Instruction manual

JUPITER CM-4400 Control Module Installation and Operating Manual 163
Switcher Input Table
Figure 112. Example of the Switcher Input Table
Split Switching
Split (or breakaway) switching is the selection of one input on one level and
another input on another level. An example would be the selection of color
bars on the video level and test tone on the audio levels. Split switches can
be manual, where the operator addresses individual levels and makes each
switch separately; or, automatic, where a single category / entry number
will cause the split to occur.
An automatic split can be arranged in one of two ways:
1. The switcher can be wired so that the split sources arrive on parallel
inputs, as shown in Figure113. On the video level, color bars are wired
in as input 0. However, on the audio levels, test tone is wired in as input
0 and a time code generator is wired in as input 0 on the time code level.
The Switcher Inputs table (Figure112) is then arranged so that the input
named “BARS” will switch to input 0 on all levels. This technique
might be referred to as a “hard−wired split.”
Figure 113. Inputs to four−level switcher, showing a “hard−wired split”
0
Video
BARS
1234
Left audio
TONE TONE
Right audio Time code
01234 0 1234 0 1234
TIME CODE
GEN
071826105_Hardwired Split