Euphonix CS3000 - Half-Normalling

Section 5: The Patchbay
5 - 4 Euphonix CS3000/2000 Operation Manual
Half-Normalling
+
-
Gnd
Hot
Cold
+
-
Gnd
Hot
Cold
Upper Jack
(Output)
Lower Jack
(Input)
Plug takes signal from
the output without
breaking the feed to the
lower socket.
Plug feeds a source into
the lower jack's input
and disconnects the
upper jack feed.
Both the Channel and the Master patch unit are half-normalled. This means
that the upper jacks which carry the output are internally wired (normalled)
down to the lower jacks which always accept an input. If you plug a patch
cable into an upper jack, you will be able to take a parallel (mult) feed from
that output and send it somewhere else without breaking the connection to
the lower jack input. Simply plug the second end of the cable into a lower
level patch jack.
If you put a plug into a lower jack, you break the feed from the upper jack, and
replace it with the signal you are patching into the lower jack. Most modern
patchbays are half-normalled.