GRASS VALLEY Encore, Руководство по настройке

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Encore — Configuration Manual 23
Routing Basics
Preset
- Selecting an item (for example a Source or Destination) in prepara-
tion for an action.
Protect
- A control function that prevents control panels or devices from
changing the current Source selection for the specified Destination.
Salvo
- A named, system-wide preset which, when executed, can change
crosspoints on multiple Destinations at the same time.
Source
- An input signal or collection of input signals generally associated
with a particular device (like a VTR or DDR). A Source may contain signals
from multiple Levels.
Take
- The direct, immediate switching of a different Source to a Destination.
The Take occurs during the vertical interval for a clean transition.
Template
- A set of parameters that can be applied to a control panel’s con-
figuration. The same template can be applied to multiple panels.
Tally
- A status acknowledgment returned to a control panel or terminal that
an operation has been executed. Typically this will light up a button, but a
Tally may report text (for example a Source name).
Tie-Line
- A system tie-line is a physical connection used to give a Destina-
tion connected to the output of one matrix access to Sources connected to
the input of another matrix. A signal which passes through two or more
matrices; more specifically the path (consisting of one or more Tie Wires)
which links a Destination of one matrix to a Source of another matrix. A
local tie-line is a special type that has Sources and Destinations in the same
matrix, usually sending the signal out of the matrix for external processing.
Matrix Crosspoints and Levels Description
Each router matrix can be broken down into a number of switching
matrices. A single switching matrix controls the switching (or routing) of a
particular type of electrical signal (e.g. digital video, analog video, audio,
data, etc.). These different signal formats are referred to as Levels. When a
connection is made, a path is formed between a unique Source (logical
grouping of physical inputs) and a unique Destination (logical grouping of
physical outputs). The physical connection is accomplished using cros-
spoint circuitry.
Figure 9 illustrates how a single switching matrix operates.