GRASS VALLEY Encore, Руководство по настройке

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Encore — Configuration Manual 31
Overview
the false tally on the initiating control panel reverts to the actual Source
selection for that Destination after a time-out.
Distributed Configuration and Status Data
The Encore system’s varying hardware components and flexible capabili-
ties means various types of configuration and status information are
required. This information specifies what the system does and how its com-
ponents work together.
The Encore system employs a distributed database mechanism. A compre-
hensive database exists that contains all the Encore system configuration
information. Portions of this principle database are then copied to various
Encore system components where it is needed. This allows the system to
continue normal operation even if the device storing the comprehensive
database goes off-line or is otherwise unavailable. This also allows an oper-
ating Encore system to remain on-line while it is being re-configured. This
is especially powerful with control panels, which can be remotely reconfig-
ured instantly to acquire different operating functions. Control panels also
automatically receive a default configuration (from previously defined
templates) as soon as they are added to the Encore network.
With a distributed database, the various copies of the data must be synchro-
nized. Various methods are used to accomplish this. In general, when an
Encore component is operating in Sharer mode, that means it is in sync
with the comprehensive database managed by the Sharer. If in Local mode,
the local database information is not being updated by the Sharer and so
may not be synchronized. Commands are available (Load, Save, Save As,
etc.) to force the synchronization of the database information.
Another important aspect of the Encore system is reporting accurate
system status information. The current status of the system (for example,
which Sources are routed to which Destinations), must be available to
many Encore components so they can display the correct Source and Des-
tination names and tallies. Memory maps are used to for this purpose.
Memory map information cascades up from the Matrices for display on the
control panels.
Figure 16 illustrates the concept of a distributed database, templates, and
memory maps.