No, the Macintosh Portable does not support SCSI Disk Mode as is supported on most PowerBook computers.
For many reasons, you should not connect two Macintosh computers via SCSI cables, with the exception of PowerBook computers which support SCSI Disk Mode. This includes all PowerBook models except for the PowerBook 140, 145, 145B, 150, and 170.
The most important reason is that you would then have two devices (the computers, and often the internal drive) on the bus with the same SCSI ID. Further, a straight-through cable would connect outputs to outputs and inputs to inputs, which would bring communications to a halt.
Article Change History:
16 Mar 1995 - Updated list of computers which support SCSI Disk Mode.
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