DirectOut Technologies MADI.SRC User manual

DirectOut Technologies®
MADI.SRC
Version 1.4
Manual

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DirectOut Technologies
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Copyright Note
© 2014 DirectOut GmbH
Copyright
All rights reserved. Permission to reprint or electronically reproduce any docu-
ment or graphic in whole or in part for any reason is expressly prohibited, un-
less prior written consent is obtained from the DirectOut GmbH.
All trademarks and registered trademarks belong to their respective owners. It can-
not be guaranteed that all product names, products, trademarks, requisitions, regulations,
guidelines, specifications and norms are free from trade mark rights of third parties.
All entries in this document have been thoroughly checked; how-
ever no guarantee for correctness can be given.
DirectOut GmbH cannot be held responsible for any misleading or in-
correct information provided throughout this manual.
DirectOut GmbH reserves the right to change specifications at any time without notice.
DirectOut Technologies® and D.O.TEC® are registered trademarks of the DirectOut GmbH.
© DirectOut GmbH, 2014

Table of contents
ABOUT THIS MANUAL 4
How to Use This Manual 4
Conventions 4
CHAPTER 1: OVERVIEW 5
Introduction 5
Feature Summary 6
Applications 7
How it Works 7
CHAPTER 2: LEGAL ISSUES & FACTS 8
Before Installing This Device 8
Defective Parts/Modules 8
First Aid (in case of electric shock) 9
Updates 10
Intended Operation 10
Conditions of Warranty 10
Conformity & Certificates 11
Contact 11
Contents 12
Installing the Device 13
CHAPTER 3: OPERATION 16
Global Controls 16
Introduction 16
MADI IN 17
SRC 19
MADI OUT 21
Rear Panel 25
CHAPTER 4: OPERATING MODES 26
Introduction 26
Normal Mode 27
Split Mode 28
Auto Clock Range Select (ACRS) 29
CHAPTER 5: APPLICATION EXAMPLES 30
Introduction 30
Example 1: Independent Clock Sources 30
Example 2: Archiving / Remixing 31
CHAPTER 5: TROUBLESHOOTING AND
MAINTENANCE 32
Troubleshooting 32
Maintenance 33
CHAPTER 6: TECHNICAL DATA 34
APPENDIX A: CLOCKING TO MADI 36
INDEX 38
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Table of Contents
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About This Manual
How to Use This Manual
This manual guides you through the installation and operation of the
MADI.SRC.
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About This Manual
© 2014 DirectOut GmbH
Use the Table of Contents at the beginning of the manual or Index
Directory at the end of the document to locate help on a particular
topic.
You can access more information and latest news by visiting on the
DirectOut website at www.directout.eu.
Conventions
The following symbols are used to draw your attention to:
Tips – indicate useful tips and shortcuts.
Notes – are used for important points of clarification or cross refer-
ences.
Warning
Warnings – alert you when an action should always be observed.

CHAPTER 1: Overview
Introduction
Welcome to the MADI.SRC, DirectOut’s purpose designed solution
for real-time sample rate conversion of a MADI signal:
The MADI.SRC enables real time sample rate conversion of a com-
plete MADI stream (64 audio channels). The device includes 32
high quality stereo sample rate converters (SRCs), and supports all
source and destination sample rates from 44.1 kHz to 192 kHz, for
all MADI formats (48k/96k Frame, 56/64 channels, S/MUX).
Two pairs of MADI inputs and outputs are provided on optical con-
nectors (SC multi-mode) and coaxial connectors (BNC). In normal
mode, one of the inputs is active, with both outputs carrying the
converted input signal.
By activating the innovative Split Mode, inputs and outputs can
be used in combination to convert more than 32 (@ 96 kHz) or
16 (@ 192 kHz) channels, depending on the SRC setting.
Synchronisation may be achieved via word clock or AES3id (AES11),
Video Reference (PAL/NTSC), the MADI input signal, or using the
internal clock.
The device includes two phase-redundant power supplies; power
inlets and switches are located on the rear panel. The unit also fea-
tures a USB port, which can be used for remote control via Windows
software.
Note that the MADI input and output can be converted from opti-
cal to coaxial, or vice versa, using the SPLIT.CONVERTER. Please
visit the DirectOut website at www.directout.eu for further details on
this product.
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CHAPTER 1: Overview
© 2014 DirectOut GmbH

Feature Summary
MADI Ports 1 x Optical SC multi/single mode
connector (input / output)
1 x Coaxial BNC connector (input / output, 75 Ω)
MADI Formats 56/64 channel, 48k/96k Frame, S/MUX 2/4
Sample Rates 44.1, 48, 88.2, 96, 176.4, 192 kHz +/-12.5%
Clock Inputs 1 x word clock coaxial BNC
75 Ω termination switchable
This input also accepts an
AES3 frame (AES11)
1 x Video coaxial BNC
75 Ω termination switchable
Black Burst (PAL, NTSC)
Operating
Modes
Normal Mode: one input is active;
the outputs are fed in parallel.
Split Mode: inputs and outputs
are combined.
Remote
Operation:
USB 2.0 port for firmware updates
Power Supply This device is equipped with two wide
range power supplies (84 V to 264 V AC
/ 47 Hz to 63 Hz / safety class 1).
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CHAPTER 1: Overview
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Applications
The MADI.SRC may be used wherever high quality sample rate
conversion is required. The data stream is processed in real time
and all output channels are phase and sample accurate with refer-
ence to each other.
Because of its comprehensive features, the device can also be used
beyond ‘simple’ sample rate conversion. For example, if two digital
systems cannot use the same word clock source, the MADI.SRC
can be used as a decoupling device to connect both asynchronous
systems without any loss of audio quality.
With the SRC switched off, the device works as a simple format
converter, and provides different MADI formats at the output ports
(48k/96k Frame, 56/64 channel).
Typical applications include:
• Broadcast environments using different clock masters.
• Dubbing of multichannel signals for archiving
• Combination of two high sample rate streams to a single lower
sample rate stream (For example: 2 x 32 channels @ 96 kHz
=> 1 x 64 channels @ 48 kHz).
• Format conversion of signals (e.g. 48k Frame S/MUX <=>
96k Frame).
How it Works
The MADI.SRC provides sample rate conversion and conversion of
MADI signals as follows:
The MADI input signal is buffered and routed via the sample rate
converters (32 stereo SRCs) to the output. The output signal is
reclocked by the selected reference (internal, MADI, Video, word
clock or AES3id). The format (56 channel or 64 channel, 48k Frame
or 96k Frame) of the MADI input signal can be also modified with
the SRCs switched off.
In Split Mode, the MADI inputs and outputs are combined in order to
optimise the SRCs available. According to the settings of the SRC it
is possible to convert more than 32 (@ 96 kHz) or 16 (@ 192 kHz)
channels.
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CHAPTER 1: Overview
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CHAPTER 2: Legal issues & facts
© 2014 DirectOut GmbH
CHAPTER 2: Legal issues & facts
Before Installing This Device
Warning
Please read and observe ALL of the following notes before
installing this product:
• Check the hardware device for transport damage.
• Any devices showing signs of mechanical damage or damage
from the spillage of liquids MUST NOT be connected to the
mains supply, or disconnected from the mains immediately by
pulling out the power lead.
• All devices MUST be grounded. The device is grounded
through its IEC power connections.
• All devices MUST be connected to the mains using the three-
cord power leads supplied with the system. Only supply
electrical interfaces with the voltages and signals described in
these instructions.
• Do NOT use the device at extreme temperatures. Proper op-
eration can only be guaranteed between temperatures of 5º C
and 45º C and a maximum relative humidity of 80 %, non-
condensing.
• The cabinet of the device will heat up. DO NOT place the
device close to heating sources (e.g. heaters). Observe the
environmental conditions.
Defective Parts/Modules
Warning
This device contains no user-serviceable parts. Therefore do NOT
open the device.
In the event of a hardware defect, please send the device to your
DirectOut representative together with a detailed description of the
fault.
We would like to remind you to please check carefully whether the fail-
ure is caused by erroneous configuration, operation or connection be-
fore sending parts for repair. See „CHAPTER 5: Troubleshooting and
Maintenance“ on page 32 for assistance with troubleshooting.

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CHAPTER 2: Legal issues & facts
© 2014 DirectOut GmbH
First Aid (in case of electric shock)
Warning
• DO NOT touch the person or his/her clothing before power
is turned off, otherwise you risk sustaining an electric shock
yourself.
• Separate the person as quickly as possible from the electric
power source as follows:
Switch off the equipment.
Unplug or disconnect the mains cable.
• Move the person away from the power source by using dry
insulating material (such as wood or plastic).
• If the person is unconscious:
Check their pulse and reanimate if their respiration is
poor.
Lay the body down and turn it to one side. Call for a doc-
tor immediately.
• Having sustained an electric shock, ALWAYS consult a doc-
tor.

This document refers to fi rmware version 2.2
Intended Operation
The MADI.SRC is designed for conversion of format and sample
rate of MADI signals (AES10).
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CHAPTER 2: Legal issues & facts
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Updates
DirectOut products are continually in development, and therefore the
information in this manual may be superseded by new releases. To
access the latest documentation, please visit the DirectOut website:
www.directout.eu.
Warning
No compensation can be claimed for damages caused by operation
of this unit other than for the intended use described above. Con-
secutive damages are also excluded explicitly. The general terms
and conditions of business of DirectOut GmbH are applied.
Conditions of Warranty
This unit has been designed and examined carefully by the manu-
facturer and complies with actual norms and directives.
Warranty is granted by DirectOut GmbH over the period of two years
for all components that are essential for proper and intended opera-
tion of the device. The date of purchase is applied for this period.
Warning
All claims of warranty will expire once the device has been opened
or modified, or if instructions and warnings were ignored.
For warranty claims please contact the dealer where your device
was acquired.

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CHAPTER 2: Legal issues & facts
© 2014 DirectOut GmbH
Conformity&Certicates
CE
This device complies with the basic requests of applicable EU guide-
lines. The appropriate procedure for approval has been carried out.
RoHS
(Restriction of the use of certain Hazardous Substances)
This device was constructed fulfilling the directive on the restriction
of the use of certain hazardous substances in electrical and elec-
tronic equipment 2002/95/EC.
WEEE
(Directive on Waste Electrical and Electronic Equipment)
Due to the directive 2002/96/EC for waste disposal this device must
be recycled.
For correct recycling please dispatch the device to:
IMM Elektronik GmbH,
Leipziger Str. 32
09648 Mittweida
Germany
Only stamped parcels will be accepted!
WEEE-Reg.-No. DE 93924963
Contact
Sales:
DirectOut GmbH, Leipziger Str. 32, 09648 Mittweida, Germany
Phone: [phone] // Fax: [phone]
www.directout.eu
Manufacturer:
IMM Elektronik GmbH, Leipziger Str. 32, 09648 Mittweida, Germany
Phone: [phone] // Fax: [phone]
www.imm-gruppe.de

Contents
The contents of your MADI.SRC package should include:
• 1 x MADI.SRC (19’’, 1 RU)
• 2 x power chord
• 2 x fixing unit for power plug
• 1 x Manual
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CHAPTER 2: Legal issues & facts
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Installing the Device
1. Open the packaging and check that the contents have been
delivered complete and undamaged.
2. Fix the device in a 19’’ frame with four screws, or place it on
a non-slip horizontal surface.
3. Remove the protective caps from the optical MADI ports if
you wish to use it.
4. Connect the MADI and clock signals to the device:
• MADI 1 IN/OUT – optical connectors
• MADI 2 IN/OUT – coaxial connectors
• WCLK IN – BNC connector
• VIDEO IN – BNC connector
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Retain the protective cap if the optical port is unused. This will pro-
tect against soiling which can lead to malfunction.
Warning
Avoid damage from condensation by waiting for the device to adapt
to the environmental temperature. Proper operation can only be
guaranteed between temperatures of 5º C and 45º C and a maxi-
mum relative humidity of 80%, non-condensing.
Ensure that the unit has suffi cient air circulation for cooling.

8. Turn on the power switches for each supply and check the
status of PSU 1 and PSU 2 on the front panel:
7. Using the power cords provided connect PSU 1 and PSU 2
to a matching power supply:
6. Optional: Connect a USB cable to the USB port for fi rmware
updates. This requires the USB driver (Windows) being installed
fi rst. The driver and the installation instructions are available at
www.directout.eu.
Link: http://www.directout.eu/en/support/downloads/madi.src.html
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CHAPTER 2: Legal issues & facts
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This device may operate with only one power supply. To provide
power supply redundancy, it is recommended to connect both PSU 1
and PSU 2 to independent power supplies with separate fuses.
Warning
This device MUST be connected to the mains using the three-cord
power leads supplied with the system. Only supply the voltages and
signals indicated (84 V – 264 V).

Keep any packaging in order to protect the device should it need to
be dispatched for service.
While the device is booting the currently installed fi rmware version
is indicated by the MADI I/O leds - e.g. fi rmware version 2.1.
Use the Release Map to match your DirectOut device with the latest
fi rmware or software release.
Link: http://www.directout.eu/upload/dokumente/dotec_release_map.pdf
9. Installation of USB Serial driver
• download the USB Serial driver
• download the ‘Installation Guide for USB Control’
Link: http://www.directout.eu/en/support/downloads/madi.src.html
• follow the installation instructions in the ‘Installation Guide for
USB Control’
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To update the  rmware an installed USB serial driver (Windows) and
the Update Tool are necessary. The software and the installation in-
structions are available at www.directout.eu.

Chapter 3: Operation
Global Controls
The controls on the left of the front panel indicate the power supply
status and provide protection options:
PSU 1 & PSU 2 2 LEDs (green): indicate the status
of both power supply units
LED OFF = Power supply inactive
LED ON = Power supply active
REMOTE Lock LED (red): indicates state of Remote Lock
When active (LED ON), the device
cannot be controlled remotely via USB.
Press and hold the REMOTE Lock
button (for more than 2 seconds) to
change the remote lock status.
KEYS Lock LED (red): indicates state of Keys Lock
When active (LED ON), the device cannot
be controlled locally from the front panel.
Press and hold the KEYS Lock
button (for more than 2 seconds)
to change the key lock status.
Once you have confi gured the device, use REMOTE Lock to protect
the device from unwanted remote operation, or KEYS Lock to lock
out operation from the front panel controls.
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Chapter 3: Operation
© 2014 DirectOut GmbH
Introduction
This chapter describes the basic operation of the device.
Note that throughout this manual, the abbreviation FS refers to sam-
ple rate or sample frequency. So, when dealing with scaling factors,
the following sample rates can be written as:
• 44.1 kHz or 48 kHz = 1 FS
• 88.2 kHz or 96 kHz = 2 FS
• 176.4 kHz or 192 kHz = 4 FS
The green LEDs (PSU 1 & PSU 2) indicate that a working power
supply is connected to the power supply unit. Note that an unlit LED
does not guarantee that the device is free of voltage. To ensure
that the device is completely disconnected from mains voltage, the
power chords must be disconnected.

MADI IN
These controls select the operating mode and MADI input, and indi-
cate the sample rate and format of the MADI input signal. Two MADI
inputs and two operating modes are provided:
• In Normal Mode either MADI input may be selected.
• In Split Mode both MADI inputs can be used depending on the
combination of the input and output SRC selections.
SPLIT I/O LED (yellow): indicates
the operating mode:
LED OFF = Normal mode active
LED ON = Split Mode active
Press and hold the MADI IN button
(for more than 2 seconds) to
change the operating mode.
1 or 2
(Input Select)
2 LEDs (green): indicate the
selected MADI input.
In Normal Mode, press the MADI IN
button quickly to select an input (1 or 2).
LED OFF = input is not selected
LED ON = input is selected
LED blinking fast = no signal detected
Note that in Split Mode, both LEDs may
be lit (see „Split Mode“ on page 28).
See „Appendix A: Clocking to
MADI“ on page 36.
44.1 k or 48 k 2 LEDs (green): Indicate the sample
rate (base rate) of the MADI input.
The sample rate of the MADI input is
detected automatically and indicated
by either LED. Higher sample rates are
represented as a multiple of the base rate.
For example, if the input sample rate is
96 kHz (2 FS), then the 48 k LED is lit.
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Chapter 3: Operation
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56CH or 64CH 2 LEDs (green): Indicate the channel
format (at base rate) of the MADI input.
The channel format of the MADI input is
detected automatically and indicated by
either LED. At higher sample rates, the
number of available channels is reduced:
28 or 32 at 2 FS; 14 or 16 at 4 FS.
48kFr or 96kFr 2 LEDs (green/yellow): Indicate the
frame format of the MADI input.
The frame format of the MADI input is
detected automatically and indicated
by the 48k Frame LED (green)
or 96k Frame LED (yellow).
SYNC LED (green): indicates the sync state of
selected input (SRC OFF) or indicates
Sync to unselected MADI input:
LED OFF = no lock
LED ON = selected input signal is in
sync with chosen clock reference.
LED blinking fast = selected input signal
is not in sync with chosen clock reference
(SRC OFF). (In Split Mode, a  ashing
led indicates that MADI inputs 1 and
2 are not in sync with each other.)
See „Appendix A: Clocking to
MADI“ on page 36.
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Chapter 3: Operation
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SRC
Sample rate conversion is needed when:
• A signal shall be translated to a different sample rate.
• Two devices require their own independent clock source
(clock isolation).
The SRC controls define the scaling factor of input and output sam-
ple rate, and switch the SRCs in or out of circuit.
1 FS, 2 FS or 4 FS
(Input Scaling
Factor)
Button: Selects the scaling factor
for the input sample rate.
The sub code of a MADI signal does not
transmit the scaling factor of the sample
rate reliably, and therefore it must be
selected manually.
Press the button to select the correct
scaling factor for the input signal; the
LED lights accordingly: 1 FS (green),
2 FS (yellow) or 4 FS (white).
Note that the 96k Frame format denes
a 2 FS signal; if the scaling factor does
not match, then the 2 FS LED ashes.
OFF
(SRC ON / OFF)
Button: Turns sample rate conversion
on or off, or toggles bypass mode.
Press short to toggle the SRCs on or off.
Press longer than 2 seconds
to toggle bypass mode.
OFF
(SRC ON / OFF)
LED (red): indicates the activation state
of the SRCs and the bypass mode:
LED OFF = sample rate conversion active
LED ON = sample rate conversion
inactive, normal bypass active
LED blinking = sample rate conversion
inactive, true MADI bypass active
1 FS, 2 FS or 4 FS
(Output Scaling
Factor)
Button: Selects the scaling factor
for the output sample rate.
Press the button to cycle through the output
options; the LED lights accordingly: 1 FS
(green), 2 FS (yellow) or 4 FS (white).
Also note that if the Auto Clock Range
Select option is active, the scaling
factor will follow the word clock or
AES3id signal (see page 29).
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When the SRCs are switched off (SRC OFF), the input signal is
processed transparently (the input signal is buffered and refreshed).
Two bypass modes:
a) Normal - no sample rate conversion is applied, the signal
is refreshed/reclocked, but sync settings are relevant.
b) True - no sample rate conversion is applied, only the
MADI carrier is refreshed, the data format remains un-
changed. Sync settings are irrelevant.
Bypass mode ‘Normal’ still allows for format conversion:
48k Frame <=> 96k Frame, or 56 ch <=> 64 ch.
Pushing the SRC OFF button for more than 2 s toggles between
‘True MADI Bypass’ and ‘Normal Bypass’ or SRC operation.
Check the sync status of the MADI input and clock reference using
the SYNC LED as described in chapter „MADI IN“ on page 17.
The SRC processing delay amounts to about 2.5 ms. The delay
is equal for every channel; there is no change in phase between
channels.
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Chapter 3: Operation
© 2014 DirectOut GmbH