Chomatec MADI-xx Manual de usuario
MADI-xx
MADI converter and router networkable multi-channel audio monitoring
system
User’s Guide Version 0.807/01/2009
Chromatec MADI-xx
2009Michael Stevens & Partners Ltd
Michael Stevens & Partners Ltd. has made every effort to ensure the accuracy of information
contained within this document which is nevertheless supplied for information purposes only and
does not constitute any form of warranty or guarantee.
All trademarks acknowledged.
The information in this document is subject to change without notice.
Michael Stevens & Partners Ltd
Invicta Works
Elliott Road
Bromley
Kent
BR2 9NT
Tel: +44 (0)20 8460 7299
Fax: +44 (0)20 8460 0499
Email: sales@michael-stevens.com
web site: www.michael-stevens.com www.chromatec.com
Chromatec MADI-xx
2009Michael Stevens & Partners Ltd
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INTRODUCTION 1
Powerful alarms 3
Remote control, monitoring and configuration scheduling 3
Main features 4
THE ON-SCREEN DISPLAY 5
Bargraph scales 5
Alarm indicators 6
NETWORK REQUIREMENTS 6
Level and alarm streams 6
Audio streaming 7
OPERATION 8
OPERATING MODES 8
Normal mode 8
Menu mode 9
CONTROL BUTTON SUMMARY 10
MENU COMMANDS 11
Menu Navigation 11
Scales – analogue and digital scale types, reference value and colours 11
Level Bars – bar and label settings 12
Phase Bars – phase bar and multi-indicator settings 15
Alarms configuration 16
System – user config, IP settings, matrix setup, audio mon, screen res 18
About – Firmware and installed cards 22
INSTALLATION 23
POWER AND FUSES 23
HEALTH AND SAFETY CONSIDERATIONS 24
Disposal 24
INPUT CARD CONFIGURATIONS 25
Chromatec MADI-xx
2009Michael Stevens & Partners Ltd
CONNECTOR I/O 25
REMOVING THE TOP COVER 25
Audio I/O connector pin assignments 27
Supplied accessories 28
Options 28
UPGRADING FIRMWARE 29
USING SOFT-XX 30
CONFIG-xx 31
DISPLAY-xx 31
INSTALLATION GUIDE 33
System requirements 33
Initial Setup 34
PROBLEM SOLVING 35
Sample problems and their solutions 35
SPECIFICATION 38
Chromatec MADI-xx Introduction
2009Michael Stevens & Partners Ltd 1 Version 0.8
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The Chromatec MADI-xx is a 128 x 128 channel MADI router with integral multi-channel
audio metering and signal fault alarms for up to 128 channels.
It is designed for live sound theatres, concert halls, radio and TV and is supplied as a 1U
rack mounting frame.
MADI-xx Expansion Slots
It has two slots for optional external audio expansion using 32 channel analogue or
AES/EBU I/O cards. When fully expanded, the total usable matrix size is 192 x 128 (two I/P
cards), 128 x 192 (2 O/P cards) or 160x160 (1 I/P card and 1 O/P card).
Any of the MADI inputs or analogue or AES/EBU inputs or outputs (on a fully equipped
frame) can be converted to any of the three supported formats.
In addition, the MADI stream can be tapped into to break out up to 16 pairs of analogue or
AES/EBU audio for external processing. The processed audio can then be fed back into the
MADI stream.
Chromatec MADI-xx Introduction
2009Michael Stevens & Partners Ltd 2 Version 0.8
All audio level and alarm data can be viewed on a local display and streamed via a TCP/IP
network for remote visual monitoring.
Monitored parameters include audio level, audio-loss, carrier-loss (when using AES/EBU
inputs) over-level and sustained anti-phase between assigned channel pairs. Six industry
standard audio meter types are supported and each meter can have its own range colours,
break points and reference level and a choice of peak hold and phase correlation functions.
An on-screen menu provides access to all parameters.
Up to four pairs of audio channels can be selected for audible monitoring. These can be
streamed over the TCP/IP network and are available in both analogue and AES/EBU formats
via an optional monitor output card.
Chromatec MADI-xx Introduction
2009Michael Stevens & Partners Ltd 3 Version 0.8
Powerful alarms
Alarm settings and thresholds can be set independently for each channel or pair of channels.
This allows different alarm configurations for different programming such as pop, classical
music, news, sport, movies and drama. Not only does this significantly reduce the
occurrence of false alarms, but the entire gamut of MADI-xx settings, including alarm
settings, meter types and colours, can be scheduled to change over a 24 hour period using
optional SOFT-xx PC software.
Remote control, monitoring and configuration scheduling
Although the MADI-xx is designed to be used as a stand-alone monitor it may also be used
with control and monitoring software to monitor and configure multiple units over a network.
The optional Windows PC software (SOFT-xx) provides multiple frame integration,
automated control, event logging, configuration scheduling, real time diagnostics and
unlimited user setups. It also acts as a desktop meter bridge by rendering analogue and
digital audio meters and alarms to screen for multiple frames.
Channels can be named for ease of use and associated with alarms and analogue or digital
meters as required.
Other optional networked monitor accessories are available to further enhance the
monitoring of multiple audio streams in multi-channel control rooms.
For example, the ALARMS-xx remote alarm reads up to 32 channels ofalarm data from a
single MADI-xx or AM-xx frame.
The unit has front panel LED indicators which show each type of alarm condition for each
channel. ALARM-xx units may be easily cascaded to monitor more channels.
REMOTE-xx is a 1U hard wired remote control panel which replicates the front panel keys to
allow MADI-xx or AM-xx to be mounted away from the main operational position.
Both REMOTE-xx and ALARMS-xx can be connected via LAN or RS422.
Audio level and alarm data may also be distributed over a LAN to other devices that can
render audio meter bargraphs and alarm status information to screen and the protocol used
is available by request.
Available accessories include audio input breakout cablesfor converting from XLRs (or
BNCs in the case of unbalanced AES/EBU) to 25 way and 37 way D connectors.
Chromatec MADI-xx Introduction
2009Michael Stevens & Partners Ltd 4 Version 0.8
Main features
192x192 router allows any input to be switched to any output
2 x Coaxial & 2 x Optical64 channel MADI interfaces for 128 MADI channels
Optional external 32 channel audio I/O interface cards
Optional SOFT-xx control, source/bar labelling, monitoring and configuration scheduling software
for use with multiple units over a LAN
DVI-I graphical output for audio metering and system menu
Optional audible monitor output card for 4 analogue and digital pairs from any source
Audio streaming for up to 4 channel pairs via TCP/IP
DIN PPM, BBC PPM, NORDIC PPM, VU, VU EXTENDED, AES/EBU scale types each with their
own ballistics, range colours, break points and level reference
On-screen bargraphs may be grouped according to signal type or manually assigned to sources
irrespective of signal format
Sources can be named with up to 16 alpha-numeric characters
Per channel alarms for audio carrier loss, over and under level & anti-phase
Phase bar assignable to any channel pair
On-screen menu for unit configuration
1U rack-mountable
Keyboard socket for custom labels
Works with optional dedicated hardware monitoring units
Available accessories include audio I/P breakout cables to XLR / BNC
Chromatec MADI-xx Introduction
2009Michael Stevens & Partners Ltd 5 Version 0.8
The on-screen display
The MADI-xx meter/alarm display provides a visual status display of up to 128 channels in
two rows of 64 channels each. Each row can be assigned to display MADI input 1 or 2, or
or the input External bus. If the second row is set to Off, the first row is rescaled to fill
the screen.
The MADI-xx Meter/Alarm Display – default colours and break points
Break points and colours used for the upper and lower ranges of each bar type can be
customised to satisfy any in-house monitoring stylefor each of the six scale types.
Bargraph scales
The following audio scales are supported:
Available meter scales
Note: Each bar type can have different range colours, break points and level reference.
Chromatec MADI-xx Introduction
2009Michael Stevens & Partners Ltd 6 Version 0.8
Where optional external audio cards are installed and preferences for different scale types has been
detected, external channels are placed automatically into two groups according to signal type. This is
dealt with in detail in the Analogue and digital groups section in the Operation chapter.
Alarm indicators
Flashing mini-alarms can be assigned to the bargraphs for under-level, over-level, anti-phase
and no-carrier (AES only).
The colours used are as follows:
Audio Loss: Yellow – position (left or right) indicates channel
Audio Over: Red – position (left or right) indicates channel
Anti-Phase:Cyan – middle alarm
Carrier Loss: White – middle alarm
If carrier loss occurs only that alarm will flash, unless audio loss had already been active for
the same channel.
Note: There are also mini-phase bars which can be turned on for each bar. The colours for in-
phase and out-of-phase are customisable.
Network requirements
There are many ways networks can be configured and a hard and fast rule is hard to make
as both latency and bandwidth will affect operation. Bandwidth requirements can be
calculated from are the sum of the alarm and level data together with any streamed audio
monitoring feeds.
A MADI-xx frame being monitored by SOFT-xx will require up to 455kbps at startup
assuming one monitoring application and no streamed audio. Further monitoring applications
will require up to 370kbps each.
Streamed audio bandwidth is dependent on monitoring audio quality and the number of
stereo pairs being monitored. Full bandwidth quality requires 1.6Mbps for each stereo pair so
the maximum bandwidth needed for four stereo pairs would be 6.4 Mbps. This figure must be
added to the bandwidth needed for all of the Monitoring applications expected to be active at
one time. The next section discusses bandwidth requirements in more detail:
Level and alarm streams
Level and alarm streams use unicasting for every monitoring session invoked.
Stream Data Rate
Audio and phase levels plus alarms 370kbps
Alarm data only 85kbps
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