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RME Audio ADI-6432, User Manual

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RME Audio ADI-6432 User Manual Download Page 12

 

 

12 

User's Guide ADI-6432   © RME

 

 

CE / FCC Compliance

 

 

CE 

This device has been tested and found to comply with the limits of the European Council Direc-
tive on the approximation of the laws of the member states relating to electromagnetic compati-
bility according to RL89/336/EWG and RL73/23/EWG.

  

 
 

FCC Compliance Statement

 

Certified to comply with the limits for a Class B computing device according to subpart J or part 
15 of FCC rules. See instructions if interference to radio reception is suspected. 
 
 

FCC Warning 

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 protec-
tion against harmful interference in a residential installation. 
 
This device complies with part 15 of FCC rules. Operation is subject to the following two condi-
tions: 
 
1.  This device may not cause harmful interference 
2.  This device must accept any interference received, including interference that may cause 

undesired operation. 

 
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 de-
termined by turning the equipment off and on, the user is encouraged to try to correct the inter-
ference by one or more of the following measures: 
 

•

  Reorient or relocate the receiving antenna 

•

  Increase the seperation 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. 

 
In order for an installation of this product to maintain compliance with the limits for a Class B 
device, shielded cables must be used for the connection of any devices external to this product. 
 
 

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 Micstasy. 
 
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. 

Summary of Contents for ADI-6432

Page 1: ...o Digital Interface SyncAlign SyncCheck Intelligent Clock Control TM SteadyClock TM Hi Precision 24 Bit 192 kHz 64 Channel Bidirectional Format Converter MADI AES EBU Interface MIDI embedded in MADI RS232 embedded in MADI MIDI Remote Control ...

Page 2: ...8 4 CLOCK 15 8 5 REMOTE 15 9 Inputs 9 1 MADI 16 9 2 AES EBU 16 10 Outputs 10 1 MADI 17 10 2 AES EBU 17 11 Word Clock 11 1 Word Clock Input and Output 18 11 2 Technical Description and Background 19 11 3 Cables and Termination 20 12 MIDI and RS232 12 1 Transmission of MIDI 21 12 2 Remote Controlling the ADI 6432 21 12 3 Remote Control Software 22 12 4 RS232 23 13 Application Examples 13 1 Digital A...

Page 3: ...6 Firmware 32 14 7 Connector Pinouts 32 14 8 MADI User Bit Chart 33 15 Technical Background 15 1 Terminology 34 15 2 Lock SyncCheck and SyncAlign 35 15 3 AES EBU SPDIF 36 15 4 MADI Basics 37 15 5 SteadyClock 38 16 Block Diagram 39 17 MIDI Implementation Chart 17 1 Basic SysEx Format 40 17 2 Message Types 40 17 3 MADI Input State Redundancy Mode 40 17 4 Table 41 ...

Page 4: ...4 User s Guide ADI 6432 RME ...

Page 5: ...User s Guide ADI 6432 RME 5 User s Guide ADI 6432 General ...

Page 6: ... a standard 19 box with 2 unit height The compact device has numerous extraordinary features like Intelligent Clock Control ICC SyncCheck SyncAlign SteadyClock MIDI over MADI RS232 over MADI and remote control via MADI and MIDI All of the ADI 6432 I Os support 192 kHz 24 bit The format conversion between MADI and AES EBU operates in both directions at the same time LEDs of different colours show t...

Page 7: ...ve SyncCheck indicates via flashing LEDs if one of these inputs is locked but not synchronous to the chosen clock reference WORD INPUT displays the basic state of the word clock input signal ERROR Double Speed and Quad Speed Note that these LEDs are only active when word has been chosen as clock reference In the CLOCK SECTION the current clock reference and frequency multiplier is chosen MADI OUTP...

Page 8: ...re transformer coupled high sensitivity type there fore accept all common digital sources even SPDIF WORD IN BNC A push switch allows to activate internal termination 75 Ohms WORD OUT BNC Standard word clock output MIDI I O 5 pin DIN MIDI input and output via 5 pin DIN jacks Used for transmission of MIDI data via MADI and for remote control of the ADI 6432 COM 9 pin D sub Serial interface for data...

Page 9: ...n the CLOCK SECTION The but tons CLOCK let you step through the options external clock AES MADI word and internal clock 44 1 or 48 kHz The button STATE sets the range for the internal but also the external sample rate Selecting DS will result in 88 2 and 96 kHz selecting QS sets 176 4 and 192 kHz The MADI output signal can include 56 or 64 channels FORMAT The FRAME button switches the MADI output ...

Page 10: ...ally for direct connection of devices having digital I Os with Tascam pinout For example the HDSP AES 32 the OctaMic or the ADI 4DD can be connected directly to the ADI 6432 Part Number Description BO25M25M1PRO Digital D sub Cable Pro AES EBU 25 pin D sub to 25 pin D sub 1m BO25M25M3PRO Digital D sub Cable Pro AES EBU 25 pin D sub to 25 pin D sub 3m BO25M25M6PRO Digital D sub Cable Pro AES EBU 25 ...

Page 11: ...nd on our website http www rme audio com 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 ADI 6432 SteadyC...

Page 12: ...rticular installation If this equipment does cause harmful interference to radio or television reception which can be de termined by turning the equipment off and on the user is encouraged to try to correct the inter ference by one or more of the following measures Reorient or relocate the receiving antenna Increase the seperation between the equipment and receiver Connect the equipment into an ou...

Page 13: ...User s Guide ADI 6432 RME 13 User s Guide ADI 6432 Usage and Operation ...

Page 14: ...rame format 8 2 MADI OUTPUT The buttons FRAME and FORMAT configure the MADI output signal as follows FRAME 48k or 96k frame 48k frame can be used with Single Double and Quad Speed 96k frame is limited to the range 64 kHz to 96 kHz Double Speed FORMAT 56 channel or 64 channel format 8 3 AES The INPUT STATE of the 32 inputs is displayed by a total of 67 LEDs Each input has its own SYNC LED If a vali...

Page 15: ...ng error or constantly lit OK LED The button STATE is used to configure the ADI 6432 and with this all of its outputs to the fre quency ranges Single Speed Double Speed or Quad Speed No LED Single Speed All outputs carry a signal in the range of 32 kHz up to 48 kHz DS Double Speed AES outputs 1 16 carry a signal in the range of 64 kHz up to 96 kHz MADI stays at no higher than 48 kHz with the data ...

Page 16: ...ound free Channel status and copy protection are being ignored The inputs can be used in any combination e g it is sufficient to connect an input signal only to input 3 In slave mode this input is automatically being used as clock source If more than one signal is present the one furthest left is being used as clock source i e the active input with the lowest number The ADI 6432 supports single wi...

Page 17: ... The 32 AES EBU outputs are provided on the rear of the ADI 6432 via eight 25 pin D sub con nectors with Tascam pinout also used by Digidesign A digital breakout cable will provide 4 male and 4 female XLR connectors per D sub connector Every output is transformer balanced ground free and compatible to all devices with AES EBU ports The output s channel status coding has been implemented according ...

Page 18: ...mV 0 3V input level are sufficient in principle An additional hysteresis reduces sensitivity to 1 0 V so that over and undershoots and high frequency disturbances don t cause a wrong trigger The ADI 6432 s word clock input is shipped as high impedance type not terminated A push switch allows to activate internal termination 75 Ohms The switch is found on the back beside the BNC jacks Use a small p...

Page 19: ...k all other devices must be set to Slave mode But word clock is not only the great problem solver it also has some disadvantages The word clock is based on a fraction of the really needed clock For example SPDIF 44 1 kHz word clock a simple square wave signal has to be multiplied by 256 inside the device using a spe cial PLL to about 11 2 MHz This signal then replaces the one from the quartz cryst...

Page 20: ... higher voltage word clock networks are in some cases more stable and reliable if cables are not terminated at all Ideally all outputs of word clock delivering devices are designed as low impedance types but all word clock inputs as high impedance types in order to not weaken the signal on the chain But there are also negative examples when the 75 Ohms are built into the device and cannot be switc...

Page 21: ...rix router is set up A MIDI cable connecting MIDI output and MIDI input of the ADI 6432 will realize a direct pass through of MIDI from MADI input to MADI output 12 2 Remote Controlling the ADI 6432 The ADI 6432 can be completely remote controlled via MIDI The CPU shown above reacts on specific commands Furthermore upon request the CPU will report the complete device status This includes all contr...

Page 22: ... MIDI sig nals of external devices travel via MIDI In and MADI Out back to the software together with the request responses of the CPU Software download http www rme audio com download midiremote zip Brief description of Windows Software ADI 6432 MIDI Remote The program includes an extensive english online help F1 After the start first choose the func tion ADI 6432 Front View in the menu Functions...

Page 23: ...ia MADI the ADI 6432 also transmits serial data via user bits in this case on channels 1 to 9 Supported are the Baud rates 9600 19200 38400 and 115200 The configuration is done via MIDI either by sending the according SysEx string or more comfortably via the Windows software MIDI Re mote The specific setting is stored in the unit and doesn t change on reboot SysEx Strings 9600 Bd F0 00 20 0D 63 7F...

Page 24: ...ox computer unveils a delay the so called offset between playback and recording If a signal is played back from the MADI PCI and recorded again via MADI by performing an AES loopback the record track will show a specific delay against the playback track The reason for this is that the HDSP MADI does signal its own offset to the application but not the ones of externally connected devices which it ...

Page 25: ...User s Guide ADI 6432 RME 25 ...

Page 26: ...ts units In this applica tion the ADI 6432 serves to insert digital devices into the MADI data stream or as adder of ad ditional signals to the not fully utilized MADI data stream Example A mixing desk sends 48 channels via MADI 16 more channels from two RME Oc taMic D 8 channel microphone preamp with AES outputs shall be recorded by a HDSP MADI into a computer This application requires one ADI 64...

Page 27: ...converter Its AES outputs are connected to the AES inputs of the second ADI 6432 The second ADI 6432 is used as de scribed in the above example sending the MADI input signal directly to the MADI output At the same time the unit fills the unused MADI channels at its MADI output with the audio signals from the AES inputs The diagram shows cabling and signal flow of such an application ...

Page 28: ...28 User s Guide ADI 6432 RME ...

Page 29: ...User s Guide ADI 6432 RME 29 User s Guide ADI 6432 Technical Reference ...

Page 30: ... input signal 1 ns Jitter suppression 30 dB 2 4 kHz Word Clock BNC not terminated 10 kOhm Switch for internal termination 75 Ohm Automatic Double Quad Speed detection and internal conversion to Single Speed SteadyClock guarantees super low jitter synchronization even in varispeed operation Transformer coupled galvanically isolated input Not affected by DC offsets within the network Signal Adaptati...

Page 31: ... 96k frame RS 232 9 pin D Sub Invisible transmission via User bit of channels 1 to 9 14 4 Digital Clocks Internal AES EBU In MADI In Word clock In Low Jitter Design 1 ns in PLL mode all inputs Internal clock 800 ps Jitter Random Spread Spectrum Jitter suppression of external clocks 30 dB 2 4 kHz PLL ensures zero dropout even at more than 100 ns jitter Group delay typically 3 samples 14 5 General P...

Page 32: ...gn Signal In 1 2 In 1 2 In 3 4 In 3 4 In 5 6 In 5 6 In 7 8 In 7 8 D Sub 24 12 10 23 21 9 7 20 Signal Out 1 2 Out 1 2 Out 3 4 Out 3 4 Out 5 6 Out 5 6 Out 7 8 Out 7 8 D Sub 18 6 4 17 15 3 1 14 GND is connected to pins 2 5 8 11 16 19 22 25 Pin 13 is not connected The Yamaha pinout is quite popular as well When building a D sub to D sub adapter or con nection cable please make sure that the connectors...

Page 33: ...ES EBU The XLR connectors are wired according to AES3 1992 1 GND shield 2 Signal 3 Signal AES EBU and SPDIF are biphase modulated signals therefore polarity doesn t matter Pins 2 and 3 are neither hot nor cold they carry the same signal But as AES3 uses a balanced trans mission they are inverted in polarity RS 232 The 9 pin D Sub Connector is wired according to industry standard Signal In Rx Out T...

Page 34: ...ta rate and hence twice the sample rate A stereo signal subsequently requires two AES EBU ports The Double Wire method is an industry standard today however it has a number of different names like Dual AES Double Wide Dual Line and Wide Wire The AES3 specification uses the uncommon term Single channel double sampling frequency mode When used with the ADAT format the term S MUX is commonly used Dou...

Page 35: ...mple LOCK is not sufficient The above described problem can be solved elegantly by setting the ADI 6432 from internal clock to AES its internal clock will then be the clock delivered by the CD Player But in case a DAT recorder is connected as a second source there will again be a slight difference in the sample rate and therefore clicks and drop outs 2 In order to display those problems optically ...

Page 36: ...principle because the audio information is stored in the same place in the data stream However there are blocks of additional information which are different for both standards In the table the meaning of the first byte 0 is shown for both formats The first bit already determines whether the following bits should be read as Professional or Consumer information Byte Mode Bit 0 1 2 3 4 5 6 7 0 Pro P...

Page 37: ... coaxial cables with 75 Ohms BNC plugs they are not expensive and easy to get The optical interface is much more interesting due to its complete galvanic separation but for many users it is a mystery because very few have ever dealt with huge cabinets full of professional network technology Therefore here are some explanations regarding MADI optical The cables used are standard in computer network...

Page 38: ...teadyClock has originally been de veloped to gain a stable and clean clock from the heavily jittery MADI data signal The embedded MADI clock suffers from about 80 ns jitter caused by the time resolution of 125 MHz within the format Common jitter values for other devices are 5 ns while a very good clock will have less than 2 ns The picture to the right shows the MADI input signal with 80 ns of jitt...

Page 39: ...User s Guide ADI 6432 RME 39 16 Block Diagram ...

Page 40: ... all value response data bytes Value Response After being triggered by receiving a request value command device sends a string of all value response data bytes Message type is set to 30h Set Value Sets any number of parameters nn oo can be repeated freely 17 3 MADI Input State Redundancy Mode The MADI input can be BNC or optical When the ADI 6432 enters Redundancy mode it uses the other input alth...

Page 41: ...6 AES lock 13 16 x bit 0 3 lock 13 16 bit 4 7 0 11h 17 AES lock 17 20 x bit 0 3 lock 17 20 bit 4 7 0 12h 18 AES lock 21 24 x bit 0 3 lock 21 24 bit 4 7 0 13h 19 AES lock 25 28 x bit 0 3 lock 25 28 bit 4 7 0 14h 20 AES lock 29 32 x bit 0 3 lock 29 32 bit 4 7 0 15h 21 AES sync 1 4 x bit 0 3 sync 1 4 bit 4 7 0 16h 22 AES sync 5 8 x bit 0 3 sync 5 8 bit 4 7 0 17h 23 AES sync 9 12 x bit 0 3 sync 9 12 b...

Page 42: ... 5 1 clock select 3 MADI 4 WCK 4 LSB 0 clock select 3 0 2 0 1 MSB 1 clock state 0 single speed 1 ds 2 qs LSB 0 LSB 0 clock state 02h 2 info byte 1 MSB 7 0 6 MADI input override 5 MADI lock 4 MADI sync 3 MADI input 96k frame 2 MADI input 64ch 1 AES input 192k LSB 0 AES input 96k 03h 3 info byte 2 MSB 7 0 6 WCK lock 5 WCK Input 192k 4 WCK Input 96k 3 0 2 0 1 0 LSB 0 0 04h 4 info byte 3 MSB 7 0 6 0 5...

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