Tally interface, Modes of operation, Introduction – Grass Valley NV9654 v.1.1 User Manual
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Introduction
Modes of Operation
Tally Interface
At the rear of the panel is a DB25 connector that provides 8 tally inputs and 4 tally outputs. (The
outputs are solid state relay outputs.) Both inputs and outputs are optically isolated.
During configuration, you can construct expressions of Boolean logic that switch the outputs on
or off. The terms of the logic expressions are states of the source and destination devices, etc.,
controlled by the NV9000 control system.
During configuration, you can define NV9654 behavior that will follow the tally inputs.
What you connect to the tally interface is, of course, up to you. Grass Valley provides a breakout
cable (WC0053) for the tally connector
—
as a purchase option.
The NV9000-SE Utilities on-line help calls the tally interface a GPIO interface. On the rear of the
panel, it is labelled a “GPI interface.”
, on page 81, for complete detail.
Modes of Operation
The panel operates in either X-Y mode or multi-destination (MD) mode. The panel has a button
type (XY/MD) that toggles between the modes. A third mode
—
called “single-bus,” “single-
destination,” or “button-per-source” mode
—
can be emulated in either X-Y mode or MD mode.
The primary modes of operation are:
•
X-Y mode
—
control of individual router levels. Choose a destination, optionally choose
desired breakaway levels, choosing source(s), and press ‘Take’ to complete a desired route.
•
Multi-destination mode
—
lets you control multiple destinations. The LCD buttons display
destinations and sources. You can scroll through destination lists using the ‘Page Up’ and
‘Page Down’ buttons. Select a destination using selection buttons, choose a source, and
repeat for all desired routes. Then press ‘Take’. Takes in MD mode are “all level,” and break-
aways cannot be performed.
A ‘Hold’ button allows you to select many MD destinations at once.
•
Single-destination mode.
Single-destination” mode is not a distinct mode, but we mention it here because it is a mode
on some other panels and can be simulated on the NV9654. It can be combined with the
other two modes. You can create many different forms of “single-destination” mode.
To understand single-destination mode, you must understand the different button types.
Please read the Configuration and Operation chapters and then see
The secondary modes of panel operation are:
•
Setup mode
—
where the NV9654 is freshly powered up, but disconnected from the net-
work. In this mode, you can preset the NV9654’s panel ID and perform a few diagnostic tasks.
•
Salvo mode
—
pressing a Salvo button (and then the ‘Take’ button) executes a salvo. (The
duration of a salvo is indeterminate.)
•
Menu mode
—
pressing a Menu button places the NV9654 in “menu” mode. In menu mode,
the panel’s button array becomes a menu that changes as needed during menu operation.