It doesn't help that these two different roles
differ in their acronym
by only a single letter that sounds almost identical when pronounced
out.
'Charlie' doesn't sound a bit like 'Tango' to my ears...
Going very off-topic., the one I find worry is that (in the UK, at
least), medical doctors use 'hypo-' to mean 'too low' and 'hyper-'
to
mean 'too high'. Those do sound very similar, and the consequences of
getting it wrong are a lot worse than having to re-wire a DB25...
-tony