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on 2/21/2000 20:36, Steve Jacobson at email@example.com wrote: > > The rule for scsi is that you can mix SCSI-1, SCSI-2, and SCSI-3, but when > you do, the bus speed defaults to the slowest device. That is, if you > intermix SCSI-1 and SCSI-2 devices on the same bus, the SCSI-2 speed is lost > and the bus will only go up to 10 MB/s. > The comments above are incorrect on a couple of points: 1) SCSI-1, 2 and 3 can share a bus, and the transactions will be completed at the maximum rates assuming the initiator and the target both can sustain this rate. Ultra2 (LVD) will run in ultra mode if legacy devices are attached. 2) SCSI-1 is 5Mb/s, not 10. WRT to the scanner, it's certainly a SCSI-2 device, with 10MB/s transfers. It probably has either a SCSI-3 connector (HD50 which it two rows of fine pitch pins with a clip socket) or DB25, which is the older SCSI-2 connector with a larger pins and screws. On the DB25, data grounds are coalesced onto a single pin so that all the lines fit. Wire - Please turn off HTML mail features. Keep quoted material short. Use accurate subject lines. http://www.leben.com/lists for instructions.
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