Grass Valley CRSC v.3.2 - Manual (Page 52)

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Machine Control Routers Page
Background Information
Machine Control Router Crosspoints
The display of machine control “crosspoint matrices” is different from that of other matrices.
Fig. 5-1: Machine Control Crosspoints
See Router Crosspoints Page on page 71.
In the matrix of Figure 5-1, ports 4 and 7 are connected. The square (A) at row 4 and column 7 is
highlighted. The square (B) at row 7 and column 4 is also highlighted.
For machine control crosspoints only, when you click on a square in column C and row R, the
squares at positions (C,R) and (R,C) become highlighted.
If the two ports (in this example, ports 4 and 7) are dynamic ports, then clicking box A and
clicking box B give different results. Either way connects ports 4 and 7, but clicking box B makes
port 7 “controlled” whereas clicking box A makes port 7 “controlling.”
Clicking box A has the same effect as pressing destination (DST) 7 then source (SRC) 4 on a
control panel.
Clicking box B has the same effect as pressing DST 4 then SRC 7 on a control panel.
Reminder: A controlling port is defined as one that is connected to a controlling device. A
controlled port is one connected to a controlled device.
Reminder: A dynamic port is one that can change direction during operation. If a port is not
dynamic, it cannot change from its configured state.
Thus, in general, clicking column C, row R has the same effect as pressing DST C then SRC R:
columns are destinations and rows are sources.
Be aware that when a port appears on the diagonal of the matrix, it is tri-stated or disabled. It
neither transmits nor receives. (Clicking a column head for a machine control router is a no-op.)