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Home Forums 68kMLA (Question) 1990 Maxtor Terminator Resistors — #5
Post #5 by trag
Source Forum68kMLA
CategoryHardware
Post DateTue, 13 Jan 2015 - 22:49
Original URLhttps://68kmla.org/bb/threads/question-1990-maxtor-terminator-resistors.1040/
Post
If it's old enough to use Resistor SIPP packs, then you want the 220/330 networks.   The 110ohm resistor packs won't provide good termination.     When one measures the resistance into the 220/330 networks, the combination of series and parallel resistances show approximately 110 ohm, which has a lot to do with why folks think that will work, but it's not a good termination solution.

This is the kind of thing you need:

http://www.ebay.com/itm/230885118855?_trksid=p2060778.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

But you probably need the 4611X series, since you said you have 11 pins.

There's a thread around here somewhere where I posted a much more detailed discussion on this topic.   It's the one where I go on for a while about the Bourne 4610 series vs. some other series and related matters.

Look at this article:

https://www.bourns.com/pdfs/scsitermap.pdf

mp.ls