On Fri, Jan 29, 2016 at 3:36 PM, Spiro Trikaliotis <email@example.com> wrote: > I remember two resistor packs on my SCSI drives, but I always thought > this was because there were more signal lines than they could be handled > by one resistor pack. > > Can anyone confirm that SCSI used two resistor packs, one to ground and > one to Vcc, with different resistants? I remember 3 SIPs in my drives and since I don't have any at hand to test this is from memory, but they were special resistors with a Vcc and GND on each end and the middle pins were pulled up with 220 ohms and pulled down with 330 ohms in each SIP, not one SIP for pullup and one SIP for pulldown. I still have a baggie of them since they are specifically for SCSI termination. -ethan Message was sent through the cbm-hackers mailing listReceived on 2016-01-29 22:00:10
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