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Network Electronics AAV-MUX Product Manual

Analogue audio embedder
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AAV-MUX
Analogue audio embedder
Product Manual
Rev. 1
Network Electronics ASA
Thorøya
Sandefjord, Norway
Phone: +47 33 48 99 99
Fax: +47 33 48 99 98

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Summary of Contents for Network Electronics AAV-MUX

  • Page 1 AAV-MUX Analogue audio embedder Product Manual Rev. 1 Network Electronics ASA Thorøya Sandefjord, Norway Phone: +47 33 48 99 99 Fax: +47 33 48 99 98...
  • Page 2 AAV-MUX Rev. 1 Network Electronics ASA Thorøya Sandefjord, Norway Phone: +47 3348 9999 Fax: +47 3348 9998 e-mail: support@network-electronics.com www.network-electronics.com Direct Service Phone: +47 9060 9999 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.

  • Page 3: Table Of Contents

    AAV-MUX Rev. 1 Index 1 INTRODUCTION...................4 2 SPECIFICATION.....................5 2.1 Measurement conditions................5 2.2 General....................5 2.3 Inputs.......................5 2.3.1 Video Input:..................5 2.3.2 Audio Inputs:..................5 2.4 Outputs....................6 2.4.1 SDI Output ..................6 2.4.2 Optical Output..................6 2.4.3 GPI.......................7 3 DETAILED DESCRIPTION................7 4 CONFIGURATION..................7 4.1 DIP switches....................8 4.1.1 Input gain.....................8...

  • Page 4: Introduction

    Rev. 1 1 Introduction The AAV-MUX card is a four audio channel, analogue audio embedder card for serial digital video. 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 and multi mode optical fibre.

  • Page 5: Specification

    AAV-MUX Rev. 1 2 Specification 2.1 Measurement conditions Sampling rate 48 kHz Ambient temperature 25ºC Measurement bandwidth 20 Hz-20 kHz Detector Input overload level (0dBFS) +18 dBu 2.2 General Power: +5V DC 0.51A 2.6W, +15V DC 0.063A 0.95W Control: DIP switches, Gyda system controller.

  • Page 6: Outputs

    AAV-MUX Rev. 1 Connector: 25 pin D-sub. Maximum signal level: Configurable +12dBu to +24dBu (=0dBFS) Common mode voltage tolerance ±50 V Frequency response 20 Hz – 20 kHz •0.1 dB Passband ripple ±0.035 dB Stop band attenuation 95 dB Dynamic range Min.

  • Page 7: Gpi

    The AAV-MUX works with a single audio group. Digital VTRs usually embed audio in group 1. Embedding on audio group 1 with the AAV-MUX should be used if the original audio is absent, or is to be replaced. Use another group number if extra audio is to be embedded.

  • Page 8: Dip Switches

    Switches marked 1L and 1R control the levels for converter 1 while switches marked 2L and 2R control the levels for converter 2. The settings for the level switches are presented in the following table. The table is also printed on the AAV-MUX card. 0 corresponds to off. 1 corresponds to on.

  • Page 9: Monitoring The Status With Gyda

    Gyda can be also used to switch the laser on or off if the fibre requires attention. The control buttons only appear on the page when they are relevant. 5 Limitations If the AAV-MUX is used to embed in audio group 1, all existing packets will be...

  • Page 10: Connector Modules

    Removed audio groups when de-embedding will leave 'holes' in the embedded audio and the AAV-MUX will start embedding as soon as any of these holes are encountered. This may result in the corruption of other audio groups which are still present after the 'holes'.
  • Page 11 AAV-MUX Rev. 1 input and output connectors are BNCs. The RJ45 connector is used for alarms.
  • Page 12 AAV-MUX Rev. 1 cold cold inputs cold cold Figure 4 Audio connector configuration.

  • Page 13: Gpi Control Connections

    Audio1 clip Audio2 clip Figure 5 LED overview of AAV-MUX (Text not printed on the front panel).The AAV-MUX has 4 LED’s. The colours of each of the LED’s have different meanings as shown in the table below. 7.1 LED Overview...

  • Page 14: Laser Safety Precautions

    AAV-MUX Rev. 1 8 Laser safety precautions Guidelines to limit hazards from laser exposure. ® The AV-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 around 1310 nm or 1550 nm. This means that the human eye cannot see the beam, and the blink reflex can not protect the eye.

  • Page 15: Declaration Of Conformity With Ce

    AAV-MUX Rev. 1 9 Declaration of conformity with CE This apparatus meets the requirements of EN 55103-1 (November 1996) with regard to emissions, and EN 55103-2 (November 1996) with regard to immunity; it thereby complies with the Electromagnetic Compatibility Directive 89/336/EEC.

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