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GeckoFlex 8920MUX SD & Digital Audio Embedder

As serial digital video signals become more prevalent in production facilities, the demand for multichannel audio increases. The 8920MUX provides a cost-effective solution for inserting or replacing one of the eight available groups of dual AES streams in a multiplexed serial digital video signal with embedded AES/EBU audio. The 8920MUX can multiplex up to two, dualchannel 20- or 24-bit AES/EBU audio streams (up to four discrete channels). The 20- or 24-bit AES streams are grouped together and given a unique group ID. This AES group is then inserted into the ancillary data space of the 525 or 625 serial digital component video signal. The 8920MUX is able to add a new AES group into empty ancillary data space, or it can replace an existing AES group—without disturbing the remaining AES groups. Digital audio inputs can be either 75Ω unbalanced or 110Ω balanced.

  • Embeds two AES/EBU streams
  • Existing audio remains undisturbed
  • Accepts 48 kHz audio
  • EDH detection and insertion
  • 75Ω unbalanced or 110Ω balanced audio inputs
  • Supports networked control and monitoring
Supported Chassis Types
GeckoFlex with 8900V-R GeckoFlex Video rear board, Gecko video chassis: 8900TX-V, 8900TF-V, 8900TFN-V

Power Rating
7 Watts – single slot

Video Input
Signal type: SMPTE 259M, EBU 3267-E
Connector: Differential loop-through BNC
Impedance: High Z
Return loss: >15 dB up to 270 MHz
Cable equalization: <300 meters

Audio Input
Signal type: AES-3id-1995 (75Ω), AES3 (110Ω)
Number of channels: Four (two AES streams)
Connectors: BNC (75Ω), 8900CTB-04 terminal block adapter (110Ω)
Sample rate: 48 kHz
Resolution: 20- or 24-bit

Signal type: SMPTE 259M, EBU 3267-E
Connector: Four 75Ω BNC
Return loss: >15 dB, 5 to 270 MHz
Error checking: EDH embedded

Operating temperature: 0° to 45°C
Humidity: 10% to 90% non-condensing

Indicators and Controls
Indicators: Video present, audio present, group present, fault, power, communication active, configuration, remote override
Controls: Audio group selection
Remote: All indicators and controls via Ethernet
November 25, 2013
Hillsboro, Ore., November 25, 2013 — Brazil's Canção Nova, a non-profit Catholic Community located in Cachoeira Paulista in the state of São Paulo, is upgrading its broadcast infrastructure with a range of Grass Valley® solutions including five Maestro™ branding and master control systems, five Concerto™ 64x64 routing switchers, five GeckoFlex™ signal processing systems, and six K2 Summit® servers for optimized live event workflows. The system will be live in November and span five locations.
Hillsboro, Ore., November 12, 2013 — Bank TV, a satellite broadcaster in the Ukraine, has launched a complete, end-to-end high definition (HD) news production solution from Grass Valley® to facilitate the smooth delivery of its 24/7programming. At the core of the broadcaster's new structure is GV STRATUS® nonlinear media production tools for enhanced production and a streamlined workflow. GV STRATUS is being used in tandem with EDIUS® multiformat nonlinear editing software and GV Edge™ Integrated Playout System with K2 Edge™ playout nodes for 24/7 playout. This deal with Bank TV builds upon the recent momentum generated by Grass Valley in the Ukrainian broadcast market as well as traction gained by GV STRATUS in the EMEA region.
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