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Network Electronics Flashlink AAV-DMUX User Manual

Analogue audio de-embedder
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AAV-DMUX
Rev. 1
User Manual
AAV-DMUX (-R)
Analogue audio de-embedder
Network Electronics ASA
Thorøya
Sandefjord, Norway
Phone: +47 33 48 99 99
Fax: +47 33 48 99 98
e-mail: support@network-electronics.com
www.network-electronics.com
Direct Service Phone: +47 9060 9999
1

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Summary of Contents for Network Electronics Flashlink AAV-DMUX

  • Page 1 AAV-DMUX Rev. 1 User Manual AAV-DMUX (-R) Analogue audio de-embedder Network Electronics ASA Thorøya Sandefjord, Norway Phone: +47 33 48 99 99 Fax: +47 33 48 99 98 e-mail: support@network-electronics.com www.network-electronics.com Direct Service Phone: +47 9060 9999...

  • Page 2: Revision History

    AAV-DMUX Rev. 1 1 Revision history The latest version is always available in pdf-format on our web-site: http://www.network-electronics.com/ Current revision of this document is the uppermost in the table below. Revision Replaces Date Change Description Style, gain switch examples and group switch names in 2005-10-21 table corrected.

  • Page 3: Table Of Contents

    AAV-DMUX Rev. 1 Index 1 REVISION HISTORY....................2 2 INTRODUCTION.....................4 3 SPECIFICATION......................4 3.1 Measurement conditions...................4 3.2 General......................5 3.3 Inputs........................5 3.3.1 Video Input:....................5 3.3.2 Optical Input:....................5 3.4 Outputs......................5 3.4.1 SDI Output ....................5 3.4.2 Audio Outputs:.....................6 3.4.3 GPI........................6 4 DETAILED DESCRIPTION..................6 5 CONFIGURATION....................7 5.1 DIP switches......................7 5.1.1 Output gain....................7 5.1.2 No EDH insert....................7...

  • Page 4: Introduction

    AAV-DMUX Rev. 1 2 Introduction The AAV-DMUX card is an analogue audio de-embedder card for serial digital video for four audio channels. It is one of the Flashlink series of modules, providing a compact and cost effective solution for the transport of digital video and audio over single mode optical fibre.

  • Page 5: General

    AAV-DMUX Rev. 1 3.2 General Power: +5V 480mA 2.4W, +15V 100mA 1.5W, -15V 46mA 0.7W Control: DIP switches, Gyda system controller. Monitoring: Front panel LED’s and Gyda system controller . EDH processing: Full. Received flags are updated, new CRCs are calculated.

  • Page 6: Audio Outputs

    AAV-DMUX Rev. 1 3.4.2 Audio Outputs: Number of analogue outputs: 4 electronically balanced. Audio sampling frequency: 48 kHz Impedance: differential, 5 k common mode Connector: 25 pin D-sub. De-embedded audio wordlength: Up to 24 bits. Frequency response: 20 Hz – 20kHz Dynamic range: >...

  • Page 7: Configuration

    AAV-DMUX Rev. 1 5 Configuration 270 Mbit digital video may have up to four audio groups which are numbered 1 to 4. Each audio group has four mono audio channels or two stereo audio signals. The AAV-DMUX works with a single audio group. Digital VTRs usually embed audio in group 1.

  • Page 8: Remove Audio

    AAV-DMUX Rev. 1 Figure 2 Configured for +18 dBu overload level and embedding on group 1 5.1.3 Remove audio This switch is used to select whether the de-embedder processor removes the embedded audio from the output video. Some old video equipment cannot tolerate the presence of embedded audio and will appear to lose vertical synchronisation.

  • Page 9: Limitations

    AAV-DMUX Rev. 1 6 Limitations Removing the audio group when de-embedding will only remove the audio group to which the card is configured to read. This may leave 'holes' in the embedded audio. Embedding audio into the video signal after removing the audio will start embedding as soon as any of these holes are encountered.

  • Page 10: Gpi Control Connections

    AAV-DMUX Rev. 1 cold cold outputs cold cold Figure 4 Audio connector configuration. 7.1 GPI Control Connections Function Card has correct power. The card has not locked to any input SDI An error has occurred in the de-embedding process Audio 1 signal is invalid. Audio 2 signal is invalid 0 volt pin Most of the alarms are active during an alarm condition, i.e.

  • Page 11: Module Status

    AAV-DMUX Rev. 1 8 Module status The status of the module can be easily monitored visually by the LED’s at the front of the module. The LED’s are visible through the front panel as shown in the figure below. AAV-DMUX Card status Video status AES1 status...

  • Page 12: Laser Safety Precautions

    AAV-DMUX Rev. 1 9 Laser safety precautions Guidelines to limit hazards from laser exposure. The AV-MUX and AAV-MUX units in the flashlink range have a laser option. Therefore this note on laser safety should be read thoroughly. The lasers emit light at wavelengths from 1200nm to 1620nm. This means that the human eye cannot see the beam, and the blink reflex can not protect the eye.

  • Page 13: Environmental Requirements For Network Flashlink Equipment

    AAV-DMUX Rev. 1 ® 11 Environmental requirements for Network flashlink equipment 1. The equipment will meet the guaranteed performance specification under the following environmental conditions: • Operating room temperature range 0°C to 50°C • Operating relative humidity range up to 90% (non-condensing) 2.

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Flashlink aav-dmux-r

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