PDP 11/03
Noel Chiappa
jnc at mercury.lcs.mit.edu
Mon Nov 9 17:05:55 CST 2015
> From: Johnny Billquist
> I doubt the -YA makes any significant difference here.
> ...
> Note that a -YA normally means it's just a board with a newer revision.
> It do not normally means any change in functionality, except perhaps
> some improvement. But in general totally compatible.
This might be the exception to that rule! Note the description "extra wires to
bring out clock & 110/300 speed change"; if one could in fact change the baud
rate _off the card_, there's probably some special magic in the interface (and
thus the cable). I suggest consulting 11/780 manuals to see how it was used.
Noel
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