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NEXUS STAR
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NEXUS STAR Card RSYNC

RSYNC board supports special applications that require a larger number of different sync inputs and/or outputs. Among them is a BNC input for video genlock or blackburst, which supports both bi-level and tri-level sync.

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NEXUS – RSYNC – The concept


RSYNC board is designed to synchronize a NEXUS network with various external systems. Since a NEXUS system can generally synchronize to any digital audio input, the RSYNC card is particularly useful if separate clock lines are used. The various synchronous inputs support video genlock, black burst, word clock and AES/EBU signals. With video sync, both bi-level and tri-level sync are automatically detected.

The AES/EBU connectors provide both 75 Ohm BNC sockets and 110 Ohm balanced lines accessible via D-Sub connectors. The card recognizes the occupancy automatically.

All connectors have switchable composite filters for noise suppression, and the incoming clock information can serve as a synchronous source for the entire NEXUS network. To ensure continuous operation even in the event of a source failure, a sync hierarchy can be created so that in the event of interruption or excessive inaccuracies of the current synchronous clock, the system fades over to the next available source.


If no other input is selected, the very accurate NEXUS internal clock generator is used. A key quality criterion in NEXUS networks is that external clock sources are always re-clocked by the internal clock generator, which gently fades over to the next clock in the event of a switchover or failure of a sync source, so that there are never dropouts or crackles in the audio.

In conjunction with a cleverly defined sync hierarchy, the board offers a wide range of connection options that ensure that the NEXUS system synchronizes itself to the current application, stabilizes this sync and passes it on to other systems.

NEXUS – RSYNC – Features:


Inputs for wordclock and video sync NEXUS network can be synchronized via the RSYNC card using word clock or video sync signals; dedicated inputs are provided for this purpose.

Automatic detection of the video format When a video sync signal is connected, the RSYNC module automatically recognizes which format is present.

Support of bi- and tri-level-sync The video input accepts a selection of different signals, such as composite, component. In addition, modern tri-level sync signals can also be used for synchronization.

Configuration option for 75 and 500 ohms To enable the serial connection of several loads to a word clock source, the input impedance can be adjusted from 75 to 500 ohms by a jumper.

Synchronization to AES/EBU signals In addition to the BNC connectors, there is a 15-pin Sub-D connector on the front panel for connecting AES/EBU signals. The audio signal is not evaluated by the RCX.

NEXUS - RSYNC - Use cases:


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NEXUS – RSYNC – Technische Daten:
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NEXUS STAR Card RSYNC - Downloads


ST22_RSYNC-EN_0705_A
.pdf
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