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DDF2008C01

AES/EBU AUDIO FRONT-END FOR THE AUDIOCHAIN BUS OF THE TL2000

TERMINAL LINE

Version 1.0

Albalá Ingenieros, S.A.

Medea, 4 - 28037 Madrid - Spain

08 February 2016 - © Albalá Ingenieros S.A. - All rights reserved

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Summary of Contents for DDF2008C01

Page 1: ...F2008C01 AES EBU AUDIO FRONT END FOR THE AUDIOCHAIN BUS OF THE TL2000 TERMINAL LINE Version 1 0 Albalá Ingenieros S A Medea 4 28037 Madrid Spain 08 February 2016 Albalá Ingenieros S A All rights reserved ...

Page 2: ...DDF2008C01 ...

Page 3: ...ctions 11 3 3 Environmental considerations 12 3 4 Installing the module in the mounting frame 12 3 5 Interconnection 13 3 5 1 Digital audio connections 14 4 OPERATION 15 4 1 Front panel description 15 4 2 Functional description 16 4 3 The AES EBU inputs 17 4 4 The AES EBU outputs 17 4 5 Level gain and measurement 18 4 6 Module remote control and supervision 19 4 6 1 Details of the DDF2008C01 regis...

Page 4: ...DDF2008C01 ...

Page 5: ... the other direction between two or more modules located in adjacent slots The DDF2008C01 includes a total of eight AES EBU digital audio interfaces that can be configured as eight inputs as eight outputs or four inputs and four outputs The module includes a matrix that allows any assignment of audio signals between the AUDIOCHAIN and the AES EBU inputs outputs as well as gain controls to adjust t...

Page 6: ...irection between two or more modules installed in adjacent slots The module includes a total of eight AES EBU digital audio interfaces that can be configured as eight inputs eight outputs or four inputs and four outputs The module includes a switching matrix that allows free assignment of audio signals between the AUDIOCHAIN and the AES EBU inputs and outputs Module control and supervision can be ...

Page 7: ...Albalá Ingenieros Manual DDF2008C01 1 3 Block diagram 7 ...

Page 8: ...Albalá Ingenieros Manual DDF2008C01 DDF2008C01 8 ...

Page 9: ...ree run or locked to AUDIOCHAIN clock Number of inputs 0 4 or 8 user selectable AES EBU digital audio signal output Connector Sub D 25 pin female Impedance 110 Ω 20 Type Transformer balanced Encoding and electrical characteristics According to EBU Tech 3250 E AES3 standard Sampling rate 48 kHz free run or locked to AUDIOCHAIN clock Number of outputs 0 4 or 8 user selectable General Power consumpti...

Page 10: ...Albalá Ingenieros Manual DDF2008C01 DDF2008C01 10 ...

Page 11: ...arth connection Never use extension cords that do not have protective earthing connection The lack of an effective electrical connection between the ground pin in the mains input connector of the equipment and the protective earth of the electrical power distribution can cause serious harm All modules of the Albalá Ingenieros TL2000 terminal line can be hot plugged or unplugged without suffering a...

Page 12: ... should be followed in order to install a DDF2008C01 module in the mounting frame 1 Remove the blank panel covering the front of the empty slot chosen for installing the DDF2008C01 in the mounting frame 2 Insert the DDF2008C01 module into the front of the mounting frame The edges of the card slide into two plastic guides inside the mounting frame 3 Secure the module to the mounting frame using the...

Page 13: ...t panel of the DDF2008C01 The DDF2008C01 includes eight AES EBU audio interfaces IN1 OUT5 IN2 OUT6 IN3 OUT7 IN4 OUT8 IN5 OUT1 IN6 OUT2 IN7 OUT3 and IN8 OUT4 that can be configured as inputs or outputs in groups of four using the connector labeled AES EBU AUDIO IN OUT The following figure details the position of the AES EBU interfaces in the connector terminals 13 ...

Page 14: ... so that the front panel does not provide mechanical support 3 5 1 Digital audio connections The digital audio input and output interfaces use female 25 pin Sub D type connectors which are transformer balanced with an impedance of 110 Ω For digital audio connections 110 Ω characteristic impedance two wire shielded cable is preferred The GND terminal allows connection of the cable shield 14 ...

Page 15: ...Interconnection section the front panel includes the following indicators and controls In the STATUS box INP This LED lights up in green to indicate that all the streams being sent to the AUDIOCHAIN from the AES EBU audio inputs are correct It lights up in red to indicate that errors are present in one or more inputs the error could be a lack of signal or sync failure BUS This LED lights up in gre...

Page 16: ...y channel The 16 audio channels being transmitted in each direction are labeled R2L Right to Left and L2R Left to Right When the task at hand is to embed or de embed audio into or from a video signal the equipment acting as the master for the AUDIOCHAIN is an SDI video processor and the audio front ends DAF2008C01 ADF2008C01 DDF2008C01 or DEF2008C01 operate as slaves However it is also possible to...

Page 17: ...al sync for each input The presence detector includes format validation as per EBU Tech 3250 E with or without parity verification The sync detector allows verification that the sampling frequency of the streams being received is synchronized to the internal sampling frequency of the module The streams inserted into the AUDIOCHAIN bus are continuous even if AES EBU signals received are not synchro...

Page 18: ...endently in either direction by each of the AES EBU output stream channels If reception of any the channels from the AUDIOCHAIN that make up a stream stops then silence is inserted in that stream If reception stops for both channels then the module will continue to output a stream of silence or cut off the output signal depending upon the selected configuration 4 5 Level gain and measurement The D...

Page 19: ...le an optional TL2000 family remote communications controller must be installed in the mounting frame The main function of the communications control module is to interface between a 10 100 Ethernet port and the internal bus of the mounting frame The following illustration shows the most common control situations from a computer or control panel via Ethernet Certain communications control modules ...

Page 20: ...r each version of the firmware are listed below VERSION 1 X CONTROL Name add ext msk snmp trap Description ACTIVE_PRESET 0x00 0x3F Y N Shows the active preset 32 Preset 1 33 Preset 2 34 Preset 3 35 Preset 4 36 Preset 5 37 Preset 6 38 Preset 7 39 Preset 8 40 Preset 9 41 Preset 10 42 Preset 11 43 Preset 12 44 Preset 13 45 Preset 14 46 Preset 15 47 Preset 16 None LOAD_PRESET 0x00 0x7F Y N Allows load...

Page 21: ...C 0x06 0x0800 0x1F Y N Insertion source used in R2L OUT channel 7 0 AES1 Left 1 AES1 Right 2 AES2 Left 3 AES2 Right 4 AES3 Left 5 AES3 Right 6 AES4 Left 7 AES4 Right 8 AES5 Left 9 AES5 Right 10 AES6 Left 11 AES6 Right 12 AES7 Left 13 AES7 Right 14 AES8 Left 15 AES8 Right 16 R2L IN R2L_OUT_8_SRC 0x07 0x0800 0x1F Y N Insertion source used in R2L OUT channel 8 0 AES1 Left 1 AES1 Right 2 AES2 Left 3 A...

Page 22: ...ht 8 AES5 Left 9 AES5 Right 10 AES6 Left 11 AES6 Right 12 AES7 Left 13 AES7 Right 14 AES8 Left 15 AES8 Right 16 L2R IN L2R_OUT_5_SRC 0x04 0x0810 0x1F Y N Insertion source used in L2R OUT channel 5 0 AES1 Left 1 AES1 Right 2 AES2 Left 3 AES2 Right 4 AES3 Left 5 AES3 Right 6 AES4 Left 7 AES4 Right 8 AES5 Left 9 AES5 Right 10 AES6 Left 11 AES6 Right 12 AES7 Left 13 AES7 Right 14 AES8 Left 15 AES8 Rig...

Page 23: ...h 4 4 L2R ch 5 5 L2R ch 6 6 L2R ch 7 7 L2R ch 8 8 L2R ch 9 9 L2R ch 10 10 L2R ch 11 11 L2R ch 12 12 L2R ch 13 13 L2R ch 14 14 L2R ch 15 15 L2R ch 16 16 R2L ch 1 17 R2L ch 2 18 R2L ch 3 19 R2L ch 4 20 R2L ch 5 21 R2L ch 6 22 R2L ch 7 23 R2L ch 8 24 R2L ch 9 25 R2L ch 10 26 R2L ch 11 27 R2L ch 12 28 R2L ch 13 29 R2L ch 14 30 R2L ch 15 31 R2L ch 16 32 Silence AES2_L_OUT_SRC 0x02 0x0820 0x3F Y N Inser...

Page 24: ... 8 24 R2L ch 9 25 R2L ch 10 26 R2L ch 11 27 R2L ch 12 28 R2L ch 13 29 R2L ch 14 30 R2L ch 15 31 R2L ch 16 32 Silence AES6_R_OUT_SRC 0x0B 0x0820 0x3F Y N Insertion source used in AES6 channel right when used as output 0 L2R ch 1 1 L2R ch 2 2 L2R ch 3 3 L2R ch 4 4 L2R ch 5 5 L2R ch 6 6 L2R ch 7 7 L2R ch 8 8 L2R ch 9 9 L2R ch 10 10 L2R ch 11 11 L2R ch 12 12 L2R ch 13 13 L2R ch 14 14 L2R ch 15 15 L2R ...

Page 25: ...0x7F N N AES1 OUT channel left gain 24 x 2 dB GAIN_OUT_1_R 0x01 0x0840 0x7F N N AES1 OUT channel right gain 24 x 2 dB GAIN_OUT_2_L 0x02 0x0840 0x7F N N AES2 OUT channel left gain 24 x 2 dB GAIN_OUT_2_R 0x03 0x0840 0x7F N N AES2 OUT channel right gain 24 x 2 dB GAIN_OUT_3_L 0x04 0x0840 0x7F N N AES3 OUT channel left gain 24 x 2 dB GAIN_OUT_3_R 0x05 0x0840 0x7F N N AES3 OUT channel right gain 24 x 2...

Page 26: ...L 0x02 0x0860 0xFF N N AES1 OUT channel left level x 255 4 dBFS 0 Mute AES_OUT2_R_LEVEL 0x03 0x0860 0xFF N N AES1 OUT channel right level x 255 4 dBFS 0 Mute AES_OUT3_L_LEVEL 0x04 0x0860 0xFF N N AES1 OUT channel left level x 255 4 dBFS 0 Mute AES_OUT3_R_LEVEL 0x05 0x0860 0xFF N N AES1 OUT channel right level x 255 4 dBFS 0 Mute AES_OUT4_L_LEVEL 0x06 0x0860 0xFF N N AES1 OUT channel left level x 2...

Page 27: ... OK 0 Fail L2R_IN_5_PRES 0x03 0x10 Y N There is a valid audio signal in channel 5 of L2R IN 1 OK 0 Fail L2R_IN_6_PRES 0x03 0x20 Y N There is a valid audio signal in channel 6 of L2R IN 1 OK 0 Fail L2R_IN_7_PRES 0x03 0x40 Y N There is a valid audio signal in channel 7 of L2R IN 1 OK 0 Fail L2R_IN_8_PRES 0x03 0x80 Y N There is a valid audio signal in channel 8 of L2R IN 1 OK 0 Fail L2R_IN_9_PRES 0x0...

Page 28: ... R2L IN 1 OK 0 Fail R2L_IN_11_PRES 0x06 0x04 Y N There is a valid audio signal in channel 11 of R2L IN 1 OK 0 Fail R2L_IN_12_PRES 0x06 0x08 Y N There is a valid audio signal in channel 12 of R2L IN 1 OK 0 Fail R2L_IN_13_PRES 0x06 0x10 Y N There is a valid audio signal in channel 13 of R2L IN 1 OK 0 Fail R2L_IN_14_PRES 0x06 0x20 Y N There is a valid audio signal in channel 14 of R2L IN 1 OK 0 Fail ...

Page 29: ...rk to transmit digital signals that may or may not be audio with linear PCM encoding The physical interface defined by the original AES EBU standard was a 110 ohm balanced line The AES3 id standard later defined the physical interface as a 75 ohm coaxial cable ASRC Asynchronous Sample Rate Converter AUDIOFLEX AUDIOFLEX SDI Serial Digital Interface A standard used for the transmission of uncompress...

Page 30: ...Albalá Ingenieros Manual DDF2008C01 DDF2008C01 30 ...

Page 31: ...Albalá Ingenieros Manual DDF2008C01 6 REGULATIONS EBU Tech 3250 E 1992 Specificacion of the digital audio interface See also AES3 ITU R BS 647 2 31 ...

Page 32: ...Albalá Ingenieros Manual DDF2008C01 DDF2008C01 32 ...

Page 33: ...Albalá Ingenieros Manual DDF2008C01 7 VERSIONS Ver Date Description 0 0 15 09 2015 Preliminary Version 1 0 08 02 2016 First version ...

Page 34: ...Albalá Ingenieros S A Medea 4 28037 Madrid Spain 34 913274453 www albalaing com info albalaing com ...

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