L-Acoustics LC16D Owner's Manual
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L-Acoustics LC16D Owner's Manual

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Summary of Contents for L-Acoustics LC16D

  • Page 1 LC16D owner's manual (EN)
  • Page 2 Document reference: LC16D owner's manual (EN) version 1.0 Distribution date: November 30, 2023 © 2023 L-Acoustics. All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means without the express written consent of the publisher.

  • Page 3: Table Of Contents

    Contents Safety................................5 Important safety instructions........................5 Introduction................................ 7 LC16D Network audio converter........................ 7 How to use this manual..........................7 Revision history............................8 System components.............................8 Technical description............................9 Main features............................9 Front and rear panels........................9 Power supply..........................10 Signal processing............................10 Signal inputs and outputs.......................10 Mapping............................
  • Page 4 Operation................................ 21 Powering on/off............................. 21 Interpreting the front panel LEDs.......................21 LC16D embedded Web interface......................26 Top bar............................26 Audio overview..........................27 AVB input mapping........................32 AVB output mapping........................33 GPIO............................34 Settings............................36 Additional actions......................... 39 Specications..............................40 LC16D..............................40...

  • Page 5: Safety

    This system is intended for use by trained personnel for professional applications. As part of a continuous evolution of techniques and standards, L-Acoustics reserves the right to change the specications of its products and the content of its documents without prior notice.
  • Page 6 To return your used device, please use the return and collection systems or contact the retailer where the product was purchased. They can take this product for environmentally safe recycling. LC16D owner's manual (EN) version 1.0...

  • Page 7: Introduction

    Introduction LC16D Network audio converter LC16D is a multichannel converter that bridges MADI and AES/EBU legacy digital formats bidirectionally with a Milan- AVB network. Supporting up to 128 Milan-AVB inputs and outputs simultaneously, LC16D offers dynamic mapping of channels, and comprehensive synchronization options, with remote control via a simple to use embedded web interface.

  • Page 8: Revision History

    This version of the Owner's Manual describes the LC16D rmware version 2.13.1. As part of a continuous evolution of techniques and standards, L-Acoustics reserves the right to change the specications of its products and the content of its documents without prior notice.

  • Page 9: Technical Description

    5. BNC connector for Word clock input and BNC connector for Word clock output (75 Ω terminated) 6. 10-point terminal block General Purpose I/O (GPIO) 7. Micro USB service port 8. 2 × 1 Gb/s Ethernet etherCON I/Os for Milan-AVB I/O, network I/O, and PoE (Power over Ethernet) inputs LC16D owner's manual (EN) version 1.0...

  • Page 10: Power Supply

    Each input signal has integrated ASRC (Asynchronous Sample Rate Converter) supporting a wide range of input formats (44.1 kHz to 192 kHz). The ASRC converts the signals to the rate selected for LC16D (48 kHz or 96 kHz). The ASRC can be disabled individually for each AES/EBU input.

  • Page 11: Mapping

    LC16D synchronizes its media clock according to the selection done by the user. Mapping LC16D has a default mapping of the inputs and outputs that can be modied using the LC16D embedded Web interface. The same Milan-AVB input streams can be used several times in the mapping.

  • Page 12: Monitoring And Control

    (p.21) for detailed operating instructions. Remote control With its factory default settings, LC16D can be used out of the box to convert MADI and AES/EBU formats to Milan-AVB streams ready to be connected to AVB-capable devices. The IP settings, Milan-AVB mapping, and the GPIO conguration can be edited from the LC16D embedded Web interface.

  • Page 13: Installation

    Mounting LC16D is one rack units high (1U) and can be mounted in an EIA-standard 19" rack using the four points on the front panel. Use the xing material provided by the rack manufacturer to mount the device to the rack front rails.

  • Page 14: General Purpose I/O (Gpio)

    +12V OUT for powering a contact relay (45 mA maximum) chassis ground GPIO can be congured using the LC16D embedded Web interface. For more information, refer to Operation (p.21). LC16D owner's manual (EN) version 1.0...

  • Page 15: Power Over Ethernet

    In case of failure of the mains power supply, LC16D is powered through the rst PoE1 (second priority after the mains). In case of a failure of the PSE connected to PoE1 during a failure of the mains power supply, LC16D is powered through PoE2 (third priority).

  • Page 16: Power Cord

    1. For the connection of the digital AES/EBU audio sources inputs and outputs. 2. For the connection of the MADI AES10-2003 audio sources inputs and outputs, and input and output clocks. 3. For the connection of the Milan-AVB network, and to be remotely controlled through the LC16D embedded Web interface.

  • Page 17: Aes/Ebu Audio

    AES/EBU IN 1-16 can receive up to 16 AES/EBU digital audio signals (transported in pairs). The default mapping is to Milan-AVB output streams 1 and 2. AES/EBU OUT 1-16 can transmit up to 16 AES/EBU digital audio signals (transported in pairs). The default mapping is from input streams 1 and 2. LC16D owner's manual (EN) version 1.0...

  • Page 18: Madi Audio

    The supported input frequency is 48 kHz or 96 kHz. WORD IN accepts input levels from 1 Vpp to 5 Vpp, and is protected from overvoltage. WORD OUT output level is 5 Vpp into open load. LC16D owner's manual (EN) version 1.0...

  • Page 19: Milan-Avb

    LINK/ACT 2 connector is used for the secondary network. LC16D can receive and send up to 16 streams in normal and in redundant mode, with up to 8 channels per stream, at 48 kHz or 96 kHz (depending on the unit setting).

  • Page 20: Cabling Examples

    Installation Cabling examples Festivals - LC16D as an AES/EBU to Milan-AVB converter L-ISA Immersive events - LC16D as an Milan-AVB to AES/EBU converter for the fallback system LC16D owner's manual (EN) version 1.0...

  • Page 21: Operation

    Operation Operation Powering on/off LC16D turns on immediately when plugged, and turns off immediately when unplugged (no on/off switch), refer to Plugging LC16D (p.16). During booting, all LEDs light up briey in green or orange. Interpreting the front panel LEDs MAINS The MAINS LED displays the status of the mains input.
  • Page 22 Operation CONTROL The CONTROL LED on the front panel displays the status of the remote control of LC16D. • Green: LC16D is remotely controlled through the LC16D embedded Web interface. • Orange: LC16D is remotely controlled by a third-party software.
  • Page 23 • Off: another clock is selected. • AES/EBU 1: • Green (continuous): The AES/EBU 1 input is selected and locked. • Green (blinking): The AES/EBU 1 input is selected and unlocked. • Off: Another clock is selected. LC16D owner's manual (EN) version 1.0...
  • Page 24 The highest level of the channel pair reaches 20 dB below the maximum level. Green The highest level of the channel pair reaches 60 dB below the maximum level. The highest level of the channel pair is more than 60 dB below the maximum level. LC16D owner's manual (EN) version 1.0...
  • Page 25 The highest level among all MADI outputs reaches 20 dB below the maximum level. Green The highest level among all MADI outputs reaches 60 dB below the maximum level. The highest level among all MADI outputs is more than 60 dB below the maximum level. LC16D owner's manual (EN) version 1.0...

  • Page 26: Lc16D Embedded Web Interface

    An LC16D can be given a name to identify it. Giving a name can help distinguish different devices in the same system, as the name appears in the tabs of the Web browser used to display the LC16D embedded Web interfaces, as well as in L-Acoustics Device Scanner and Hive or other AVDECC Controllers.

  • Page 27: Audio Overview

    • Load audio conguration: Load the audio conguration saved into one of the 10 slots available in the LC16D memory. • Delete audio conguration: Delete one or all of the 10 audio congurations saved into the slots of the LC16D memory.
  • Page 28 If an input/output is in use and is disconnected, an error is displayed. If the input/output is disconnected on purpose, it is possible to clear the error in the extended view to reset to the idle mode. The extended view is unavailable for tiles in idle mode. LC16D owner's manual (EN) version 1.0...
  • Page 29 When there is an error, the corresponding tile has orange or red highlights. Warnings and errors can include: • When a single stream is connected to an AVB input when LC16D is in redundant mode. • When the connected stream is no longer received (talker is ofine).
  • Page 30 Audio input sources are not transmitted if their sampling frequency is different from the operating sampling frequency. If the selected clock reference is lost, a warning is displayed and LC16D operates in "freewheel" mode. Audio at the same sampling frequency is transmitted but there can be small glitches in the audio as the phase drifts between the clocks.
  • Page 31 Use the ASRC panel to individually turn on or off the ASRC (Asynchronous Sample Rate Converter) of each AES/EBU input. Turning off the ASRC can be used to propagate a particular clock domain from an AES/EBU input, or if all AES/EBU inputs are on the same clock. LC16D owner's manual (EN) version 1.0...

  • Page 32: Avb Input Mapping

    The same Milan-AVB input streams can be used several times in the mapping. Use an AVDECC Controller (such as Hive) to connect the Milan-AVB input streams to LC16D. Use the arrows to collapse or expand parts of the matrix table.

  • Page 33: Avb Output Mapping

    When operating at 48 KHz sampling frequency: Milan-AVB output stream 7, channels 1-8 Milan-AVB output stream 8, channels 1-8 Milan-AVB output stream 9, channels 1-8 Milan-AVB output stream 10, channels 1-8 no channel mapped by default Milan-AVB output streams 11-16 LC16D owner's manual (EN) version 1.0...

  • Page 34: Gpio

    General Purpose I/O (GPIO) (p.14) for more information on the GPIO connector. LC16D GPIO connector has four pins available either as input or output. Inputs Every GPI can have two actions: • one action when its state changes from LOW to HIGH, •...
  • Page 35 All the selected options are not reporting any fault: • All selected AVB input streams are locked (primary AND secondary). • All selected AES/EBU inputs are locked. • All selected Ethernet ports are UP. LC16D owner's manual (EN) version 1.0...

  • Page 36: Settings

    Operation Settings The Settings tab gives access to panels to congure LC16D network, sampling rate, and LED brightness, and to update LC16D rmware. Network Use the Network panel to edit the network conguration of LC16D. IP Settings Click EDIT to congure the IP settings (IP address, netmask, and gateway).
  • Page 37 In case of a cable or switch failure in the network, the protocol can re-enable these ports to restore connectivity. Enable RSTP if the LC16D is part of a network loop. Disable RSTP if there is no risk of LC16D being part of a network loop.
  • Page 38 The brightness of the LED can be modied to adapt to a very bright or very dark environment. Firmware Use the Firmware panel to check the version number of the rmware currently installed on LC16D, and update the rmware. Click UPDATE to browse to the rmware le location on the control computer. The rmware update process reboots LC16D.

  • Page 39: Additional Actions

    Operation Additional actions Click the three dots on the right to open a menu for additional actions. Reboot Reboot LC16D. LC16D owner's manual (EN) version 1.0...

  • Page 40: SpeciCations

    Formats: AAF PCM32, up to 8 channels at 48 kHz when the device is operating at 48 kHz at 96 kHz when the device is operating at 96 kHz Input clock stream 1 CRF at 48 kHz LC16D owner's manual (EN) version 1.0...
  • Page 41 Latency compensation No MADI (AES10-2003) Inputs Number of channels 64 at 48 kHz 32 at 96 kHz Sample Rate Conversion Outputs Number of channels 64 at 48 kHz 32 at 96 kHz Sample Rate Conversion LC16D owner's manual (EN) version 1.0...
  • Page 42 1 ground pin, 3 chassis ground pins Service port 1 Micro USB L-Acoustics remote LC16D embedded Web interface, available through a network or USB connection control software L-Acoustics Device Scanner, used with a network connection USB Terminal, used with a USB connection...

  • Page 43: Lc16D

    483 mm / 19 in 465 mm / 18.3 in 44.45 mm / 1.75 in 32 mm / 1.25 in 135.9 mm / 5.35 in 435 mm / 17.13 in 124 mm / 4.88 in LC16D owner's manual (EN) version 1.0...
  • Page 44 L-Acoustics 13 rue Levacher Cintrat - 91460 Marcoussis - France +33 1 69 63 69 63 - info@l-acoustics.com www.l-acoustics.com...

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