CompuServe Messages

>I was reading from the A2091's manual, which shows in a diagram the >resistors on the bottom of the on-board Quantum ProDrive. So, yes, >the terminator resistors are "on the card," but only via the drive. >At least in the case of the A2091. I took apart my Amiga today, and had a look at the 2091. There are terminator resistor packs on the 2091 card too! Look under the short 50 pin SCSI cable, they are there right next to the 50 pin socket on the board. It's those three long enamel coated packages with about a dozen pins in a single row coming out of each of them. They are in addition to the hard drive and floptical terminators, meaning that you can probably do without the terminators on the internal hard drive. The general termination idea is to have one set of terminators near each end of the whole SCSI bus to stop electrical signal reflections off the ends of the cable. Of course, the practical approach is to add and remove terminators until it works.