Chapter 12:
Menus: System Config
When set to Keyer, the unit’s linear keyer will turn on and remain active while a GPI
signal is present. The keyer will turn off upon release of the GPI trigger.
When set to Trouble Slide, the currently selected trouble slide is displayed on the
outputs while a GPI signal is present. The Trouble File option of the Video Setup
menu is used to select the trouble slide to be displayed. The trouble slide is removed
from the display upon release of the GPI trigger.
When set to User 1, an incoming GPI pulse is equivalent to pressing the user-
programmable User 1 key on the front panel of the unit. In this manner, the unit can
be configured to select almost any function on an incoming GPI pulse. See the section
on User-Programmable Keys in Chapter 3, “Operation - Front Panel Controls,” for
details on assigning a function to the User 1 key.
For example, if the User 1 key is assigned to the AGC Bias function, and the GPI-1
Function option is set to User 1, the first incoming GPI pulse will take the user to the
AGC Bias adjustment screen; each subsequent GPI pulse will cycle through the
allowed adjustment values.
When set to Voice-Over, the unit’s audio voice-over mode (see Chapter 6, “Menus:
Audio Setup”) will be activated by a GPI signal. When the GPI signal is first
received, program audio begins fading down, then voice-over mixing begins. Voice-
over mixing continues while the GPI signal is present. Voice-over mixing is stopped
and program audio begins ramping back up upon release of the GPI trigger. This GPI
option is similar to activating and de-activating the Voice-Over option of the Global
Audio Config sub-menu.
GPI input can be contact closure to ground or TTL signal (0 to 5 volts max.).
GPI-2 Function
Selects which function should be triggered when a GPI pulse is received on the GPI-2
connection of the Multi I/O breakout cable.
Valid Settings: Disabled, Freeze, Keyer Off, Trouble Slide, User 2,
Voice-Over
Default Setting: Disabled
When Disabled, no action will be taken on receipt of a GPI pulse.
When set to Freeze, the currently selected Freeze Mode (see Chapter 5, “Menus:
Video Setup”) will be applied to the incoming video while a GPI signal is present,
similar to pressing the Take button on the front panel of the unit. The live video feed
will be resumed when the GPI trigger is released.
When set to Keyer Off, the unit’s linear keyer will be turned off upon receipt of a GPI
pulse.
When set to Trouble Slide, the currently selected trouble slide is displayed on the
outputs while a GPI signal is present. The Trouble File option of the Video Setup
menu is used to select the trouble slide to be displayed. The trouble slide is removed
from the display upon release of the GPI trigger.
When set to User 2, an incoming GPI pulse is equivalent to pressing the user-
programmable User 2 key on the front panel of the unit. In this manner, the unit can
be configured to select almost any function on an incoming GPI pulse. See the section
on User-Programmable Keys in Chapter 3, “Operation - Front Panel Controls,” for
details on assigning a function to the User 2 key.
For example, if the User 2 key is assigned to the AGC Bias function, and the GPI-2
Function option is set to User 2, the first incoming GPI pulse will take the user to the
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