Hawk 2LP Family Installation Guide, Rev. B | 19 |
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Bus termination
Model "N" drives have an active terminator IC that is permanently installed, but can be enabled or disabled by a jumper plug. See jumper in Figure 3a. If you are installing a single drive, the terminator IC must remain enabled. If you are installing multiple hard disc drives, disable the termination IC on all the drives but the one connected to the end of the SCSI I/O cable.
Model numbers that end in "ND" have differential I/O circuits. These drives have no provisions for termina- tors on the drive PCB. The system manufacturer must provide some external means of I/O line termination. The "ND" model drives can provide power for external terminators if the TP jumper is installed on the last position on the right end of J2. See Figure 3a.
