AudioScience COBRANET ASI2416 Manual

AudioScience COBRANET ASI2416 Manual

Modular 1ru interface
Table of Contents

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1 DESCRIPTION

The ASI2416 is a CobraNet
rack mount format providing 16 channels of CobraNet
receive and transmit.
The unit can be populated with up to four function specific
modules, allowing up to 16 channels of analog or
AES/EBU I/O. Each module has an interchangeable
connector that may be configured with either a pluggable
terminal block, StudioHub+
connector with XLR breakout cables.
The ASI2416 features a powerful Texas Instruments 32bit
floating point DSP that allows sophisticated
switching/mixing. A graphics display on the unit's front
panel shows peak meters and CobraNet status.
AudioScience provides application software that may be
used to set up the ASI2416. ASIControl sets up all
internal features of the unit. ASIControl or CobraNet
Discovery allows CobraNet routing connections to be set
up between the ASI2416 and any other CobraNet device
on the network.

3 MODULE INFORMATION

Model
ASI1431
ASI1432
ASI1433
ASI1441
ASI1442
ASI1443
ASI1445
Configure the ASI2416 as needed - use the order form found
CobraNet is a registered trademark of Cirrus Logic and StudioHub+ is a registered trademark of Radio Systems, Inc.
www.audioscience.com
18 November 2008
audio interface in a 1RU
®
RJ-45, or a 50pin Centronics
Inputs
Outputs
8
8
8
0
0
8
8
8
8
0
0
8
16
16
MODULAR COBRANET

2 FEATURES

16 CobraNet
input channels and 16 CobraNet output
channels on 100Mbit Ethernet with redundant RJ-45
connectors
4 CobraNet Transmitters and 8 CobraNet Receivers.
1RU rack-mount unit
Modular architecture allows up to 4 I/O modules to be
inserted into the back of the unit
Module connector options include Terminal Block
(Phoenix style), StudioHub+
Centronics connector with XLR breakout cables
Available modules include eight-channel analog I/O and
eight channel AES/EBU I/O.
Powerful floating point DSP provides metering, level
control and up to 20 dB gain on all signal paths.
Interoperable with ASI6416 CobraNet Sound Card and
other third party CobraNet equipment
Built-in 90-260VAC power supply
Input/Output Type
Balanced analog
Balanced analog
ASI1491
Balanced analog
ASI1492
ASI1493
AES/EBU
AES/EBU
AES/EBU
GPIO Optos/Relays
ASI1493
here
to customize yours.
1
ASI2416
1RU INTERFACE
®
RJ-45, or 50pin
Connector Type
(50 pin Centronics)
(StudioHub+ RJ-45)
(Terminal block)
(Terminal block)
18 November 2008

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Summary of Contents for AudioScience COBRANET ASI2416

  • Page 1: Description

    Available modules include eight-channel analog I/O and panel shows peak meters and CobraNet status. eight channel AES/EBU I/O. AudioScience provides application software that may be • Powerful floating point DSP provides metering, level used to set up the ASI2416. ASIControl sets up all control and up to 20 dB gain on all signal paths.
  • Page 2: Specifications

    Latency 1.33, 2.66 or 5.33ms Control Protocol SNMP using standard CobraNet MIBs. SIGNAL PROCESSING Texas Instruments TMS320C6713 @ 225MHz Control Protocol AudioScience HPI using UDP ANALOG INPUT/OUTPUT Type Balanced Input Level -10 to +24dBu in 1dBu steps Input Impedance 10K ohms...
  • Page 3: Table Of Contents

    Module Input/Output Meters – AES/EBU Display....................21 12.3 ......................22 ESETTING ALL CONTROLS TO DEFAULT SETTINGS 12.4 ..........................22 ESETTING OBRA ET PERSISTENCE 12.5 ................................22 ETWORK INTERFACE 12.5.1 ASI2416 Network Mask Assignment .........................22 CONFIGURATION .............................. 23 13.1 ASIC .........................23 NSTALLING AND UNNING ONTROL www.audioscience.com 18 November 2008...
  • Page 4 13.7 .............................33 OBRA ONFIGURATION 13.7.1 CobraNet Configuration Interface..........................34 13.7.2 How To Configure and Transmit a Bundle .......................36 13.7.3 Change IP Address ..............................36 13.8 ................................37 PDATE IRMWARE 13.9 ............................38 ESTORE ONFIGURATION 13.9.1 Interface ..................................39 13.10 ..................................39 EFERENCES www.audioscience.com 18 November 2008...
  • Page 5: Table Of Figures

    Figure 20. ASIControl node displays with volumes....................... 31 Figure 21. Laptop to ASI2416 connection........................32 Figure 21. Network Driver support selected when installing an AudioScience driver............ 33 Figure 22. Selecting a CobraNet device to configure....................33 Figure 23. CobraNet Configuration dialog box accessed via ASIControl............... 33 Figure 24.
  • Page 6: Revisions

    ASI2416 6 REVISIONS Date Changes 21 October 2007 Updated format. 07 November 2008 Fix audio channel maps. 18 November 2008 Updated number of modules supported. www.audioscience.com 18 November 2008...
  • Page 7: Important Safety Instructions

    This symbol is intended to alert the users to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product www.audioscience.com 18 November 2008...
  • Page 8 3. This is a Class 1 apparatus, and as such must be connected to a mains socket outlet with a protective earthing connection. 4. The mains plug is used as the disconnect device and shall remain readily operable. www.audioscience.com 18 November 2008...
  • Page 9: Notices

    Operation of this equipment in a residential area is likely to cause harmful interference, in which case the user will be required to correct the interference at his or her own expense. www.audioscience.com 18 November 2008...
  • Page 10: Architects & Engineers Specification

    The CobraNet Digital Audio Interface shall be CE, FCC and UL / C-UL marked, and shall incorporate AES48-2005 Grounding and EMC best practices. The CobraNet Digital Audio Interface shall be compliant with EU Directive 2002/95/EC, the RoHS directive. Warranty shall be 3 years. The CobraNet Audio Interface shall be ASI2416. www.audioscience.com 18 November 2008...
  • Page 11: Introduction

    A graphics display on the unit’s front panel shows peak meters and CobraNet status. AudioScience provides application software that may be used to set up the ASI2416. ASIControl sets up all internal features of the unit such as levels also allows CobraNet routing connections to be set up between the ASI2416 and any other compliant CobraNet device on the network.
  • Page 12: Cobranet Routing

    Somewhat obviously, these channels are called the Audio Routing Channels. On an ASI2416 audio routing channels 1 – 16 map to input channels 1 – 16. Similarly, on the output side audio routing channels 33-48 map to output channels 1 –16. www.audioscience.com 18 November 2008...
  • Page 13: Cobranet Transmitters

    A value of 0 indicates an unused slot in the bundle. • txSubFomat – a sequence of format specifiers that define how many bits per sample are placed in the bundle. • txSubCount – the number of channels in this bundle. www.audioscience.com 18 November 2008...
  • Page 14: Cobranet Receivers

    CobraNet standard through the use of off-the-shelf CobraNet silicon from Cirrus Logic. More detailed CobraNet information is available from Cirrus Logic’s website. The following links may be helpful: CobraNet Info: http://www.cobranet.info/en/support/cobranet/ CobraNet CobraCAD and CobraNet Discovery: http://www.cobranet.info/dispatch/forms/sup/boardreg/breg/BregController.jpf CobraNet Audio Routing Primer: http://cirrus.com/en/pubs/appNote/CobraNet_AudioRoutingPrimer.pdf Hardware Manual and Programmer’s Reference: http://www.cobranet.info/en/support/cobranet/developer/tech_data_sheet.html www.audioscience.com 18 November 2008...
  • Page 15: Hardware Installation

    ASI2416’s power supply will automatically adjust. Use only an AC power source with a protective earth ground. The ASI2416 has no power switch. Detach the AC power cord to remove power to the ASI2416. www.audioscience.com 18 November 2008...
  • Page 16: Modules And Audio Connections

    ASI2416, as stated above. ASI1493 ASI1491 ASI1492 Terminal Block 50 pin Centronics StudioHub+ Refer to the rear label of the connector, or the module’s datasheet listed here under Resources, for pinout information. www.audioscience.com 18 November 2008...
  • Page 17: Operation

    Keep button depressed while power is applied. 12.2 Front Panel Display The ASI2416 display shows status readings from the ASI2416. The select button should be pressed to move to the next display. In order the displays are: www.audioscience.com 18 November 2008...
  • Page 18: Cobranet Transmit And Receive Peak Meters Display

    X < -40 dBFS, CobraNet Rx no connect In the above table X is a peak meter reading in dBFS. Figure 4. ASI2416 display of CobraNet peak meters and bar height mapping to dBFS range. www.audioscience.com 18 November 2008...
  • Page 19: Cobranet Bundle Number And Channel Settings Display

    This display shows the ASI2416s network MAC address and IP address. If the IP address has been assigned dynamically then DYNAM is displayed. If has been assigned statically then STATIC is shown. Figure 6. ASI2416 MAC and IP address display. www.audioscience.com 18 November 2008...
  • Page 20: Product Information Display

    Audio peak levels in the range of -40 dBFS to -20 dBFS are displayed using 5 dB per pixel. • Audio peak levels in the range of -20 dFS to 0 dBFS are displayed starting at 6 pixels high and use addition pixels at a rate of 1 pixel very 2 dB. www.audioscience.com 18 November 2008...
  • Page 21: Module Input/Output Meters - Aes/Ebu Display

    Audio peak levels in the range of -20 dFS to 0 dBFS are displayed starting at 6 pixels high and use addition pixels at a rate of 1 pixel very 2 dB. • No meter bar indicates no valid input signal present on that AES/EBU stereo pair. www.audioscience.com 18 November 2008...
  • Page 22: Resetting All Controls To Default Settings

    The networking stack used for UDP messaging on the ASI2416 uses the following rules to automatically assign a NetMask: Class A subnet: 1.0.0.0 - 127.0.0.0, Private allocation range: 10.0.0.0 - 10.255.255.255 NetMask : 255.0.0.0 Class B subnet: 128.0.0.0 - 191.255.0.0, Private allocation range: 172.16.0.0 - 172.31.255.255 NetMask : 255.255.0.0 otherwise NetMask: 0.0.0.0 www.audioscience.com 18 November 2008...
  • Page 23: Configuration

    ASIControl is available from the AudioScience Windows Driver’s web page at AudioScience. It is embedded in a standard audio driver. If you are using an ASI6416 or another AudioScience audio adapter in the PC, choose between the Wave, WDM, and Combo drivers (the driver type to install will be dependant upon the application used with the AudioScience adapter;...
  • Page 24: Adapter_Info

    In the example below, the Line_Out 1 node in the topology view of ASIControl has been selected. Its Level will show up on the right side of ASIControl. The same is done for a Line_In to see its Level. Figure 12. Using ASIControl to select Line_Out 1. www.audioscience.com 18 November 2008...
  • Page 25: Meter

    13.3 Meter Meters in ASIControl are located on audio nodes and display the audio level as the audio signal passes through the node. Most AudioScience devices return both RMS and peak level readings and ASIControl displays both simultaneously. 13.3.1 Interface Figure 14.
  • Page 26: Developer

    ASX – Meters are read using the ASX_Meter_xxx() API. DirectSound – TBD. 13.3.2.2 Linux APIs HPI – Meters are read using the HPI_Meterxxx() API. ASX – Meters are read using the ASX_Meter_xxx() API. ALSA – TBD. www.audioscience.com 18 November 2008...
  • Page 27: Setting Aes/Ebu Clocking

    AES/EBU Output #2 Converter Transmitter From AS I2416 Mixer Sample Rate AES/EBU AES/EBU Output #3 Converter Transmitter Sample Rate AES/EBU AES/EBU Output #4 Converter Transmitter Output clock to next module Figure 15. ASI2416 AES/EBU clocking for Module 1. www.audioscience.com 24 NOVEMBER 2008...
  • Page 28: Aes/Ebu Inputs

    Valid sample rates are 32, 44.1, 48, 64, 88.2 and 96kHz. There is nothing to set for the AES/EBU inputs since the sample rate conversion to the reference CobraNet clock takes place automatically in hardware. www.audioscience.com 18 NOVEMBER 2008...
  • Page 29: Aes/Ebu Outputs

    The first step in setting the AES/EBU output clocking is to select Line_Out 1in ASIControl. Figure 17. Selecting Line_Out 1 in ASIControl prior to setting Tx clock source. The node pane should now display the following: Figure 18. ASIControl display of AES/EBU Line_Out 1 node controls. www.audioscience.com 18 NOVEMBER 2008...
  • Page 30: Common Aes/Ebu Clocking Configurations

    SampleClock source to be “AES/EBU In 1”. This will sync all outputs on the first module to AES/EBU In 1. To sync the outputs on the second module as well, go to Line_Out 9 and set the SampleClock source to “Previous Module”. www.audioscience.com 18 NOVEMBER 2008...
  • Page 31: Input And Output Volume Adjustment

    CobraNet network. 13.6 Routing Audio Using CobraNet 13.6.1 Default settings By default the ASI2416 comes up with the following default CobraNet settings: sysDescription: AudioScience ASI2416 Modular Interface CobraNet version 2.11.4(.3) CS181022 (read only) sysName: ASI2416 sysLocation: blank sysContact: blank Mode and Rate: 20bits/sample, 48 kHz, 5 1/3 ms Persistence: off www.audioscience.com...
  • Page 32: Persistence

    13.6.3 Simple crossover example The ASI2416 can be configured using a laptop and an Ethernet crossover cable. The laptop’s network adapter must have a static IP address. Crossover Ethernet cable. Figure 21. Laptop to ASI2416 connection. www.audioscience.com 18 NOVEMBER 2008...
  • Page 33: Cobranet Configuration

    The first prerequisite to support CobraNet configuration is to select network audio driver support during driver installation. When an AudioScience driver install EXE is run, three choices are available. Select “Install Standard + Network Audio Driver” when installing AudioScience CobraNet products, then run the driver install EXE as usual.
  • Page 34: Cobranet Configuration Interface

    The basic CobraNet audio routing component, can have 0 to 8 audio channels. Assign specific bundle numbers here. Bundle numbers can be 0 and 1 – 65535 0 for turning transmitter off or for silence 1-255 for multicast 256-65279 for unicast 65280-65535 for private www.audioscience.com 18 NOVEMBER 2008...
  • Page 35 Status: Displays ‘Receiving’ when a bundle is successfully routed to it. Dropouts: Displays number of times bundle reception has been interrupted. Interruptions can be caused by transmitter failure or by reconfiguring the receiver. www.audioscience.com 18 NOVEMBER 2008...
  • Page 36: How To Configure And Transmit A Bundle

    CobraNet device is now feeding audio back to itself. 13.7.3 Change IP Address Change the IP address of a CobraNet device here. After right clicking on a CobraNet device in ASIControl and selecting “Change IP Address…”, the dialog box below opens. www.audioscience.com 18 NOVEMBER 2008...
  • Page 37: Update Firmware

    The ASI2416 firmware can be upgraded using ASIControl. After right clicking on a CobraNet device in ASIControl and selecting “Update Firmware…”, the dialog box below opens. 13.8.1.1 Interface Figure 25. The ASI2416's Firmware Update dialog box. www.audioscience.com 18 NOVEMBER 2008...
  • Page 38: Save/Restore Configuration

    Save a device’s settings (trim, level, etc.), as set up in the left pane of ASIControl, for later retrieval using the Save and Restore options. These options are found in ASIControl by right clicking on the device as shown in the image below. Figure 26. Right-clicking on a CobraNet device. www.audioscience.com 18 NOVEMBER 2008...
  • Page 39: Interface

    To retrieve the file, simply select the Restore Configuration option and if necessary, browse to the location of the saved xml file. Click the Open button to install the configuration settings. 13.10 References http://cirrus.com/en/pubs/appNote/CobraNet_AudioRoutingPrimer.pdf http://cirrus.com/en/pubs/manual/CobraNet_Programmer_Manual_PM25.pdf <end> www.audioscience.com 18 NOVEMBER 2008...

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