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C-11
This section helps you to determine the total length of the narrow,
single-ended SCSI bus, the fast, wide differential SCSI bus and the
ultra, wide–SE SCSI bus.
Narrow, Single-Ended SCSI Bus Length
Follow these instructions to calculate your total narrow, single-ended
SCSI bus length (including the system unit, external SCSI devices,
and SCSI interconnect cables) using Table C–6:
1. Find all of your external NSE SCSI devices in the first column.
In the third column, write the NSE SCSI bus lengths (from the
second column) that correspond to your devices.
NOTICE: In the third column, the length for the System
Unit is already listed. This number must always
be used for the system unit.
2. In the fourth column, write down the lengths of the NSE SCSI
interconnect cables you are using for your installation. (Cable
lengths are listed in subsection “Cables” in the section on “SCSI
Restrictions.”)
3. Add up all of the numbers in the third column and write that
number on the subtotal line at the bottom of the column. Do the
same for the fourth column.
4. Add the subtotals together and write the total in the Total NSE
SCSI Bus Length box.
NOTICE: The total length of the narrow, single-ended
standard SCSI bus must not exceed 6 meters
(19.6 feet). If the number you write for Total
Determining
SCSI Bus
Length