Grass Valley NV9575-VF User Manual
NV9575-VF
Video
frame
TALLY EXPANDER
POWER
AB
This guide is a compilation of information taken from the NV9000-SE Utilities help pages. It is
with NV9000-SE Utilities that you must configure the NV9575-VF.
Refer to the NV9000-SE Utilities User’s Guide (UG0007) for additional information.
Introduction
The NV575-VF is a tally interface:
This 1RU device (unlike router control panels) has no controls on its front panel. What it does have
are 64 relay outputs and 32 optically isolated inputs, typically used for tally functions.
The NV9575-VF has 6 DB25 connectors on its rear panel
— J1 through J6. J1, J2, J4, and J5 pro-
vide connections for the 64 relay outputs, 16 per connector, with 8 pins common. J3 and J6 provide
connections for the 32 inputs, also 16 per connector with 8 pins common.
Each relay can be configured to switch on a number of conditions:
• One or more routes occurring on specific levels.
• Conditions involving output ports (destination, level).
• A transition on one or more of the NV9575-VF inputs.
Each input (also called a GPI) can be configured to trigger a salvo on a transition from off to on and
to trigger another salvo on a transition from on to off.
NV9575-VF Tally Interface • User’s Guide 1
1. NV9575-VF
Configuration
Configuration
This is the NV9575-VF panel configuration page from NV9000-SE Utilities:
Note: The “buttons” you see on the NV9575-VF page represent connections at the rear of the panel.
The NV9575-VF has no buttons.
Initial setup of the NV9575-VF requires installation and use of the Videoframe configuration software. See Initial Setup
, on page 7, for details.
Regions of the Page
There are 3 regions:
• ‘Revert to Saved’ and ‘Save’ buttons.
These buttons are present on all configuration pages in NV9000-SE Utilities. Press ‘Save’ at
any time to commit changes to the panel configuration. The ‘Save’ button is disabled (grayed
out) if there are no changes to save.
Press ‘Revert to Saved’ if you want to discard recent changes that you have made.
• A graphic representation of the NV9575-VF connectors.
On the right side are 32 button images that represent the 32 optically isolated inputs. On the left
side of the panel are 64 button images representing the 64 relay outputs. Click on a button to
assign a function to its associated input or output.
An input can trigger a salvo.
A relay closure occurs based on Boolean expressions defined for the output. The expression can
reflect (1) the occurrence of a particular source switched to a particular destination, on a particular level, (2) output port status, and (3) input transition.
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1. NV9575-VF
Configuration
A button appears pressed (like button 59 in the illustration above) when you are assigning a
function to it. Buttons that have been assigned functions appear green (like buttons 56 and 57
above).
• A drop-down menu in which to select a control point for the NV9575-VF.
The control point is one you will have created for the NV9575-VF. See Initial Setup
for details.
Button Definitions
There are two types of buttons in the configuration page: outputs and inputs.
Outputs
Clicking an output button (one of 64 on the left) displays a “Relay Rule” dialog:
on page 7
In this dialog, you enter a Boolean expression involving sources, destinations, port status, and GPI
status. This sample shows one such Boolean expression.
Boolean expressions comprise terms and operators. The operators include those indicated on the
left:
AND, OR, and NOT. Expressions can be parenthesized to control the order of evaluation. Operator
precedence is normally
parentheses are evaluated before outer parentheses.
Terms (i.e., operands) are generated by choosing entries in the other fields and clicking ADD. The
example shows the following:
Dest. Device:
Source Device: CAM1 Source Level: SD
NV9575-VF Tally Interface • User’s Guide 3
NOT > AND > OR. All parenthesized expressions are evaluated first; nested
MON2 Dest. Level: SD
1. NV9575-VF
Configuration
Choosing these items (and clicking ADD) produces the Boolean expression:
In the preceding illustration, that expression is ANDed with another expression
The relay chosen (relay 1) will transition when the entire expression is true. That is, when the
switch occurs and either of the inputs (3 or 8) transitions from off to on.
(To allow a relay to switch when an input transitions from on to off, precede the input term by
“NOT.” For example, the expression
will evaluate true either when input 3 goes from off to on or when input 8 goes from on to off.)
You can also include one or more expressions regarding the state of output ports. You must choose
a entry in the drop-down menu. These are the choices:
Choosing ‘Used as broadcast slave’,
which you can combine with other expressions as you require.
SD on CAM1 is switched to SD on MON2
INPUT 3 OR INPUT 8
INPUT 3 OR NOT INPUT 8
The operation was successful
Destination port locked
Destination port protected
Router offline / unavailable
No tieline available
Used as master point to point
Used as master without responses
Used as broadcast master
Used as slave point to point
Used as slave without responses
Used as Broadcast Slave
VTR3, and CTRL for output port status produces the proposition
CTRL on VTR3 has status of ‘Used as broadcast slave.’
Four arrow buttons at the lower left corner of the relay dialog allow you to traverse the expression
you are building:
The left double arrows highlights the first term or operator in the expression. The right double
arrow positions you at the very end of the expression where you may add more items.
The single arrows select and highlight the previous or next terms, operators, or spaces between
terms and operators. If you wish to change a term, you may highlight it, reconstruct the term in the
appropriate entry fields, and click the Change button to effect the change.
Using the arrows is the only way to position between two items or at the end of the expression. You
can double-click a term or an operator to select it directly.
You can click “Check Syntax” to evaluate the syntax of your complete expression. Generally, an
syntax error will have occurred because you forgot an operator between terms or you have an extra
operator at the end.
You can click “Delete” to delete a selected term or operator.
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