546
Interfacing With External Devices (Device Interface Menu)
Chapter 20 Switcher Setup (Switcher)
powering the system off, the action triggered by the GPI
may start immediately before the power goes off and the
power may go off before the action is completed. This
may corrupt the setup settings. It is therefore
recommended to use Level Enable to avoid such a
situation.
• If “Format” is selected for “Action” when the format
converter is used on the switcher, you can set the
conversion format of the format converter for “FC Input
1-4,” “FC Input 5-8,” “FC Input 9-12” (MVS-8000X
only), “FC Input 13-16” (MVS-8000X only), “FC
Output 1-2,” and “FC Output 3-4.”
Carrying out level settings
To set the low level and high level, first set the trigger type
to “Level,” then use the following procedure.
1
In the Switcher >Device Interface menu, select the
action to be set, and press [H/L Set].
The H/L Set menu appears.
2
Using any of the following methods, select the
settings.
• Press directly on the list in the status area.
• Press the arrow keys to scroll the reverse video
cursor.
• Turn the knob.
3
To apply the selection made in step 2 when the input
is high, press [H Set]. To apply the selection made in
step 2 when the input is low, press [L Set].
This confirms the setting, which appears in the status
area.
• When the action is “Format,” these settings conflict
with the current settings, but after making the
settings, agreement is restored after a pulse change
or power off/on.
• When the Action is “Bkgd A Side Flags” or “Bkgd
B Side Flags,” the levels are fixed, as follows.
High level: Off
Low level: On
To Set the Level for the Format Converter
1
Set “Action” to “Format” in step 5 of the procedure in
“Making Switcher Processor GPI Input Settings”
(page 545).
The format converter list appears.
2
Select the format converter that you want to set from
the list.
3
In the <FC Input/Output> group, press [H Set] or [L
Set] to set the high level or low level, respectively.
Making Switcher Processor GPI
Output Settings
1
In the Switcher >Device Interface menu, press [GPI
Output].
The GPI Output menu appears.
2
Using any of the following methods, select the
settings.
• Press directly on the list in the status area.
• Press the arrow keys to scroll the reverse video
cursor.
• Turn the knob.
3
In the <Trigger Type> group, select the trigger
polarity.
(Rising Edge): The trigger causes the relay
contacts to be open-circuit or drives the output
high, and holds this state for the specified pulse
width.
(Falling Edge): The trigger causes the relay
contacts to be shorted or drives the output low, and
holds this state for the specified pulse width.
(Any Edge): Each time the trigger occurs, the
relay contacts are alternately closed or opened, or
the output is switched between high and low.
Status: Depending on the status, the relay contacts are
closed or opened, or the output is switched
between high and low.
No Operation: The trigger has no effect on the output.
4
Turn the knobs to select the pulse width and timing to
be set.
a) 1: Field 1, 2: Field 2, 3: Any
When “ ” is selected as the trigger polarity, there is
no Pulse Width setting. When “Status” is selected,
there is no Pulse Width or Timing setting.
Knob Parameter Adjustment Setting values
1 No Selection of
setting for action
1 and upwards
Notes
Knob Parameter Adjustment Setting values
1 Port Port selection 1 to 8
Knob Parameter Adjustment Setting values
3Pulse
Width
Pulse width 1 to 60 (fields)
4 Timing Output timing 1 to 3
a)
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