GRASS VALLEY Encore, Configuration Manual

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Encore — Configuration Manual 201
Concerto Port Matrix One-to-Many Control
Concerto Port Matrix One-to-Many Control
Background
Previous Concerto Port Matrix software supported one-to-one bi-direc-
tional control for RS-422 serial data routing. To facilitate dubbing opera-
tions, where video may need to be recorded to multiple devices
simultaneously, the Encore 1.8.0 release supports one-to-many data
routing.
The previous Concerto one-to-one control mechanism used the convention
of having the controlling device (for example, a record VTR) be considered
a Destination. Transport commands originating from the controlling device
were directed to a Source over a bi-directional link. This supported the
principal that choosing a different Source for that Destination could also
automatically route the control data path from the controller to that new
Source. However, this mechanism doesn’t allow multi-drop connections,
since each Destination can have only one Source.
The new one-to-many implementation still employs the above strategy for
a first bi-directional control connection. But it also supports additional, one
directional control paths, as illustrated in
Figure 126 . These additional
paths allow sending control signals to multiple locations, and essentially
reverses the Destination/Source control convention to match traditional
routing concepts, where a Source can be sent to multiple Destinations.
Figure 126. Single and Multi Device Control
Note This mechanism allows the existing two direction control and status commu-
nication between the controlling and first controlled device, but only com-
mands will be issued to the additional controlled devices.
S hould these
additional devices experience transport errors, no notification will be sent
back to the controlling device.
8153_07
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Co n t r olli n g
Device
O n e-to-O n e Co ns ide r ed a De s ti n atio n
O n e-to-O n e Co ns ide r ed a So ur ce
O n e-to-Ma n y Co ns ide r ed a So ur ce O n e-to-Ma n y Co ns ide r ed De s ti n atio ns
Fi rs t Co n t r olled
Device
Co n t r olled
Device 2
Co n t r olled
Device 3
Bi-di r ectio n Comm un icatio n
Si n gle-di r ectio n Comm un icatio n