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Are all patch bays created equal?

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Mike Rivers

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Are all patch bays created equal?

In article writes:

I believe they are brought out to the back, but I could be wrong. I'm
a drummer...what are the odds that I'd be confused....

I'm not that interested myself. I have 3 or 4 1/4" long frame
patchbays around here. I really could use some more patch points, but
I'd have to remove something from the rack in order to make room for
another bay, so I'm making do by making lazy.

I only asked about the normalling because many long frame patchbays
are built so that they're permanently full-normalled. That's good for
the telephone company and if you're using them to patch microphone
lines (which I don't really recommend as a rule), but not very useful
for conventional control room setups. It would be difficult to show in
a photograph unless you knew what it was that you were looking at
because it's kind of dark back there where you need to see.

Typically the sleeve contact is common to both jacks in the pair, and
there are two terminals (tip and ring) for each jack so that's five
terminals per jack pair, not counting the normals. If that's all it
has, then either it's normalled with fixed jumpers (which almost
certainly means full normalled - I've enver seen one fixed-wired as
half normalled) or there are no normalling contacts.

If the normalling contacts are brought out to the back, then there
should be a total of nine tabs per jack pair.

--
I'm really Mike Rivers - )

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