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Ensemble Designs Avenue 7450 HD Protection Switch

Ensemble Designs Avenue 7450 HD Protection Switch
Товар был добавлен в наш каталог Среда, 19 Июня 2013
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7450 HD Protection Switch


- Fail-safe Bypass Protection Switch for Critical Signal Paths

  • - Use with HD SDI signals
  • - Detects Closed Caption Data, TRS, Black, Silence, Freeze
  • - Detection specifics are user programmable
  • - Passes embedded audio
  • - Alarm generation
  • - Remote control and monitoring


The 7450 module is a fail-safe, bypass protection switch for critical digital paths for broadcast or satellite applications. When a fault is detected in the primary input, and the secondary input is verified as good, the switch will activate, causing the secondary input to be switched to the module’s output. The 7450 includes a passive, fail-safe path that ensures there is an output even in the event of a total power failure.


The 7450 supports HD SDI signals. Different types of signal testing (vetting) can be enabled on the 7450 and it will apply the tests automatically and independently for the Primary and Secondary inputs.


The health of a high definition video signal is determined by monitoring crucial parameters in order of increasing complexity; Timing Reference Signal (TRS), or a persistent loss of digital sync is tested first. Black, Embedded Audio and Freeze are also evaluated. Each test can be configured by the user. For example, the sophisticated Black Detector includes configurable parameters for black level threshold, pixel count, and duration time.


The Freeze detection system can be set to detect a clean or noisy source. Freeze Time sets the number of seconds for the 7450 to switch to the secondary input after a video freeze condition is detected in the primary input.


The switch can operate in two modes: automatic or nonresetting. In fully automatic mode, the 7450 will automatically switch back to the primary signal once it’s been restored. In the non-resetting mode, the secondary input remains routed to the output, even after the primary input has recovered.


Controls are easily accessed through an Avenue Control PanelAvenue PC software, GPIs, or front edge module controls. GPI inputs allow faults detected in upstream equipment to contribute to the switching logic.

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