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

L-Acoustics LC16D Owner's Manual

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  • Page 1 LC16D owner's manual (EN)
  • Page 2 Document reference: LC16D owner's manual (EN) version 4.0 Distribution date: October 24, 2024 © 2024 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............................8 Revision history............................... 8 System components................................9 System component illustrations..........................9 Technical description................................11 Main features.................................11 Front and rear panels..........................11 Power supply.............................. 12 Signal processing..............................12 Signal inputs and outputs..........................
  • Page 4 Milan-AVB or AES67..........................24 Cabling examples............................25 Operation..................................26 Powering on/off..............................26 Interpreting the front panel LEDs......................... 26 LC16D embedded Web interface......................... 31 Top bar............................... 31 Audio overview............................32 AVB or AES67 input mapping........................38 AVB output mapping..........................39 GPIO................................41 Settings...............................

  • 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 specifications of its products and the content of its documents without prior notice.

  • Page 6: Symbols On The Product

    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 4.0...

  • Page 7: Introduction

    64 inputs and outputs are supported. LC16D features an alternative network mode, allowing it to receive up to 16 streams of AES67 network audio, of up to eight channels each at 48 kHz, and convert them to AES/EBU and MADI format outputs. Similar to Milan-AVB, the AES67 input mode also provides seamless redundancy for further peace of mind.

  • Page 8: How To Use This Manual

    Introduction How to use this manual The LC16D owner's manual is intended for all actors involved in the system design, implementation, preventive and corrective maintenance of the LC16D product. It must be used as follows: 1. Read the technical description for an overview of all product elements, their features, and their compatibilities.

  • Page 9: System Components

    Network audio converter Cables DBM2 LC16D input cable (1 DB25 male to 8 XLR male, AES59 8-way pinout, AES/EBU grade) Length: 2 m / 6.6 ft DBF2 LC16D output cable (1 DB25 male to 8 XLR female, AES59 8-way pinout, AES/EBU grade) Length: 2 m / 6.6 ft...
  • Page 10 System components Software applications LC16D L-Acoustics USB Terminal Milan Manager Hive AVB Controller embedded Device Scanner Web interface LC16D owner's manual (EN) version 4.0...

  • Page 11: Technical Description

    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, AES67 inputs, network I/O, and PoE (Power over Ethernet) inputs LC16D owner's manual (EN) version 4.0...

  • Page 12: Power Supply

    Power supply LC16D power supply offers three redundant possibilities. LC16D is equipped with a universal Switched Mode Power Supply (SMPS) suitable for mains from 100 V AC - 240 V AC (± 10%), 50 Hz - 60 Hz. LC16D is a Class 3 Powered Device (PD) featuring seamless power redundancy between the mains input and PoE (Power over Ethernet).
  • Page 13 MADI (AES10-2003) LC16D can be fed with up to 64 AES10 digital audio signals (at 48 kHz) or 32 AES10 digital audio signals (at 96 kHz) using the MADI IN BNC connector. The input signals can be transmitted to the Milan-AVB output streams.

  • Page 14: Mapping

    AES/EBU and MADI. LC16D does not feature any DSP and as such, cannot be used to apply EQ, gain, delay, or mute functionalities. Use an AVDECC Controller (such as Milan Manager or Hive) to connect the Milan-AVB input streams to LC16D.

  • Page 15: Remote Control

    (p.26) 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. When switched to AES67 network audio mode, LC16D can be used to convert AES67 input streams to MADI and AES/ EBU outputs for non AES67-capable devices.

  • Page 16: Inspection And Preventive Maintenance

    CHK - Cleanness (p.16) chassis and LEDs are not damaged connectors are not damaged CHK - Cleanness Equipment • air blower Procedure Clean the product through the side grills with an air blower. LC16D owner's manual (EN) version 4.0...

  • Page 17: Chk - Normal Start-Up Sequence

    Refer to the L-Acoustics Device Scanner user guide for more information. 4. If convenient, update the firmware to the latest version. Download the latest version of the firmware from the product page on www.l-acoustics.com. LC16D owner's manual (EN) version 4.0...

  • Page 18: 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 fixing material provided by the rack manufacturer to mount the device to the rack front rails.

  • Page 19: General Purpose I/O (Gpio)

    +12V OUT for powering a contact relay (45 mA maximum) chassis ground GPIO can be configured using the LC16D embedded Web interface. For more information, refer to Operation (p.26). LC16D owner's manual (EN) version 4.0...

  • Page 20: Power Over Ethernet

    In case of failure of the mains power supply, LC16D is powered through the first 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 21: 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 or AES67 network, and to be remotely controlled through the LC16D embedded Web interface.

  • Page 22: Aes/Ebu Audio

    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. The two DB25 female connectors are fitted with UNC 4-40 screw locks. LC16D owner's manual (EN) version 4.0...

  • Page 23: 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 4.0...

  • Page 24: Milan-Avb Or Aes67

    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 25: 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 as an AES67 to AES/EBU and MADI outputs converter MADI AES/EBU + MADI outputs...

  • Page 26: 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.21). During booting, all LEDs light up briefly in green or orange. Interpreting the front panel LEDs MAINS The MAINS LED displays the status of the mains input.
  • Page 27 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 28: Clock Reference

    In Milan-AVB mode: One Milan-AVB stream is selected as reference clock and locked. • In AES67 mode: The LC16D clock is locked on the PTP clock leader or is the PTP clock leader (elected grandmaster clock by the BMCA). Refer to PTPv2 (AES67 mode only) (p.45).
  • Page 29 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 4.0...
  • Page 30 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 4.0...

  • Page 31: Lc16D Embedded Web Interface

    Name 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 Milan Manager, Hive, or other AVDECC Controllers.

  • Page 32: Audio Overview

    Load audio configuration: Load the audio configuration saved into one of the 10 slots available in the LC16D memory. • Delete audio configuration: Delete one or all of the 10 audio configurations saved into the slots of the LC16D memory. •...
  • Page 33 (with no AVB switch in between), for example when used as front-end for monitor applications. The selection of the presentation time can be unavailable if the stream is already connected or if LC16D is locked by an AVB controller (such as Milan Manager or Hive).
  • Page 34 Media clock offset: enter a media clock offset. The media clock offset should be 0 unless the AES67 sender requires a specific setting. When LC16D is in redundant network mode, Multicast address and Remote RTP port for both primary and secondary streams can be set.
  • Page 35 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. LC16D owner's manual (EN) version 4.0...
  • Page 36 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 37 Operation The selection of the clock reference can be unavailable if LC16D is locked by an AVB controller (such as Milan Manager or Hive). Use an AVDECC Controller (such as Milan Manager or Hive) to connect the Milan-AVB input streams to LC16D.

  • Page 38: Avb Or Aes67 Input Mapping

    16 AES/EBU outputs and to the 32 or 64 MADI outputs (on the top). Use an AVDECC Controller (such as Milan Manager or Hive) to connect the Milan-AVB input streams to LC16D. Use the arrows to collapse or expand parts of the matrix table.

  • Page 39: Avb Output Mapping

    Milan-AVB or AES67 input streams 11-16 no channel mapped by default The input mapping can be unavailable if LC16D is locked by an AVB controller (such as Milan Manager or Hive). AVB output mapping Use the AVB output mapping tab to configure the mapping of the 16 AES/EBU inputs and the 32 or 64 MADI inputs (on the top) to the 16 Milan-AVB output streams (on the right).
  • Page 40 Milan-AVB output stream 10, channels 1-8 no channel mapped by default Milan-AVB output streams 11-16 The output mapping can be unavailable if LC16D is locked by an AVB controller (such as Milan Manager or Hive). LC16D owner's manual (EN) version 4.0...

  • Page 41: Gpio

    Use the GPIO tab to configure the LC16D GPIO. Refer to General Purpose I/O (GPIO) (p.19) 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: •...
  • Page 42 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 4.0...

  • Page 43: Settings

    Operation Settings The Settings tab gives access to panels to configure LC16D network, sampling rate, and LED brightness, and to update LC16D firmware. Network Use the Network panel to edit the network configuration of LC16D. Audio protocol Select the Audio protocol mode between Milan-AVB and AES67. Changing the Audio protocol mode reboots LC16D.
  • Page 44 • 192.168.0.1 to 192.168.255.254 LC16D must be using the same subnet and subnet mask as the control computer and the other units in the network. A gateway IP address is an advanced setting reserved for specific applications such as amusement parks, campuses, and multi-room venues with a centralized third-party supervision tool (Crestron, Q-SYS, etc.).
  • Page 45 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 46: Additional Actions

    The brightness of the LED can be modified to adapt to a very bright or very dark environment. Device info Use the Device info panel to check the version number and the date of the firmware currently installed on LC16D, update the firmware, and check the MAC address and the serial number of LC16D.

  • Page 47: Specifications

    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 4.0...
  • Page 48 Default latency: 3 packet times Maximum latency: 4 packet times Media clock Derived from the network grandmaster clock elected according to PTPv2 Control LC16D embedded Web interface, L-Acoustics Q-SYS plug-in AES/EBU Inputs Number of channels 16, with integrated ASRC Sampling rate 44.1 kHz to 192 kHz...
  • Page 49 1 ground pin, 3 chassis ground pins Service port 1 Micro USB L-Acoustics remote LC16D embedded Web interface, available through a network connection control software L-Acoustics Device Scanner, used with a network connection USB Terminal, used with a USB connection...
  • Page 50 -20 °C / -4 °F to 70 °C / 158 °F Operating -5 °C / 23 °F to 50 °C / 122 °F temperature Maximum altitude 2000 m Climate moderate, tropical Physical data Height Weight 2 kg/4.41 lb Finish black Protection rating IP3x LC16D owner's manual (EN) version 4.0...
  • Page 51 483 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 4.0...
  • Page 52 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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