Lynx Studio LT-MADI User Manual
User Manual
Please Note: The LT-MADI requires your Aurora converter to have Firmware Version 24 or
later. Any Aurora shipped from Lynx Studio Technology prior to September 9th, 2009 will have
previous firmware installed in it.
For information about updating the Aurora’s firmware to a compatible revision, see Section 3.3
Operation Requirements.
Lynx Studio Technology, Inc.
www.lynxstudio.com
support@lynxstudio.com
User Manual
Table of Contents
1 Introduction............................................................................................................................. 1
2 Features................................................................................................................................... 1
3 Before You Begin................................................................................................................... 2
3.1 Contents .......................................................................................................................... 2
3.2 Optional Equipment........................................................................................................ 2
3.3 Operation Requirements ................................................................................................. 2
4 Nomenclature used in this manual.......................................................................................... 3
5 Warranty Registration.............................................................................................................3
5.1 Locating the Serial Number of Your LT-MADI............................................................. 3
6 Installation Procedure ............................................................................................................. 4
7 External Connections............................................................................................................ 10
7.1 MADI 56/64 Channel Modes........................................................................................ 10
7.2 LT-MADI 16/32-channel modes .................................................................................. 12
7.2.1 16-channel mode................................................................................................... 12
7.2.2 32-channel mode................................................................................................... 12
7.2.3 Switching and verifying mode.............................................................................. 13
7.2.4 What about an Aurora 8?...................................................................................... 13
7.3 Connector Types........................................................................................................... 14
7.4 Configuring Multiple Auroras...................................................................................... 14
7.4.1 Unit ID Switch...................................................................................................... 15
7.4.2 Delay Compensation............................................................................................. 16
7.4.3 Unit Bypass........................................................................................................... 16
7.4.4 Daisy-Chaining Units............................................................................................ 16
7.4.5 Possible Combinations..........................................................................................17
8 Clock Settings....................................................................................................................... 19
9 Routing and Channel Mapping............................................................................................. 21
9.1 Routing Logic ............................................................................................................... 21
9.1.1 MADI Output Routing.......................................................................................... 21
9.1.2 Input Routing........................................................................................................ 22
10 Updating the firmware on the LT-MADI ......................................................................... 26
11 Specifications.................................................................................................................... 27
12 Support.............................................................................................................................. 28
12.1 Lynx Website Support Resources.................................................................................28
12.2 Telephone Support........................................................................................................ 28
12.3 Registering your LT-MADI.......................................................................................... 28
12.4 Return Policy ................................................................................................................ 28
13 Warranty Information ....................................................................................................... 29
1 Introduction
Thank you for purchasing the LT-MADI™! We are proud to provide you with a reliable,
professional-quality product for your digital audio requirements.
This manual provides basic information to help you get started. Additional information is
available via our web site and email support. Please refer to Section 12, Support, at the end of
this manual for support contact information.
The LT-MADI is a 64-channel LSlot interface that is designed to allow the Aurora professional
audio AD/DA converters to be used with MADI (Multichannel Audio Digital Interface)
compatible mixers, multi-track recorders and other audio devices. The LT-MADI features
coaxial and optical connections, allows synchronization to MADI input streams, and allows
daisy-chaining of LT-MADI equipped Auroras. Each LT-MADI card can be configured for 56 or
64 channel operation. Connections up to 100 meters with coaxial cable and 2000 meters with
fiber optic cable are supported.
2 Features
¾ Two BNC/Coaxial and Two SC-Type Optical connectors per card.
¾ Each LT-MADI card is capable of up to 64-channels of I/O at sample rates up to 48kHz, 32-
channels at 88.2/96kHz, and 16-channels at 176.4/192kHz.
¾ An Aurora 16 can be configured for 32-channel or 16-channel operation. In 32-channel
mode, all Analog AND AES/EBU channels can be routed to and from MADI I/O. In 16channel mode, Analog OR AES/EBU channels can be routed to and from MADI I/O. An
Aurora 8 will only operate in 16-channel mode, using 8 analog and 8 AES/EBU channels.
¾ Up to four Auroras can be daisy-chained together for a maximum of 64 channels of I/O.
¾ Lynx proprietary SynchroLock™ technology can be used to reduce jitter when Aurora is a
clock slave or to provide stable, low jitter clock to downstream devices. This is especially
important and highly recommended for MADI clocking due to its inherent high jitter level.
¾ Supports MADI 64-channel operation as well as legacy 56-channel operation.
¾ Routing and configuration options available via Aurora Remote Control software application.
¾ Supports Cable lengths up to 100 meters with coaxial, and up to 2000 meters with fiber optic
cable.
¾ Programmable firmware onboard allows field updates to expand device utility and features.
¾ Automatic Delay Compensation insures sample accuracy with multiple, daisy-chained
Auroras.
¾ Easily installed into Aurora.
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3 Before You Begin
We recommend that you read through the manual to acquire an overview of the installation
procedure and use of the LT-MADI. This manual will presume a working knowledge of the
Aurora converter. For additional information, please refer to the Aurora owner’s manual.
3.1 Contents
Verify that you received the following in the LT-MADI shipping carton:
• LT-MADI card in cushioned antistatic bag
• Warranty Registration Card
• Lynx Installation CD
• 1/2” Standoff Post
3.2 Optional Equipment
75-ohm Coaxial Cable with BNC connectors or Fiber optic cable for connection to MADI
devices.
3.3 Operation Requirements
The LT-MADI requires your Aurora converter to have Firmware Version 24 or above. This
should be verified prior to installing and configuring the LT-MADI card. To determine what
firmware revision your Aurora has, press the TRIM and POWER buttons at the same time with
the power to the Aurora off. If the LED flashes over the numbers 2 & 4 or above (i.e. 2 & 5, 3 &
1, etc.), then your unit is compatible with the LT-MADI. If pressing Power and Trim does not
cause any LEDs to flash, or causes a single number to flash, then your unit needs to be updated.
The Aurora firmware can be updated by a Windows PC or OSX Macintosh with a Lynx AES16
PCI audio interface installed, or via MIDI (note: firmware revision 13 or above is required for
MIDI programming). The Aurora firmware updater program is available for download from the
Lynx website at Support > Downloads. If your unit requires an AES16 to update because it has
firmware revision 12 or earlier, and you do not have access to one, there are two options for
customers within the USA and Canada:
• Option 1: Send the Aurora and LT-MADI to Lynx Studio Technology in California. We
will update the Aurora, install the LT-MADI and do a full diagnostic test within one day
of receipt. It will be return shipped via 2-Day Air.
• Option 2: Lynx Studio Technology will loan you an AES16 for updating the firmware in
your Aurora. For more information on the procedure and any questions, contact
support@lynxstudio.com or call 714-545-4700 extension 206.
If you are outside of the USA or Canada, please contact your local distributor for
additional firmware update options.
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4 Nomenclature used in this manual
The following typographic conventions are used in this manual:
¾ ALL UPPER CASE TEXT refers to a specific parameter selection control (i.e. SYNC
SOURCE) or a cable connection.
¾ Text in quotation marks indicates a parameter selection value or menu option (i.e. “EXT”).
¾ Phrases, such as: Click Setups Mixer > About Aurora Remote…, use the greater than symbol
(“>”) to indicate multiple menu options or mouse selections within a software control
context.
5 Warranty Registration
We are committed to providing you with the best service possible. To help us serve you better,
please be sure to register your LT-MADI using one of the following methods:
• Fill out and mail the Warranty Registration Card included with your LT-MADI.
• Register on the web at:
https://www.lynxstudio.com/support_register.asp
Once you are registered you will automatically receive notifications of new products and
upgrades.
5.1 Locating the Serial Number of Your LT-MADI
To register your LT-MADI, you must supply its serial number. The serial number is located on a
label attached to the back (solder-side) of the LT-MADI board, and also on the shipping carton.
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6 Installation Procedure
1. Remove the AC power cord and take the top off of the Aurora 16 or Aurora 8. There are
seven large screws plus one small screw near the center of the front faceplate.
2. Before installing the LT-MADI card, slide switch 4 (labeled W4 on PCB) of SW1 to the
OFF position (towards back panel)
If you are updating an older Aurora that has jumper pins at JP6, instead of the W4
switches, please call Lynx Technical Support for instructions.
3. Remove the LSlot Expansion Port cover above the AES I/O Ports by removing the two
mounting screws. Set these two screws aside, as they will be used to secure the LTMADI after installation.
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4. Remove the screw from the Aurora circuit board that is adjacent to the JP1 connector and
the white serial number/barcode label. Set the screw aside for reuse.
5. Install the standoff post (included with the LT-MADI) in this same hole.
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6. Grounding yourself to the earth ground, remove the LT-MADI from its protective static
bag.
7. Set the appropriate dip switches on the LT-MADI. These settings are specific to the
context of use, so it is strongly encouraged to read the associated sections of the manual
before determining which settings are correct. The following settings are configured from
the Dip Switches on the LT-MADI card:
Device Order: These switches establish whether the Aurora is to be used as the only
device in the MADI system, or within a multiple Aurora configuration. See Section 7.4.1
Unit ID Switch for a detailed explanation.
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Note that when the Aurora is the only MADI device connected, switch SW3 should be
OFF and switches SW1 and SW 2 should be ON (this is the default state for a new LTMADI card). When multiple Auroras are used, each needs a unique device ID to be
correctly integrated, and SW3 should be ON. The table below will describe the pertinent
switch settings for single unit mode and any of the four device IDs:
SW1 SW2 SW3 UNIT_ID SWITCH
Back of Aurora
ON C&K SDA04
ON ON OFF Single Aurora
1 2 3 4
Back of Aurora
ON C&K SDA04
ON ON ON Device 0
1 2 3 4
Back of Aurora
ON C&K SDA04
OFF ON ON Device 1
1 2 3 4
Back of Aurora
ON C&K SDA04
ON OFF ON Device 2
1 2 3 4
Back of Aurora
ON C&K SDA04
OFF OFF ON Device 3
1 2 3 4
16-channel mode: This is applicable to an Aurora 16 that is configured for 16-channel
mode. It is not applicable for an Aurora 8 or an Aurora 16 in 32-channel mode. For an
explanation of 16 and 32-channel mode, see Section 9.1.1 MADI Output Routing. The
SW4 determines whether the Aurora’s ANALOG or DIGITAL Inputs will route to the
16-channel MADI stream. For more information, see Section 9.1.1.2 Aurora 16 in 16channel mode.
SW4 Selection when in 16-channel mode SWITCH
Back of Aurora
ON C&K SDA04
OFF DIGITAL INPUT
1 2 3 4
Back of Aurora
ON C&K SDA04
ON ANALOG INPUT
1 2 3 4
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