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Pro-Bel's TX 520 Digital Master Control Switcher is a self-contained component
digital video and AES/EBU audio transmission mixing system. It is normally
operated from the control panel but can be remotely controlled by an automation
system. It can be set up to support single or multi-level audio.
The TX 520 can be used for:
· Making transitions of sources to air using cuts, various fade/take
combinations and wipes (see chapter 3).
· Adding downstream keys (see chapter 4).
· Defining and making audio-overs (see chapter 6).
· Monitoring audio and video sources (see chapters 7 and 8).
· Correcting audio levels (see chapter 15). The TX 520 can also be set up to
support multi-level audio, allowing editing of the audio routing and selection
of the audio level to monitor on the audio monitoring speakers (see chapter
16).
· An optional DVE is also available, providing up to 24 pre-programmed
moves (see chapter 5)
A plasma display (see chapter 12) provides dynamic monitoring of audio levels
and control of system parameters. In addition, the plasma display is used for
system setup and configuration.
Configuration details are provided in the technical manual.
Two auxiliary busses (see chapter7) allow previewing of sources without affecting
the preset or programme selections. Two independent dual channel outputs
provide audio monitoring (see chapter 8).
From the TX 520 console, up to three remote machines can be controlled directly
(for example, VTRs, laser disks, etc.), or up to 20 sources if the TX 520 is
connected to an RS422 router.
The TX 520 can be operated manually or integrated with a station automation
system (see chapter 10).
For fail safe operations, an external bypass switcher may be controlled from the
TX 520 (see chapter 11).
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