Hp plotter

[Tony Duell]

> 
> Tony, thanks for the help. It's more than I knew before.=20
> I can be persistent, in fact a friend of mine is looking up=20
> "communications analiser" as we speak. He too uses an

A communications analyser (sometimes called a comms analyser and closely 
related to a protocol analyser) is a piece of test equipment that 
connects between 2 devices and displays the data (and other things, like 
the states of control lines) between them. It's a rather specialised 
unit, not the sort of thing you'll have lying around and no know it.

Be warned that some people on classiccmp have very unusual test gear :-)

-tony