Grass Valley NV9000-SE v.3.0 - Manual (Page 560)

540 Rev 3.0 • 25 Mar 10
B. Control Panels
NV9641
necessary when a list of items — for instance, source devices — exceeds the number of buttons
available for the items.
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 config-
uration, you can construct Boolean logic that switches the outputs on. The terms of the logic
expressions are states of the source and destination devices, etc., controlled by the NV9641.
During configuration, you can prescribe NV9641 behavior that depends on the tally inputs. What
you connect to the tally interface is, of course, up to you. NVISION provides a breakout cable
(WC0053) for the tally connector as a purchase option.
The NV9000-SE Utilities on-line help documentation calls the tally interface a GPIO interface. On
the rear of the panel, it is labelled a “GPI interface.” See
Defining General Purpose I/O (GPIO)
Connections on page 337, for details.
Modes of Operation
The panel operates in either X-Y mode or multi-destination (MD) mode. A single button (XY/MD)
can toggle between the modes. A third mode
— called “single-bus,” “single-destination,” or “but
on- per-source” mode — can be emulated in either X-Y mode or MD mode.
The primary modes of operation are:
• X-Y Mode — individual control of all router levels. Choose a destination, optionally choose
desired breakaway levels, choose a source, and press
Take
to complete a desired route.
• Multi-Destination Mode — lets you control multiple destinations. The LCD buttons display des-
tinations and sources. You can scroll through destination lists using the
Up
and
Down
buttons.
Select a destination, choose a source, and repeat for all desired routes. Then press Take . Takes
are “all level,” and breakaways cannot be performed.
• Paging Mode — enables you to build a series of pages that display predefined buttons. During
operation, the
Up
and
Down
buttons navigate through all of the pages in the order created. For
more information on pages, see Creating a “Tree” of Pages on page 342.
• Single-Destination Mode — Single-destination” mode is not a distinct mode. It can be com-
bined with the other two modes. You can create many different forms of “single-destination”
mode. This mode need not have a single destination. To understand single-destination mode,
you need to understand the different button types.
The secondary modes of operation are:
• Setup Mode — where the NV9641 is freshly powered up, but disconnected from the network. In
this mode, you can preset the NV9641’s panel ID and perform a few diagnostic tasks.
• Salvo Mode — pressing a Salvo button (and then the Take button) executes a salvo. (The dura-
tion of a salvo is indeterminate.)
Note The ‘Hold’ mode allows you to select many MD destinations at once.