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User's Guide ADI-6432R BNC   © RME

23

 

12.4 RS232 

 
Many devices in the professional range of PA and live sound solutions can be remote controlled 
using serial communication. The most common standard for those is RS232, the interface 
known from any computer (COM port). Small and cost-efficient converters between RS232 and 
newer formats, like RS422 or RS485, are widely spread and therefore easily available. 
 
As already described in the chapter about the technology to transmit MIDI via 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 20 00 00 F7 

19200 Bd 

 

F0 00 20 0D 63 7F 20 00 01 F7 

38400 Bd 

 

F0 00 20 0D 63 7F 20 00 03 F7 

115200 Bd 

 

F0 00 20 0D 63 7F 20 00 02 F7 

 
 
Note: In case the transmission of serial data seems not to work the device might be configured 
for AES Transparent mode, see chapter 10.2.

Содержание ADI-6432(r)

Страница 1: ...Digital Interface SyncAlign TM SyncCheck TM Intelligent Clock Control TM SteadyClock TM Hi Precision 24 Bit 192 kHz 64 Channel Bidirectional Format Converter MADI AES 3id Interface MIDI embedded in MA...

Страница 2: ...UT 14 8 3 AES 14 8 4 CLOCK 15 8 5 REMOTE 15 9 Inputs 9 1 MADI 16 9 2 AES 3id 16 10 Outputs 10 1 MADI 17 10 2 AES 3id 17 11 Word Clock 11 1 Word Clock Input and Output 18 11 2 Technical Description and...

Страница 3: ...ral 31 14 6 Firmware 32 14 7 Connector Pinout RS232 32 14 8 MADI User Bit Chart 32 15 Technical Background 15 1 Terminology 33 15 2 Lock SyncCheck and SyncAlign 34 15 3 MADI Basics 35 15 4 SteadyClock...

Страница 4: ...isture 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...

Страница 5: ...User s Guide ADI 6432R BNC RME 5 User s Guide ADI 6432R BNC General...

Страница 6: ...erates in both directions at the same time LEDs of different colours show the pre sent state of incoming and outgoing signals and of the internal processing in a clear way The unique Intelligent Clock...

Страница 7: ...sive 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 D...

Страница 8: ...s 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 transmission via MADI IEC receptacle for power connection The specially d...

Страница 9: ...in 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 e...

Страница 10: ...have regional specific warranty implications In any case warranty does not cover damage caused by improper installation or maltreatment replacement or repair in such cases can only be carried out at t...

Страница 11: ...onable protec tion 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...

Страница 12: ...ct 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 6432 For this...

Страница 13: ...User s Guide ADI 6432R BNC RME 13 User s Guide ADI 6432R BNC Usage and Operation...

Страница 14: ...48k frame 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 li...

Страница 15: ...hing 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 S...

Страница 16: ...t not ground free The BNC sockets are con nected to the housing GND Channel status and copy protection are being ignored The inputs can be used in any combination e g it is sufficient to connect an in...

Страница 17: ...nnec tors Every output is transformer coupled but not ground free The BNC sockets are connected to the housing GND The output s channel status coding has been implemented according to AES3 1992 Amendm...

Страница 18: ...e back beside the BNC jacks Use a small pencil or similar and carefully push the blue switch so that it snaps into its lock position Another push will release it again and de activate the termination...

Страница 19: ...lock 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 sig...

Страница 20: ...he 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...

Страница 21: ...to MADI A MIDI cable con necting 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...

Страница 22: ...the MIDI Out of the ADI 6432 At the same time they reach the 6432 s CPU The MIDI sig nals of external devices travel via MIDI In and MADI Out back to the software together with the request responses o...

Страница 23: ...via 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 se...

Страница 24: ...box 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...

Страница 25: ...User s Guide ADI 6432R BNC RME 25...

Страница 26: ...cts 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 de...

Страница 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 outp...

Страница 28: ...28 User s Guide ADI 6432R BNC RME...

Страница 29: ...User s Guide ADI 6432R BNC RME 29 User s Guide ADI 6432R BNC Technical Reference...

Страница 30: ...Hz Jitter when synced to 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 inter...

Страница 31: ...k frame RS 232 9 pin D sub Invisible transmission via User bit of channels 1 to 9 14 4 Digital Clocks Internal AES In MADI In Word clock In Low Jitter Design 1 ns in PLL mode all inputs Internal clock...

Страница 32: ...this manual the unit is shipped with firmware 1 5 The firmware version is displayed after power on for about one second by the SYNC and AUDIO LEDs of the AES INPUT STATE section 14 7 Connector Pinout...

Страница 33: ...data 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 D...

Страница 34: ...simple 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 Playe...

Страница 35: ...ced 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 myste...

Страница 36: ...kHz SteadyClock 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 res...

Страница 37: ...User s Guide ADI 6432R BNC RME 37 16 Block Diagram...

Страница 38: ...of 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 S...

Страница 39: ...16 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 b...

Страница 40: ...ES 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 sy...

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