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Setup
Reference and video I/O setup, canvas layouts, and signalling setup.
Video Inputs
External video sources come into the switcher through the input HD-BNCs and internal sources are generated internally. Depending on how you want to use these video sources, or where they come from, you may want the switcher to pair them together, or associate an external device with them. Pairing two video sources together is usually used for an auto select key where an external device, such as a character generator, outputs both a key video and key alpha. Associating a video source with an external device allows special control over that device to become active when you select the source on a bus.
GPI Device Control
To Assign a GPI Output to a Video Source
Assign a GPI output to an external video source to trigger events on external devices.

Setup
Reference and video I/O setup, canvas layouts, and signalling setup.
- Network Connections
  The switcher requires a network connection for the DashBoard interface as well as any control panel you want to use.
- Video Reference
  The flexible reference system in the switcher allows you to use an Interlaced video format as the reference to operate the switcher in a video format of the same frequency. Choosing a progressive video format as a reference limits you to operating the switcher only in that same video format and frequency. For example, if you have a 1080i 59.94Hz input reference you can operate the switcher in 720p 59.94Hz, but not 1080i 50Hz. However, if you have a 720p 59.94Hz input reference, you can only operate the switcher in 720p 59.94Hz.
- Video Inputs
  External video sources come into the switcher through the input HD-BNCs and internal sources are generated internally. Depending on how you want to use these video sources, or where they come from, you may want the switcher to pair them together, or associate an external device with them. Pairing two video sources together is usually used for an auto select key where an external device, such as a character generator, outputs both a key video and key alpha. Associating a video source with an external device allows special control over that device to become active when you select the source on a bus.
  - Video Input Setup
  - Source Names
  - Mnemonics
  - Auto Key Setup
  - GPI Device Control
    - To Assign a GPI Output to a Video Source
      Assign a GPI output to an external video source to trigger events on external devices.
  - Tallies Setup
  - Custom Page Auto Follow
  - Substitution Table
    A substitution table allows you to specify a different source that will be taken on a bus when a specific source is selected on that bus. The substitution table requires either a MultiScreen or ME follow to be set up between the buses to trigger the substitution.
- Video Outputs
  The frame has a number of output HD-BNCs that can have any video source in the switcher, including Media-Store channels, aux bus, and clean feed assigned to them.
- MultiViewer
  The MultiViewer allows you to view multiple video sources from a single output BNC. Video inputs or outputs on the switcher, including Program, Preview, and Media-Store channels, can be assigned to any box on the MultiViewer.
- MultiScreen
  MultiScreen works by breaking your display into individual panels. Each panel is represented by a tile in MultiScreen and the entire display is represented by the canvas.
- Splicers
  Splicers allow you to use DVEs to position up to four sources (2×2) on a single output. This can be used to divide up a Canvas for the display segments you want to show it on.
- Frame Sync and Format Conversion
  The frame synchronizer / format converter (FSFC) and input i-to-p converters that can be used to convert video signals as well as correct mistimed, or drifting, video input signal. The frame synchronizers cannot completely correct badly formatted video, mistimed switches, signal drops, or similar issues. Output format converters are only available on outputs 5-14.
- Frame Delays
  A delay of up to 13 frames in HD, or 7 frames in UHDTV1, can be added to any input that an FSFC is assigned to. This allows you to delay the timing of an input to compensate for the delay in another source. For example, in a virtual set environment it may take a few frames for the system to track the position of the camera and render the background. In this case you want to delay the foreground cameras to compensate for this delay.
- Input Media-Stores
  Video inputs must be configured as a Media-Store for that Media-Store channel to be available as a source.
- System Real-Time Clock/Date
  The switcher uses an internal clock to generate the time for the clock overlay for the MultiViewer.
- Color Correction
  The color correctors can operate as Processing Amplifiers (Proc Amps) in the HSL (Y-Cr-Cb) color space or as RGB Color Correctors in the RGB color space. Proc Amps and RGB Color Correctors apply color correction to video on input to the switcher, before the crosspoint, and on the output from the switcher. Correction applied to the input video is then available to all MEs. Output based correction is only available on output BNCs 5 to 14.
- Personality
  Personality settings allow you to configure how you interact with the control panel and switcher, as well as how the buttons on the control panel appear. All of these settings are stored in the Personality register.
- Licenses
  The switcher comes with all the hardware required for the available options. These options can either be licensed at the time you purchase your switcher, or purchased and installed later on.
- GPI Control
  General Purpose Interface (GPI) is a high/low voltage signalling protocol that allows the switcher to send simple commands to an external device, or receive commands from a device. Each pin on the GPI is set as either high (+5 Volts), or low (0 Volts), and it is the switching between high and low that sends commands to the external device, or to the switcher.
- MultiPanel
  Each frame supports up to 3 independent control connections (Main, Satellite 1, and Satellite 2) as well as Satellite 3/SoftPanel. Each connection, with the exception of SoftPanel, can be from a control panel, DashBoard, or a combination of the two. All devices on the same control connection mirror each other.

To Assign a GPI Output to a Video Source

Assign a GPI output to an external video source to trigger events on external devices.

Click Navigation Menu > Configuration > Tally and GPIO and click External Tally or Internal Tally, depending on the video source you want to apply the GPI to.
Click the GPO button for the video source that you want to assign a GPI output to.
If you are using the GPI to control the device, the video source should be the video output coming from the device.
Click the GPI output that you want to assign to the video source.

Note: You must have GPIs set as outputs to be able to assign them to the video source.
In the Predelay field, enter the pre-delay time, in frames, you want to use with the GPI output.

When you transition a video source with a GPI assigned to it, and the Roll Clip feature is active, the switcher triggers the GPI output, and then waits the pre-delay time before performing the transition. The length of the pre-delay is usually the length of time your video server requires to start playing a clip or your character generator requires to load a page.