SCSI help requested
Derrick Rowlandson
derrick at cs.athabascau.ca
Tue Feb 20 14:24:40 AEST 1990
After spending a couple hours trying to cable up some SCSI peripherals to
a SUN i would like to pose the following questions.
A SCSI bus consists of a 50 pin bus running from a SCSI controller. Bus
length can be up to 15 feet. On this bus you can have up to 8 devices.
Connectors for getting on the bus come in many different flavors,
(Centronics style, AMP-socket connectors, D style connector) Some SCSI
peripherals provide a bus extention to allow the bus to continue on to the
next device. This is simply a parallel extention of the bus.
So far so good?
Where must a SCSI bus be terminated? Only once, and at the last device on
the bus would seem to be the logical choise.
When taping into a SCSI bus, the tap or stub length can only be a few
inches in length i guess? But can you get away with a longer stub length
if you also terminate that specific device?
confirmation/correction/variations of the above would be greatly
appreciated, and any other cabling/hardware tips also welcome. (a tip on a
good hardware reference book also welcome).
derrick at cs.AthabascaU.CA
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