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SCSI Connections
Determining SCSI Bus Length
Fast, Wide Differential SCSI Bus Length
Follow these instructions to calculate your total bus length for the fast, wide
differential SCSI bus on your system, using Table 25.
1 List all of your internal fast, wide differential SCSI devices in the first column.
2 In the third column, write the lengths of the internal fast, wide differential SCSI
bus that correspond to your devices.
3 In the fourth column, write down the lengths of the fast, wide differential SCSI
interconnect cables you are using for your installation. (Cable lengths are listed
in subsection “Cables” in the section on “SCSI Restrictions.”)
4 Add all of the numbers in the third column and write the sum on the subtotal line
at the bottom of the column. Do the same for the fourth column.
5 Add the subtotals together and write the total on the Total Fast, Wide Differential
SCSI Bus Length line.
NOTICE: The total length of thefast, wide differentila SCSI bus must not exceed 25
meters (82 feet). If the number you write for Total Fast, Wide Differential
SCSI Bus Length is greater than 25 meters, try configuring your
installation with shorter cables.