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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