derrick@cs.athabascau.ca (Derrick Rowlandson) (02/20/90)
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@cs.AthabascaU.CA