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Albalá Ingenieros | Manual 

DAB2008C01

The module allows supervision of the signal level of all the audio channels being
processed after the gain is applied. Furthermore, an overload threshold can be set that
generates an alarm is the level of any audio channels passes the limit.

The DAB2008C01 module performs the digital-to-analog conversion of the audio at 24
bits with a sampling frequency of 48kHz and a full scale level of 22dBu.

The DAB2008C01 module provides 16 user-configurable presets.

17

Содержание DAB2008C01

Страница 1: ...2008C01 ANALOG AUDIO OUTPUT FRONT END FOR THE AUDIOFLEX BUS OF THE TL2000 TERMINAL LINE Version 1 0 Albalá Ingenieros S A Medea 4 28037 Madrid Spain 20 April 2016 Albalá Ingenieros S A All rights reserved ...

Страница 2: ...DAB2008C01 ...

Страница 3: ...11 3 1 Initial inspection 11 3 2 Safety instructions 11 3 3 Environmental considerations 12 3 4 Installing the module in the mounting frame 12 3 5 Interconnection 12 3 5 1 Analog audio connections 13 4 OPERATION 15 4 1 Front panel description 15 4 2 Functional description 16 4 3 Module remote control and supervision 18 4 3 1 Details of the DAB2008C01 registers 19 5 GLOSSARY 23 6 REGULATIONS 25 7 V...

Страница 4: ...DAB2008C01 ...

Страница 5: ...e a multiple audio format audio switching matrix compatible with analog audio AES EBU AES67 and MADI The module includes an audio processing unit between the AUDIOFLEX bus and the external connections that permits adjustment of the level and phase reversal for each of the audio channels The gain adjustment runs from 24 to 39 dB in 0 5 dB steps and can also be muted In order to operate properly the...

Страница 6: ...outputs The analog audio outputs are obtained by de multiplexing eight audio channels from a time slot of the AUDIOFLEX M2S line and converting them the analog with a full scale level of 22 dBu The module includes an audio processing unit that can adjust the level and reverse the phase of any of the audio channels The module supervises the signal level of all the audio channels that it uses Furthe...

Страница 7: ...Albalá Ingenieros Manual DAB2008C01 1 3 Block diagram 7 ...

Страница 8: ...Albalá Ingenieros Manual DAB2008C01 DAB2008C01 8 ...

Страница 9: ...tputs Yes Digital to analog converter Number of bits 24 Sampling rate 48 kHz free run or locked to DCAB clock Pass band ripple 0 1 0 5 from 20 Hz to 20 kHz Signal to Noise ratio S N Unweighted 100 dB measured with a 1 kHz 60 dBFS tone 20 Hz to 20kHz Harmonic distortion plus noise THD N 85 dB measured with a 1 kHz 0 dBFS tone output loaded withn 600 Ω Crosstalk between channels 80 dB measured a 1 k...

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Страница 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...

Страница 12: ... the front of the empty slot chosen for installing the DAB2008C01 in the mounting frame 2 Insert the DAB2008C01 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 two front screws After these steps the module is ready to be connected to other equipment 3 5 Interconnection The ...

Страница 13: ...cabling in the rack where the mounting frame is located should be properly supported so that the front panel does not provide mechanical support 3 5 1 Analog audio connections The analog audio outputs are balanced use a 25 contact Sub D female connector and their characteristic impedance is 73 Ω For analog audio connections two wire shielded cable is preferred The GND terminal allows connection of...

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Страница 15: ...ion section the front panel includes the following indicators and controls In the STATUS box AUD This LED lights up in green when the audio level after any gains applied does not pass the overload threshold for any of the channels and no saturation results from the gains applied Otherwise this LED lights up in red BUS This LED lights up in green when the reference signal from the internal synchron...

Страница 16: ...whereas in automatic assignment the user indicates the base slot of the mounting frame and the time slots are assigned starting from this number For example if the base slot of the frame is 10 the module installed in Slot 10 will take the eight audio channels from Time Slot 1 the module installed in Slot 11 will take the eight audio channels from Time Slot 2 and so on The DAB2008C01 signals an err...

Страница 17: ...applied Furthermore an overload threshold can be set that generates an alarm is the level of any audio channels passes the limit The DAB2008C01 module performs the digital to analog conversion of the audio at 24 bits with a sampling frequency of 48 kHz and a full scale level of 22 dBu The DAB2008C01 module provides 16 user configurable presets 17 ...

Страница 18: ...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 ...

Страница 19: ...memory The parameters that can be controlled and supervised remotely for 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 ...

Страница 20: ...2 dB PHASE3 0x03 0x0700 0x80 N N Phase gain applied to the analogue audio output 4 0 Normal 1 Inverted GAIN4 0x04 0x0700 0x7F N N Gain applied to the analogue output 5 24 x 2 dB PHASE4 0x04 0x0700 0x80 N N Phase gain applied to the analogue audio output 5 0 Normal 1 Inverted GAIN5 0x05 0x0700 0x7F N N Gain applied to the analogue output 6 24 x 2 dB PHASE5 0x05 0x0700 0x80 N N Phase gain applied to...

Страница 21: ...No 1 Yes SLOT8_PRES 0x02 0x80 Y N Slot 8 data presence 0 No 1 Yes ANALOG_IN1_LEVEL 0x05 0xFF Y N Analog out 1 level x 255 4 dBFS 0 Mute ANALOG_IN2_LEVEL 0x06 0xFF Y N Analog out 2 level x 255 4 dBFS 0 Mute ANALOG_IN3_LEVEL 0x07 0xFF Y N Analog out 3 level x 255 4 dBFS 0 Mute ANALOG_IN4_LEVEL 0x08 0xFF Y N Analog out 4 level x 255 4 dBFS 0 Mute ANALOG_IN5_LEVEL 0x09 0xFF Y N Analog out 5 level x 25...

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Страница 23: ...kHz Today the interface is also used as a framework 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 AUDIOFLEX AUDIOFLEX GNSS Global Navigation Satellite System Satellite navigation system wi...

Страница 24: ...Albalá Ingenieros Manual DAB2008C01 DAB2008C01 24 ...

Страница 25: ...r two channel linearly represented digital audio data See also EBU Tech 3250 E ITU R BS 647 2 AES67 2018 AES standard for audio applications of networks High performance streaming audio over IP interoperability See also EBU Tech 3326 EBU Tech 3329 EBU Tech 3250 E 1992 Specificacion of the digital audio interface See also AES3 ITU R BS 647 2 25 ...

Страница 26: ...Albalá Ingenieros Manual DAB2008C01 DAB2008C01 26 ...

Страница 27: ...Albalá Ingenieros Manual DAB2008C01 7 VERSIONS Ver Date Description 0 0 19 04 2016 Preliminary Version 1 0 20 04 2016 First version ...

Страница 28: ...Albalá Ingenieros S A Medea 4 28037 Madrid Spain 34 913274453 www albalaing com info albalaing com ...

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