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GeckoFlex 8925EMB-U HD/SD Unbalanced Audio Embedder

The 8925EMB-U is a compact eight-channel HD/SD digital audio embedder (multiplexer) module. It provides three distributed SDI outputs with embedded audio and one output acting as an input reclocked loop-through. This module is ideal for building dense HD/SD and audio infrastructure for production and playout applications.

The module automatically detects the audio format, and Dolby E streams are also detected and passed transparently. The AES inputs can handle asynchronous audio and sampling rates from 32 kHz to 96 kHz, which are converted to synchronous 48 kHz embedded within the video stream. The 8925EMB-U is suitable for use where existing embedded audio needs to be combined with incoming embedded audio.

With its fiber-ready architecture, the 8925EMB-U can be configured to support up to two fiber inputs and two fiber outputs. With the fiber transmitter or transceiver option, it can take video from copper or fiber, embed audio, and transmit over fiber in one single slot. The receiver option makes it ideal for receiving incoming feeds from longer distances and locally embedding audio.

All parameters can be adjusted via standard HTML Web browsers or via the Newton™ Control Panel. In addition NetConfig™ and NetCentral® can be used for remote configuration and signal health monitoring.

  • Eight-channel (four stream) HD/SD digital audio embedder (multiplexer)
  • Four unbalanced AES inputs
  • Accepts asynchronous PCM audio
  • Supports Dolby E
  • Three HD/SD SDI outputs with embedded audio
  • Sample rate conversion accepts 32 kHz, 44.1 kHz, 48 kHz, or 96 kHz
  • Embeds 20 or 24 bits
  • Fiber-ready option for receiving or transmitting over fiber applications
  • Embedding audio into an HD-SDI stream
  • Embedding asynchronous PCM digital audio
  • Embedding audio channels and sending an HD-SDI signal over fiber
  • Embedding audio into an HD-SDI stream
  • Embedding asynchronous PCM digital audio
  • Embedding audio channels and sending an HD-SDI signal over fiber

Supported Frame Types
GeckoFlex with 8900NET (Net Card) for configuration


Power Rating
7.7 Watts – single slot


Video Inputs
HD/SD-SDI:

  • Input equalization: HD up to 125m, SD up to 330m
  • Auto-sensing: yes

Optical: Single-mode (optional)
Formats supported: 1080i @ 59.94, 50, 720p @ 59.94, 50, 480i @ 59.94, 576i @ 50, 1080p @ 23.98, 1080sF @ 23.98


Audio Inputs
AES: Four inputs
Signal type – unbalanced: AES-3id-2001
Common mode range: N/A
Sampling rate: 32, 44.1, 48 or 96 kHz
Resolution: 20- or 24-bit
Input return loss: > –25 dB (100 kHz to 12 MHz)
Input impedance: 75Ω
Connector type: BNC


Video Outputs
HD/SD-SDI: Four outputs

  • Return loss: >15 dB, 5 to 270 MHz; >15 dB typical, to 1.5 GHz
  • Signal level: SDI 800 mVp-p ±10%
  • Rise/fall time (20-80%): 140 ps typical for HD, 640 ps typical for SD
  • Output jitter, low jitter applied:
    • < 0.2 UI HD > 100 kHz
    • < 1.0 UI HD 10 Hz > 100 kHz
    • < 0.2 UI SD > 1 kHz
    • < 0.2 UI SD 10 Hz > 1 kHz

Optical: Single-mode (optional)


Electrical Length (delay)
SDI: HD input <450 ns, SD input <1.6 µs
PCM audio with SRC on (@48 kHz): HD input 3.4 ms, SD input 3.45 ms
Non-PCM audio or PCM with SRC off: HD input 0.17 ms, SD input 0.58_ms
Audio/video offset: Min. SD 40 µs / HD 62 µs


Embedding
Delete individual embedded audio group: Yes/no
Embedded audio stream: Silence, any incoming group or any audio input
Output audio resolution: 20-, 24-bit, or auto as input

GeckoFlex in the News
June 12, 2013
San Francisco, Calif., June 12, 2013Grass Valley® today announced that Ethiopian government-owned Amhara TV has selected Grass Valley to provide several solutions to build Ethiopia's first HD terrestrial TV broadcast station. Grass Valley solutions will be used to outfit two HD studios and a master control room (MCR). Amhara TV is an important part of the developing media landscape in Ethiopia, and will be available both terrestrially and via the Nilesat free-to-air satellite service.
March 28, 2013
San Francisco, Calif., March 28, 2013 — Iglesia Cristiana Casa de Dios—the largest and fastest growing church in Guatemala—has selected Grass Valley® Live Production solutions to outfit its new church in order to produce high-quality programs for church members and viewers. Daily, Iglesia Cristiana Casa de Dios airs Latin America's number one rated Christian program on TBN's "Enlace" as well as Daystar's "Casa de Dios" and "Noches de Gloria". The programs are seen throughout the U.S., Central and South America, and parts of Europe.

GeckoFlex 8925EMB-U HD/SD Unbalanced Audio Embedder Data Sheet

Posted Nov 17 2010 (MOD-4017M-5 8925EMB-U) File Size: 226.6 KB

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