Grass Valley Jupiter v.1.0 - Manual (Page 115)

Jupiter L-S Series Control Panels Installation and Operating Manual 115
Glossary
T
three-stage switching
Architecture used for very large switchers as
a means of reducing the number of cros-
spoints needed for a given number of in-
puts/outputs. An array of relatively small
matrixes is arranged in an input stage, an in-
termediate stage, and an output stage. The
path taken by a given signal through these
stages is determined by software and will
vary according to which circuits are already
in use. Unlike
PATH FINDING between two
discrete switchers, three-stage switchers are
carefully designed so that all inputs are al-
ways available at all outputs; i.e., the switch-
er cannot be blocked.
tie line
see PATH FINDING .
TDM
Time Domain Multiplexing.
tributary
Term used in ES BUS documentation for an in-
telligent device (such as a VTR or control
panel) connected to an ES
BUS .
V
VDE
Verband Deutscher Electrotechniker e.V.
(Union of German Electrical Engineers). Pro-
fessional organization in Germany autho-
rized to conduct product safety tests.
VITC
Vertical Interval Time Code, embedded in
the vertical interval of the video signal.
VGA Status Display
Built-in switcher and machine control status
display feature of the VM 3000. Can be con-
trolled by front-panel buttons or with op-
tional VC 3020 panel.
X
X-Y selection method
Full-matrix control of switcher, where source
is described as (x) and destination is de-
scribed as (y).