RME Audio ADI-192 DD User Manual
User's Guide
ADI-192 DD
SyncAlign®
SyncCheck
Intelligent Clock Control
SteadyClock
Hi-Precision 24 Bit / 192 kHz
8-Channel Triple Universal Format Converter
8-Channel Sample Rate Converter
ADAT
®
optical - TDIF™ - AES/EBU Interface
®
™
™
TDIF-1
24 Bit Interface
General
1 Introduction ...............................................................6
2 Package Contents.....................................................6
3 Brief Description and Characteristics.....................6
4 First Usage - Quick Start
4.1 Controls and Connectors.......................................7
4.2 Quick Start .............................................................8
4.3 The DD plain and simple........................................9
5 Warranty...................................................................10
6 Appendix..................................................................10
Usage and Operation
5 Front Panel Controls
5.1 INPUT MONITOR ................................................14
5.2 SRC INPUT..........................................................14
5.3 CLOCK SECTION................................................15
5.4 AES OUTPUT......................................................16
5.5 TDIF OUTPUT .....................................................16
5.6 ADAT OUTPUT....................................................16
6 Inputs
6.1 AES/EBU..............................................................17
6.2 TDIF .....................................................................18
6.3 ADAT Optical .......................................................19
7 Outputs
7.1 AES/EBU..............................................................20
7.2 TDIF .....................................................................21
7.3 ADAT Optical .......................................................22
8 The Sample Rate Converter
8.1 General ................................................................23
8.2 Operation .............................................................23
8.3 Clock Decoupling using the SRC.........................25
8.4 The SRC as Signal Conditioner...........................25
9 Word Clock
9.1 Word Clock Input and Output...............................26
9.2 Technical Description and Background...............27
9.3 Cables and Termination.......................................28
Technical Reference
10 Technical Specifications
10.1 Inputs....................................................................30
10.2 Outputs.................................................................31
10.3 Digital ...................................................................31
10.4 Sample Rate Converter .......................................32
10.5 General ................................................................32
10.6 Connector Pinouts................................................32
10.7 Firmware..............................................................33
11 Technical Background
11.1 Terminology .........................................................34
11.2 Lock, SyncCheck and SyncAlign.........................35
11.3 DS – Double Speed .............................................36
11.4 QS – Quad Speed................................................36
11.5 AES/EBU – SPDIF...............................................37
11.6 Group Delay – I/O Latency ..................................38
11.7 SteadyClock.........................................................39
12 Block Diagram.........................................................40
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User's Guide ADI-192 DD © RME
Important Safety Instructions
ATTENTION! Do not open chassis – risk of electric shock
The unit has unisolated live parts inside. No user serviceable parts inside.
Refer service to qualified service personnel.
Mains
• The device must be earthed – never use it without proper grounding
• Do not use defective power cords
• Operation of the device is limited to the manual
• Use same type of fuse only
To reduce the risk of fire or electric shock do not expose this device to rain or
moisture. Prevent moisture and water from entering the device. Never leave
a pot with liquid on top of the device. Do not use this product near water, i. e.
swimming pool, bathtub or wet basement. Danger of condensation inside –
don't turn on before the device has reached room temperature.
Installation
Surface may become hot during operation – ensure sufficient ventilation.
Avoid direct sun light and do not place it near other sources of heat, like radiators or stoves. When mounting in a rack, leave some space between this
device and others for ventilation.
Unauthorized servicing/repair voids warranty. Only use accessories
specified by the manufacturer.
Read the manual completely. It includes all information necessary
to use and operate this device.
User's Guide ADI-192 DD © RME
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User's Guide ADI-192 DD © RME
User's Guide
ADI-192 DD
General
User's Guide ADI-192 DD © RME
5
1. Introduction
With the ADI-192 DD you have an incredibly versatile digital interface to your supply. The successor of the highly successful ADI-8 DD is a completely re-engineered device, designed to be
the most powerful format and sample rate converter ever. What at first looks like a simple
AES/TDIF/ADAT format converter, turns out to be the universal problem solver at a closer look.
From small project studios to broadcast and television, the Universal Format Converter is the
perfect link between the formats mostly used today.
As a consequent continuation of RME's world-wide successful ADI series, the 192 DD also
contains elaborate technology and the latest integrated circuits. The ADI-192 DD is a uniquely
powerful and high-quality device, which will excite you even after many years of operation.
This manual has been divided into three parts:
• The first part is written as quick start guide. Even the first time user will be successfully up
and running with most of the typical applications adressed by the ADI-192 DD.
• The second part contains both basic and detailed information on all modes supported by the
ADI-192 DD, including sample multiplexing via Double and Quad Wire technology.
• The third part contains useful background information about the methods and technologies
found in the ADI-192 DD.
In case you want to dive deeply into the powerful features of the ADI-192 DD, please start with
chapter 11.1, Terminology.
2. Package Contents
Please check that your ADI-192 DD package contains each of the following:
• ADI-192 DD
• User's Guide
• Power chord
3. Brief Description and Characteristics
The ADI-192 DD consists of three 8-channel digital format converters, in a standard 19" box
with 1 unit height. The compact device has numerous extraordinary features like Intelligent
Clock Control (ICC), SyncCheck
jitter suppression through SteadyClock. Switchable high-end sample rate converters (SRC) in
reference quality allow for both sample rate conversion and clock decoupling on the highest
level.
All of the ADI-192 DD's I/Os support 192 kHz/24 bit. Since ADAT optical and TDIF are restricted
to 48 kHz, and AES is often limited to 48 or 96 kHz as well, the ADI-192 DD supports the so
called Sample Multiplexing in a unique way. Be it Double Wire, Quad Wire, S/MUX or S/MUX4 –
the ADI-192 DD receives and transmits in all these modes, and turns out to be the world's only
sample rate converter that can operate in these modes using all three interface formats.
The format conversion between AES/EBU, ADAT and TDIF operates in all directions at the
same time. LEDs of different colours show the present state of incoming and outgoing signals
and of the internal processing in a clear way.
The unique Intelligent Clock Control (ICC) allows for a flexible use with internal clock (44.1 up to
192 kHz), external word clock, or the digital input signals, thanks to a clear and easily understandable display of the Lock and Sync states. In short: the ADI-192 DD is a true Intelligent
Audio Solution.
®
, SyncAlign®, Bitclock PLL, patchbay functionality and active
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User's Guide ADI-192 DD © RME
4. First Usage – Quick Start
4.1 Controls and Connectors
The front of the ADI-192 DD features nine buttons and 48 LEDs, providing all necessary means
for a detailed configuration of the unit, plus an optical SPDIF I/O with TOSLINK connectors.
INPUT MONITOR indicates a valid input signal separately for each digital input. Additionally,
RME's exclusive SyncCheck indicates if one of these inputs is locked, but not synchronous to
the others. See also chapter 5.1 and 11.2.
SRC INPUT defines source and frequency range of the sample rate converter's input signal.
In the CLOCK SECTION the current clock reference and frequency multiplier is chosen.
In the AES OUTPUT section, souce, channel status and the optional sample multiplexing of the
AES/EBU outputs is selected.
TDIF OUTPUT defines which input signal appears at the TDIF output.
ADAT OUTPUT defines which input signal appears at the ADAT output.
The optical SPDIF I/O allows to use the first AES I/O port via TOSLINK cable.
The rear of the ADI-192 DD provides all the connections: eight AES/EBU (XLR), four ADAT
optical (TOSLINK), two TDIF (D-sub 25), three word clock (BNC), and mains power.
ADAT I/O MAIN (TOSLINK): Standard ADAT optical port.
ADAT I/O AUX (TOSLINK): Transmits further channels when sample multiplexing is active.
AES/EBU INPUTS (XLR): Transformer-coupled, high sensitivity, therefore accepts SPDIF sig-
nals as well.
AES/EBU OUTPUTS (XLR): Transformer-coupled, fully AES/EBU compatible.
TDIF-1 MAIN (D-sub 25): Standard TDIF port.
TDIF-1 AUX (D-sub 25): Transmits further channels when sample multiplexing is active.
WORD IN (BNC): A push switch allows to activate internal termination (75 Ohms). When termi-
nation is activated the yellow LED besides the switch lights up.
WORD OUT STD (BNC): Standard word clock output.
WORD OUT TDIF (BNC): Special word clock output for TDIF-based devices.
IEC receptable for power connection. The specially developed, internal hi-performance switch
mode power supply makes the ADI-192 DD operate in the range of 100V to 240V AC. It is
short-circuit-proof, has an integrated line-filter, is fully regulated against voltage fluctuations,
and suppresses mains interference.
User's Guide ADI-192 DD © RME
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4.2 Quick Start
In the INPUT MONITOR section 19 LEDs provide detailed information about the status of the
digital input signals. Displayed are Lock (flashing) and Sync (constantly lit), the frequency range
(Double or Quad Speed), a possible S/MUX indication on the ADAT input (DW), and the presence of audio data within the signal (Level).
SRC INPUT SOURCE is used to select the input signal of the sample rate converter. With several special formats the unit can't detect the input signal's effective sample rate. Therefore the
frequency range has to be set manually via the RANGE button. In some cases the unit takes
over control, or limits the available choices intelligently. Example: With an input signal AES 192
kHz the RANGE QS LED automatically lights up and can't be switched off. However with an
input signal ADAT 48 kHz the unit can't know whether it receives 48 kHz (no LED), 96 kHz in
S/MUX format (DS), or 192 kHz as S/MUX4 (QS). So the right choice has to be performed
manually with the RANGE button.
The source and frequency range of the unit's clock is defined in the CLOCK SECTION. The
button CLOCK stepps through the choices external clock (AES, TDIF, ADAT and word) and
internal clock (44.1 or 48 kHz). The button STATE defines the sample rate range for both internal and external clock. DS gives 88.2 and 96 kHz, QS gives 176.4 and 192 kHz respectively.
The input signal for each of the three outputs (output formats) is selected in the three OUTPUT
sections. Selecting the same input in the OUTPUT section as in the SRC INPUT SOURCE section, the LED SRC indicates an activated sample rate conversion.
The section AES OUTPUT allows for further settings. The AES output signal can be chosen to
have Professional or Consumer status. Additionally at 88.2 and 96 kHz the output format Double Wire (4 channels), and at 176.4 and 192 kHz Quad Wire (2 channels) can be selected.
Operating the ADI-192 DD with typical consumer devices is possible via the optical TOSLINK
jacks in the SPDIF I/O section. The optical input automatically replaces the rear XLR input
AES1, as soon as an SPDIF signal is detected. The optical output sends out the same signal as
the rear AES1 XLR output, i.e. channels 1/2, but carries a fixed channel status Consumer.
The ADI-192 DD stores all settings before switching off and sets them automatically when
switching on the next time.
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User's Guide ADI-192 DD © RME
4.3 The DD plain and simple
The user interface of the ADI-192 DD is characterized by a clearly structured architecture and
an unambiguous labelling of the front and rear sides. Numerous LEDs show the state of the
device and of all incoming and outgoing signals in a strictly logical way.
A simplified block diagram of the ADI-192 DD shows in an easy to understand way, how the
different format converters work together and how they can be used in practice.
The three input formats AES/SPDIF, ADAT and TDIF on the left side are sent to three Output
Source selectors each. Using these selectors, the three outputs on the right side gain access to
any of the three inputs. As all three selectors operate independently, all three outputs can even
use the same input signal, so AES is converted to AES, TDIF and ADAT at the same time – just
an example. Any combination that one can imagine is allowed.
The big block diagram also printed on the unit's cover (see chapter 12) shows further details,
like the AES input jacks, Double Speed and Quad Speed conversion, and the clock control.
The big block diagram especially shows the way of operation of the ADI-192 DD's 8-channel
sample rate converter. The SRC has a choice of access to the input formats AES/SPDIF, ADAT
or TDIF. It is not possible to use the SRC with more than one format at a time. The SRC processes either AES/SPDIF, ADAT or TDIF. But the SRC's output signal is available at the
AES/SPDIF, ADAT and TDIF outputs simultaneously.
The unit's user surface includes a smart improvement not being shown in the block diagram.
When an OUTPUT is set to the same SOURCE that is selected as SOURCE of the SRC, the
OUTPUT SOURCE automatically changes to SRC. The fourth choice shown in the block diagram, the SRC bus, is selected from the device itself, and not selectable via the OUTPUT button.
User's Guide ADI-192 DD © RME
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5. Warranty
Each individual ADI-192 DD undergoes comprehensive quality control and a complete test at
IMM before shipping. The usage of high grade components allow us to offer a full two year warranty. We accept a copy of the sales receipt as valid warranty legitimation.
If you suspect that your product is faulty, please contact your local retailer. The warranty does
not cover damage caused by improper installation or maltreatment - replacement or repair in
such cases can only be carried out at the owner’s expense.
Synthax Audio AG does not accept claims for damages of any kind, especially consequential
damage. Liability is limited to the value of the ADI-192 DD. The general terms of business
drawn up by Synthax Audio AG apply at all times.
6. Appendix
RME news and further information can be found on our website:
http://www.rme-audio.de
Distributor: Synthax Audio AG, Am Pfanderling 62, D-85778 Haimhausen, Tel.: (49) 08133 /
91810
Manufacturer:
IMM Elektronik GmbH, Leipziger Strasse 32, D-09648 Mittweida
Trademarks
All trademarks and registered trademarks belong to their respective owners. RME, SyncAlign,
Hammerfall and SyncCheck are registered trademarks of RME Intelligent Audio Solutions. Intelligent Clock Control (ICC), Fireface and SteadyClock are trademarks of RME Intelligent Audio
Solutions. Alesis and ADAT are registered trademarks of Alesis Corp. TDIF is a trademark of
Teac Corp. ADAT optical is a trademark of Alesis Corp. S/MUX is copyright Sonorus.
Copyright © Matthias Carstens, 6/2007. Version 1.3
All entries in this User's Guide have been thoroughly checked, however no guarantee for cor-
rectness can be given. RME cannot be held responsible for any misleading or incorrect information provided throughout this manual. Lending or copying any part or the complete manual or its
contents as well as the software belonging to it is only possible with the written permission from
RME. RME reserves the right to change specifications at any time without notice.
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User's Guide ADI-192 DD © RME
CE / FCC Compliance
CE
This device has been tested and found to comply with the limits of the European Council Directive on the approximation of the laws of the member states relating to electromagnetic compatibility according to RL89/336/EWG and RL73/23/EWG.
FCC
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses,
and can radiate radio frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by turning
the equipment off and on, the user is encouraged to try to correct the interference by one or
more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
- Consult the dealer or an experienced radio/TV technician for help.
RoHS
This product has been soldered lead-free and fullfills the requirements of the RoHS directive.
ISO 9001
This product has been manufactured under ISO 9001 quality management. The manufacturer,
IMM Elektronik GmbH, is also certified for ISO 14001 (Environment) and ISO 13485 (medical
devices).
Note on Disposal
According to the guide line RL2002/96/EG (WEEE – Directive on Waste
Electrical and Electronic Equipment), valid for all european countries, this
product has to be recycled at the end of its lifetime.
In case a disposal of electronic waste is not possible, the recycling can
also be done by IMM Elektronik GmbH, the manufacturer of the ADI-192
DD.
For this the device has to be sent free to the door to:
IMM Elektronik GmbH
Leipziger Straße 32
D-09648 Mittweida
Germany
Shipments not prepaid will be rejected and returned on the original sender's costs.
User's Guide ADI-192 DD © RME
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User's Guide ADI-192 DD © RME
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