| Ultrastar
10K300
Jumper settings |
Ultrastar 10K300 Ultra320 models have one jumper block, C3,
which is as shown below. 68-pin models also have an auxiliary connector,
shown below as C4. |
Note: Ultrastar 10K300 80-pin SCSI and FC-AL models do not have jumper settings. |
68-pin Wide LVD |
Jumpers | SCSI cable | Terminators |
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68-pin Wide LVD |
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Note: In most cases the jumpers will be set using the C3 "Option
Jumper Connector." Either the option jumper connector (C3) or the
68-pin auxiliary connector can be used but do not use both.
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Jumpers
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SCSI Bus Cable |
SE mode:
The maximum cumulative cable length when using a single-ended
transceiver should be 3 meters. Implementations that limit the
transfer rate to a maximum of 5 megabyte transfers per second may
extend the cumulative cable length to 6 meters. (ANSI SCSI-3
X3T10/855D).
The
maximum cumulative signal path between terminators shall be 3.0
meters when using up to 4 maximum capacitance (25pF) devices. The
maximum cumulative signal path length between terminators shall be
1.5 meters when using from five to eight maximum capacitance
devices. (ANSI SCSI-3 FAST-20 X3T10/1071D). |
LVD mode:
The maximum cumulative cable length when using an LVD transceiver
must comply to the limit, which is defined by ANSI SCSI-3
X3T10/855D.
The maximum cumulative signal path between terminators shall be 12
meters when using up to 4 maximum capacitance (25pF) devices.
The
maximum cumulative signal path length between terminators shall be
12 meters when using from five to eight maximum capacitance devices.
(ANSI SCSI-3 FAST-20 X3T10/1071D).
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Terminators |
Onboard SCSI active termination is not supported. The using system
is responsible for making sure that all required signals are
terminated at both ends of the bus cable. |
Note:
LVD versions cannot provide bus termination. However, 68 pin DPSS
versions can be jumpered to provide Terminator Power. |
The following are 68 pin model terminator examples: |
Data Mate
DM2750-01-LVD (LVD only)
Amphenol 497040001 (Multimode)
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