QBus termination?

[Dwight K. Elvey]

>From: "Paul Koning" <pkoning at equallogic.com>
>
>Re too many terminators -- I still have a copy of an article (in "RSTS
>Professional") that showed an Ethernet with a terminator in the
>middle.  They were showing how to convert thick to thin, and did that
>with a T connector complete with terminator...
>
>     paul


Hi
 I've seen a couple of double disk systems that were working
flaky that had too many terminators. Romoving the excess
made things work better.
 One of the issue with plugging too many things into a
line is that each stub causes reflections, even on a
short buss. There is not only the issue of unterminated
reflections but also non-linear loads caused by Miller feedback.
I would guess this is why the still recommend termination
with a lot of loads connected.
Dwight