Solid State Logic MADI Bridge User Manual
MADI Bridge User Guide Contents
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are ® registered trademarks of Solid State Logic.
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are ™ trademarks of Solid State Logic.
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and are hereby acknowledged.
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electronic,without the written permission of
Solid State Logic, Oxford, OX5 1RU, England
As research and development is a continual process, Solid State Logic reserves the right to change
the features and specifications described herein without notice or obligation.
Solid State Logic cannot be held responsible for any loss or damage arising directly or indirectly from
any error or omission in this manual.
PLEASE READ ALL INSTRUCTIONS, PAY SPECIAL HEED TO SAFETY WARNINGS.
E&OE
June 2018
Document Revision History
FIRST VERSION
Revision 1.0
March 2014
SECOND RELEASE
Split mode MADI and SRC functions included
November 2014
THIRD RELEASE
MADI Control Mode added and format revision
June 2018
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MADI Bridge User Guide Contents
Table of Contents
Introduction 4
Overview 4
Key Features 4
MADI Bridge Front Panel 4
MADI Bridge Rear Panel 4
Virtual Headphone Patch 5
Audio Channel Names 5
Usage Cases 6
MADI Connectivity for a System T
Network 6
Dante Network I/O Integration for MADI
Consoles 6
Leveraging Existing Network
Infrastructure 6
Building a Distributed and Expandable
MADI Router 7
Redundant or Split Mode MADI 7
Hardware Connections 8
Mains Power Connections 8
Dante Connections 8
MADI 8
Clock 9
GPIO 9
Software Features 10
Info Menus 10
LOCK 10
MON 11
Options Menus 12
Error Indication 12
MADI 13
REDU 14
CLOCK 15
SRATE 16
MODE 17
Dante Controller 18
Network Config 18
Device Info 18
User and Control Bit Pass-Through 19
Brooklyn Reset 19
Clocking Scenarios 20
Network of Consoles With House Sync 20
Clocking from the Network 20
Appendix A – Specifications 21
Physical 21
Ventilation 21
Group Delay 21
Appendix B - Supported Sync Rates 22
Unsupported Rates 22
Appendix C - MADI Split Monitoring 23
Appendix D - GPIO Pinouts 27
Appendix E – Safety Notices 28
General Safety 28
Installation Notes 28
Power Safety 29
For EU 29
Environmental Declaration 30
RoHS Notice 30
For USA 30
Electromagnetic Compatibility 30
Environmental 30
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MADI Bridge User Guide Contents
Introduction
Overview
MADI Bridge is an interface between a routable Audio-over-IP network and MADI (AES10). SSL
Network I/O products use Audinate’s Dante technology to transport audio, plus discover and
configure multiple devices on the network. Using Dante results in seamless and reliable
interoperability with third party Dante products, this is further expandable with AES67 compatibility.
With 64 channels per MADI Bridge (at 48kHz) and up to 512 channels per 1Gb network link, Dante is
fully scalable and capable of providing routing channel counts from tens to thousands and beyond
using standard IT infrastructure. Redundant PSUs, MADI and IP Network ports mean the MADI
Bridge is built for uninterrupted operation, keeping critical devices and audio paths functioning
throughout the system. In addition to the inbuilt clock redundancy options in Dante Controller, the
MADI Bridge also includes a pair of redundant sync inputs for use as a self-redundant Dante Grand
Master clock.
The MADI Bridge features a front panel headphone socket (with rotary level control) and inbuilt
headphone monitor routing, to replace traditional patchbay routing and fault finding functionality
with equivalents in the IP audio domain. Simple front panel controls facilitate routing mono or stereo
paths from MADI In, MADI Out, Dante In or Dante Out directly to the headphones. A front panel
OLED screen provides signal present metering, selectable to show four points in the signal chain:
MADI In, MADI Out, Dante In and Dante Out. GPIO connections allow the transfer of tallys and
switching functions across the same network as the audio.
Key Features
● Interface between MADI and IP Audio Networks using Dante and AES67
● Bi-directional sample rate conversion between any asynchronous sample rates, from 44.1kHz
to 192kHz
● Redundant PSUs, MADI ports, Dante ports, sync inputs
● MADI Split Mode
● GPIO connectivity - embed tallies across the network
● Redundant Network Extension ports - add local IO or control without a switch
● Wordclock out - clock a MADI device to the Dante network
● Virtual Headphone Patch
● Lockout mode - prevent accidental alteration of front panel settings
MADI Bridge Front Panel
MADI Bridge Rear Panel
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MADI Bridge User Guide Contents
Virtual Headphone Patch
Monitoring and signal present metering is provided for incoming and outgoing MADI and Dante
ports. It replaces patchbay based routing with a digital network whilst retaining confidence and fault
finding tools.
Audio Channel Names
The name of the signal (as set in Dante Controller) being transmitted or received over the network
can be displayed in the status and monitoring window for the selected channels.
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MADI Bridge User Guide Contents
Usage Cases
N.B. The following diagrams omit secondary network connections for clarity.
MADI Connectivity for a System T Network
This provides MADI connectivity available to all networked System T consoles. The MADI Bridge can
also be used as a clock master for the Dante network or to provide external TDM devices with a
clock source.
Dante Network I/O Integration for MADI Consoles
This allows the addition of Dante networked devices to existing MADI infrastructure.
Leveraging Existing Network Infrastructure
Up to 8 MADI streams can be transmitted through 1Gb bandwidth - 512 channels at 48 kHz in each
direction.
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MADI Bridge User Guide Contents
Building a Distributed and Expandable MADI Router
Redundant or Split Mode MADI
The secondary MADI input can be used as a redundant backup of the primary input, or as a second
MADI input when in Split Mode. Here the MADI channel allocation is divided between the ports,
dependant on the MADI and Dante sample rates. Full Split Mode channel allocation details are shown
in Appendix C .
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MADI Bridge User Guide Contents
Hardware Connections
Mains Power Connections
The MADI Bridge includes redundant PSUs with IEC connectors; either supply can
individually power the unit. Ideally these should be connected to separate power
circuits to provide redundancy of incoming AC power.
Dante Connections
MADI Bridge has two redundant sets of network connections.
Note: Some Dante devices allow Dante ports to be set to Switched mode rather than Redundant
mode. MADI Bridge uses the extension ports to provide this functionality, without loss of
redundancy.
Never connect Primary and Secondary ports to the same single Dante network.
MADI
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MADI Bridge User Guide Contents
Clock
See CLOCK for setup details and Clocking Scenarios for additional information.
GPIO
4 General Purpose opto-coupled inputs and 4 General Purpose relay
outputs allow embedding and de-embedding of logic signals across the
network.
See Appendix D for pinout information.
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