximum capacitance |
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(25 pF) SCSI devices |
| 6 | 3 | 1.5 | N/A |
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9 to 16 maximum capacitance |
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(25 pF) SCSI devices |
| 6 | 3 | [2] | N/A |
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[1]For environments where all elements of the bus (cables, device inter- faces, environmental noise and other parameters) are controlled to be better than minimally required, it may be possible to extend the path length and device count.
[2]Extending the device count beyond eight requires specification con- trol beyond the minimum specified in the ANSI T10/1142D docu- ment. It is recommended that the devices be uniformly spaced between terminators with the end devices located as close as possi- ble to the terminators.
[3]Values specified by data rate shall apply even if a slower data rate is negotiated.