L-Acoustics L-ISA Processor II User manual

L-ISA Processor II
owner's manual (EN)

Document reference: L-ISA Processor II owner's manual (EN) version 1.0
Distribution date: March 22, 2022
© 2022 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.

Contents
Safety................................................................................................................................................................ 6
Important safety instructions....................................................................................................................... 6
Symbols on the product.............................................................................................................................7
Introduction........................................................................................................................................................ 8
L-ISA Processor II...................................................................................................................................... 8
How to use this manual............................................................................................................................ 8
Revision history.........................................................................................................................................9
System components...........................................................................................................................................10
Technical description......................................................................................................................................... 12
Main features......................................................................................................................................... 12
Front and rear panels....................................................................................................................12
Signal processing....................................................................................................................................13
Signal inputs.................................................................................................................................13
Signal outputs............................................................................................................................... 14
DSP architecture............................................................................................................................14
USB ports...............................................................................................................................................15
Power supply..........................................................................................................................................15
Monitoring and control............................................................................................................................15
User interface............................................................................................................................... 15
Remote control network..................................................................................................................15
Inspection and preventive maintenance...............................................................................................................16
How to do preventive maintenance.......................................................................................................... 16
External structure.....................................................................................................................................16
Cleanness...............................................................................................................................................17
Normal start-up sequence........................................................................................................................ 17
Network functionalities and rmware........................................................................................................17
Installation........................................................................................................................................................18
Mounting................................................................................................................................................18
Ventilation.............................................................................................................................................. 19
Audio and network cabling..................................................................................................................... 20
Connection panels.........................................................................................................................20
Network conguration................................................................................................................... 21
Connecting to AC mains......................................................................................................................... 22
Electrical specications.................................................................................................................. 22
Power cord...................................................................................................................................22
3

Plugging to AC mains................................................................................................................... 23
Power consumption........................................................................................................................23
Operation........................................................................................................................................................ 24
Powering on/off..................................................................................................................................... 24
Front panel LEDs.....................................................................................................................................24
CONTROL.................................................................................................................................... 24
STATUS........................................................................................................................................ 25
SYNC.......................................................................................................................................... 25
WORD.........................................................................................................................................25
IN/OUT....................................................................................................................................... 26
Emergency USB key................................................................................................................................ 26
Preparing and updating the emergency USB key..............................................................................26
Rebooting L-ISA Processor II using the emergency USB key................................................................ 27
Other operations.....................................................................................................................................27
Corrective maintenance..................................................................................................................................... 28
Introduction.............................................................................................................................................28
Presentation.................................................................................................................................. 28
Equipment and tools......................................................................................................................28
Screws and fasteners repair kit...................................................................................................... 29
Troubleshooting and diagnosis................................................................................................................. 29
Power issues................................................................................................................................. 29
Interface issues..............................................................................................................................29
Network issues..............................................................................................................................30
Sound issues.................................................................................................................................30
L-ISA Processor II exploded view.............................................................................................................. 32
External modules...........................................................................................................................32
Disassembly and Reassembly procedures.................................................................................................. 33
D/R - Grill....................................................................................................................................33
D/R - Handles.............................................................................................................................. 34
D/R - Front brackets......................................................................................................................35
D/R - Rear brackets...................................................................................................................... 36
D/R - Rear brackets support screws................................................................................................ 37
D/R - Rear connectors brackets...................................................................................................... 38
Specications................................................................................................................................................... 39
General................................................................................................................................................. 39
Inputs and outputs...................................................................................................................................39
Remote control and monitoring.................................................................................................................40
Physical data..........................................................................................................................................40
4

Appendix A - Glossary..................................................................................................................................... 42
Appendix B - Approvals....................................................................................................................................43
5

Safety
Safety
Important safety instructions
Inspect the product before operation.
If any sign of defect or damage is detected, immediately withdraw the product from use for maintenance.
Perform preventive maintenance at least once a year.
Refer to the preventive maintenance section for a list of actions and their periodicity.
Insufcient upkeep of the product can void the warranty.
Verify the electrical conformity and compatibility of the mains supply.
Only connect the product to an AC power outlet rated 100-240 V, 50-60 Hz.
The product draws 150 W (typical).
WARNING: The product is of Class 1 construction and shall be connected to a mains socket outlet with a
Protective Earth connection.
When the product is used in a three-phase circuit, verify the electrical conformity and
compatibility of the three-phase circuit.
Verify that the three phases work, and balance the loads between the three phases.
Verify that the neutral and earth work.
Never try to emulate a 230 V circuit connecting an apparatus to two live wires of a 120 V three-phase circuit.
Never try to emulate a 200 V circuit connecting an apparatus to two live wires of a 100 V three-phase circuit.
Never incorporate equipment or accessories not approved by L-Acoustics.
Read all the related PRODUCT INFORMATION documents shipped with the products before
exploiting the system.
Intended use
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.
Check www.l-acoustics.com on a regular basis to download the latest document and software updates.
Beware of sound levels.
Do not stay within close proximity of loudspeakers in operation.
Loudspeaker systems are capable of producing very high sound pressure levels (SPL) which can instantaneously
lead to permanent hearing damage to performers, production crew and audience members. Hearing damage
can also occur at moderate level with prolonged exposure to sound.
Check the applicable laws and regulations relating to maximum sound levels and exposure times.
Do not use the product outside its operating temperature range.
The product operates at a room temperature between -5 °C / 23 °F and 50 °C / 122 °F.
Do not expose the product to direct sun.
Long term exposure to extreme conditions may damage the product.
For more information, refer to the Products weather protection document, available on the website.
Only use the product in a conformed electro-magnetic environment (EN55035 standard).
Avoid radio interference.
This product has been tested and complies with the limits indicated in the EMC directive (Electro Magnetic
Compatibility). These limits are designed to provide reasonable protection against harmful interference from
electrical equipment, but it cannot be guaranteed that interference will never occur.
6 L-ISA Processor II owner's manual (EN) version 1.0

Safety
Product disconnection
To completely disconnect this product from the mains, disconnect all power supply cord plugs from the mains
socket outlets.
Power supply cord and socket accessibility
The main plug of the power supply cord shall remain easily accessible.
The mains socket outlet shall be easily accessible.
Risk of start-up sequence failure
The HDMI port is only required for maintenance operations.
Do not use the HDMI port during normal operation of the processor.
Read the maintenance section of this document before servicing the product.
Contact L-Acoustics for advanced maintenance.
Any unauthorized maintenance operation will void the product warranty.
Shipping
Use the original packaging for shipping the product, unless it is mounted in a rack with the front and rear panels
xed to the rack, as described in this manual.
Symbols on the product
Explanation of graphical symbols
The lightning ash with arrowhead symbol within an equilateral triangle is intended to alert the user
to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of
sufcient magnitude to constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is intended to alert the user to the presence of
important operating and maintenance instructions in the literature accompanying the product.
Do not open unless authorized. This symbol indicates the presence of electrical shock hazards. It also
indicates that no maintenance performed by the end user requires access to internal components.
This marking indicates that this product should not be disposed of with other household waste
throughout the EU. To prevent possible harm to the environment or human health from uncontrolled
waste disposal, recycle it responsibly to promote the sustainable reuse of material resources. 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.
The device can be supplied by multiple sources of power. Disconnect all power supply cord plugs from
the mains socket outlets to fully disconnect this product from the mains.
L-ISA Processor II owner's manual (EN) version 1.0 7

Introduction
Introduction
L-ISA Processor II
L-ISA Processor II is a hardware solution dedicated to real-time spatial audio processing. It provides state of the art object-
based mixing to any immersive audio production from intimate installations to the largest tours. The processor has been
entirely redesigned for added robustness and greater resources, now offering 128 inputs and up to 128 outputs using
Milan-AVB and MADI protocols.
L-ISA Processor II can process up to 96 objects with spatial processing parameters (pan, width, distance, elevation) and
the patent-pending room engine. Improving upon its predecessor, these objects can be rendered to up to 128 outputs at
96 kHz. To adapt to any project or production size and budget, L-ISA Processor II introduces a scalable licensing model
that offers license packs with 16, 32, 64 and 128 outputs, which can be upgraded as needed.
The re-engineered chassis has been ruggedized with robust mechanics and locking connectors, and includes two
redundant universal power supplies. When required, a second processor can be used in mirror mode for further
redundancy. As a Milan-compliant device, L-ISA Processor II also ensures reliability for audio distribution with seamless
Milan network redundancy for all AVB streams.
L-ISA Processor II is remotely controlled and monitored using the L-ISA Controller software.
How to use this manual
The L-ISA Processor II owner's manual is intended for all actors involved in the system design, implementation, preventive
and corrective maintenance of the L-ISA Processor II product. It must be used as follows:
1. Read the technical description for an overview of all product elements, their features, and their compatibilities.
•Technical description (p.12)
2. Before installing the product, perform mandatory inspections and functional checks.
•Inspection and preventive maintenance (p.16)
3. To deploy the product, follow the step-by-step installation instructions and refer to the cabling schemes.
•Installation (p.18)
•Audio and network cabling (p.20)
4. To congure the settings and parameters of the product, follow the step-by-step operation instructions.
•Operation (p.24)
The Corrective maintenance (p.28) section contains the operations authorized for the end user.
Performing another operation exposes to hazardous situations.
For advanced maintenance, contact your L-Acoustics representative.
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.
Check www.l-acoustics.com on a regular basis to download the latest document and software updates.
8 L-ISA Processor II owner's manual (EN) version 1.0

Introduction
Contact information
For information on advanced corrective maintenance:
• contact your Certied Provider or your L-Acoustics representative
• for Certied Providers, contact the L-Acoustics customer service: customer.ser[email protected] (EMEA/APAC),
laus.ser[email protected] (Americas).
Symbols
The following symbols are used in this document:
This symbol indicates a potential risk of harm to an individual or damage to the product.
It can also notify the user about instructions that must be strictly followed to ensure safe installation or operation of
the product.
This symbol indicates a potential risk of electrical injury.
It can also notify the user about instructions that must be strictly followed to ensure safe installation or operation of
the product.
This symbol noties the user about instructions that must be strictly followed to ensure proper installation or
operation of the product.
This symbol noties the user about complementary information or optional instructions.
Revision history
version number publication date modication
1.0 Mar. 2022 Initial version.
L-ISA Processor II owner's manual (EN) version 1.0 9

System components
System components
Processor
L-ISA Processor II L-ISA multichannel audio processor
Networking
LS10 AVB switch
Cables
DOE cables Dual AVB Network cable CAT6A, etherCON (black = primary network, red = secondary
network)
Come in different sizes: DOE2 (2 m / 6.6 ft), DOE45 (45 m / 147.6 ft), and DOE100 (100
m / 328.1 ft)
In AVB networks, for lengths greater than 80 m / 262 ft from the processor to the listeners, add LS10 as a relay
in between.
Software applications
L-ISA Controller Software suite for object-based mixing and remote control of L-ISA processors
Refer to the L-ISA Controller help.
System component illustrations
Cables
2 m / 45 m / 100 m
red
black
red
black
6.6 ft / 147.6 ft / 328.1 ft
DOE cables
Software applications
L-ISA Controller
10 L-ISA Processor II owner's manual (EN) version 1.0