289 lines
16 KiB
HTML
289 lines
16 KiB
HTML
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<!doctype HTML public "-//W3C//DTD HTML 4.0 Frameset//EN">
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<title>CobraNet Multi-unicast</title>
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<h1 class="firstHeading">CobraNet Multi-unicast</h1>
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<h2><span style="font-size: 14.0pt;">Overview</span></h2>
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<p><font face="Arial" class="hcp1"><font color="#000000">CobraNet
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bundles are capable of sending audio to up to four destinations each,
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bandwidth-dependent.</font></font></p>
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<p><font face="Arial" class="hcp1"><font color="#000000">Multi-unicast
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is to be considered an advanced user feature and changing the max receivers
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property from the default of 1 is to be used with caution. The limits
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on how many bundles can be transmitter from a node are dependent on bandwidth
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available on the network and DSP usage on the CM1 module. Every multi-unicast
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configuration should be tested using real hardware before being deployed.</font></font></p>
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<p><font face="Arial" class="hcp1"><font color="#000000"><span class="hcp2">Configuring the multi-unicast feature</span></font></font></p>
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<p><font face="Arial" class="hcp1"><font color="#000000">A
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setting in the properties grid of HiQnet London Architect, allows the
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maximum receivers for a given transmit bundle to be set to between 1 and
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4.</font></font></p>
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<p><font face="Arial" class="hcp1"><font color="#000000">To
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change this, open the configuration view of a BLU-80 or BLU-32 in the
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design. Click on a transmit bundle and click the properties tab to show
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the property sheet for the CobraNet transmit bundle.</font></font></p>
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<p><font face="Arial" class="hcp1"><img src="MAIN00000106.gif" alt="MAIN00000106.gif" title="MAIN00000106.gif" width="300" height="330" border="0" class="hcp3"></font></p>
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<p><font face="Arial" class="hcp1"><font color="#000000">The
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default setting for a unicast bundle Maximum Receivers is 1, giving normal
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unicast bundle behaviour of one transmitter to one receiver. The transmit
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and receive bundle pair are coloured green under these circumstances.</font></font></p>
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<p><font face="Arial" class="hcp1"><img src="MAIN00000107.gif" alt="MAIN00000107.gif" title="MAIN00000107.gif" width="182" height="120" border="0" class="hcp3"></font></p>
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<p><font face="Arial" class="hcp1"><font color="#000000">Changing
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this setting to 2, 3 or 4 will grant permission for additional receive
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bundles to receive audio. When more than 1 receiving bundle is configured
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with the same bundle number, the transmit bundle and associated receive
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bundles change colour from green to purple.</font></font></p>
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<p><font face="Arial" class="hcp1"><img src="MAIN00000108.gif" alt="MAIN00000108.gif" title="MAIN00000108.gif" width="184" height="120" border="0" class="hcp3"></font></p>
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<p><font face="Arial" class="hcp1"><font color="#000000"><span class="hcp2">Monitoring and fault detection</span></font></font></p>
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<p><font face="Arial" class="hcp1"><font color="#000000">A
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state variable is provided which indicates the number of receivers that
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have been configured to receive a bundle. Please note, this does not indicate
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how many receivers are actually receiving the bundle, but how many have
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requested it. The Maximum Receivers setting presides. To use this state
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variable, drag it from the design tree to a control panel, and when online
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it will reflect the number of receivers requesting this bundle.</font></font></p>
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<p><font face="Arial" class="hcp1"><img src="MAIN00000109.gif" alt="MAIN00000109.gif" title="MAIN00000109.gif" width="321" height="638" border="0" class="hcp3"></font></p>
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<p><font face="Arial" class="hcp1"><font color="#000000">Reset-able
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dropout counters are provided on the bundle control panels. To ensure
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uninterrupted audio, verify that these remain at zero under all operating
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conditions of your network.</font></font></p>
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<p><font face="Arial" class="hcp1"><img src="MAIN00000110.gif" alt="MAIN00000110.gif" title="MAIN00000110.gif" width="563" height="53" border="0" class="hcp3"></font></p>
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<p><font face="Arial" class="hcp1"><font color="#000000"><span class="hcp2">Capabilities</span></font></font></p>
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<p><font face="Arial" class="hcp1"><font color="#000000">The
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figures quoted below are maximum bundle and channel counts found empirically,
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however, we strongly recommend making full use of the dropout counters
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on bundle control panels and the error lights on the default panel to
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qualify your design.</font></font></p>
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<table wrapperparagraphselector="P" style="margin-top: 14pt; border-collapse: separate;
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border-collapse: separate;" cellspacing="2" width="75%" border="1">
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<tr>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000"><span class="hcp2">Sample rate</span></font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000"><span class="hcp2">Latency</span></font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000"><span class="hcp2">Bit depth</span></font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000"><span class="hcp2">number of transmit bundles</span></font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000"><span class="hcp2">channels per bundle</span></font></font></p></td>
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</tr>
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<tr>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">48k</font></font></p></td>
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<td class="hcp4"><p class="hcp6"><font face="Arial" class="hcp1"><font color="#000000">5.333</font></font></p>
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<ol>
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<li class="hcp7"><p class="hcp5"> </p></li>
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</ol></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">16
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bit</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">13</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">8
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channels</font></font></p></td>
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</tr>
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<tr>
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<td class="hcp4"><p class="hcp5"> </p></td>
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<td class="hcp4"><p class="hcp5"> </p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">20
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bit</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">11</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">8
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channels</font></font></p></td>
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</tr>
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<tr>
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<td class="hcp4"><p class="hcp5"> </p></td>
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<td class="hcp4"><p class="hcp5"> </p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">24
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bit</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">10</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">7
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channels</font></font></p></td>
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</tr>
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<tr>
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<td class="hcp4"><p class="hcp5"> </p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">2.666</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">16
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bit</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">12</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">8
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channels</font></font></p></td>
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</tr>
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<tr>
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<td class="hcp4"><p class="hcp5"> </p></td>
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<td class="hcp4"><p class="hcp5"> </p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">20
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bit</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">10</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">8
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channels</font></font></p></td>
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</tr>
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<tr>
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<td class="hcp4"><p class="hcp5"> </p></td>
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<td class="hcp4"><p class="hcp5"> </p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">24
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bit</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">8</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">7
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channels</font></font></p></td>
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</tr>
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<tr>
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<td class="hcp4"><p class="hcp5"> </p></td>
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<td class="hcp4"><p class="hcp6"><font face="Arial" class="hcp1"><font color="#000000">1.333</font></font></p>
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<ol>
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<li class="hcp7"><p class="hcp5"> </p></li>
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</ol></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">16
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bit</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">8</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">8
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channels</font></font></p></td>
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</tr>
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<tr>
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<td class="hcp4"><p class="hcp5"> </p></td>
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<td class="hcp4"><p class="hcp5"> </p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">20
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bit</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">8</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">8
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channels</font></font></p></td>
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</tr>
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<tr>
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<td class="hcp4"><p class="hcp5"> </p></td>
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<td class="hcp4"><p class="hcp5"> </p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">24
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bit</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">6</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">7
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channels</font></font></p></td>
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</tr>
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<tr>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">96k</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">5.333</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">16
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bit</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">14</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">4
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channels</font></font></p></td>
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</tr>
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<tr>
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<td class="hcp4"><p class="hcp5"> </p></td>
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<td class="hcp4"><p class="hcp5"> </p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">20
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bit</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">11</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">4
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channels</font></font></p></td>
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</tr>
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<tr>
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<td class="hcp4"><p class="hcp5"> </p></td>
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<td class="hcp4"><p class="hcp5"> </p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">24
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bit</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">12</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">3
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channels</font></font></p></td>
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</tr>
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<tr>
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<td class="hcp4"><p class="hcp5"> </p></td>
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<td class="hcp4"><p class="hcp6"><font face="Arial" class="hcp1"><font color="#000000">2.666</font></font></p>
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<ol>
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<li class="hcp7"><p class="hcp5"> </p></li>
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</ol></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">16
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bit</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">12</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">4
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channels</font></font></p></td>
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</tr>
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<tr>
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<td class="hcp4"><p class="hcp5"> </p></td>
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<td class="hcp4"><p class="hcp5"> </p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">20
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bit</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">10</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">4
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channels</font></font></p></td>
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</tr>
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<tr>
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<td class="hcp4"><p class="hcp5"> </p></td>
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<td class="hcp4"><p class="hcp5"> </p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">24
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bit</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">8</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">3
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channels + 1x20 bit</font></font></p></td>
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</tr>
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<tr>
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<td class="hcp4"><p class="hcp5"> </p></td>
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<td class="hcp4"><p class="hcp5"> </p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">24
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bit</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">11</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">3
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channels</font></font></p></td>
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</tr>
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<tr>
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<td class="hcp4"><p class="hcp5"> </p></td>
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<td class="hcp4"><p class="hcp6"><font face="Arial" class="hcp1"><font color="#000000">1.333</font></font></p>
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<ol>
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<li class="hcp7"><p class="hcp5"> </p></li>
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</ol></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">16
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bit</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">8</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">4
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channels</font></font></p></td>
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</tr>
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<tr>
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<td class="hcp4"><p class="hcp5"> </p></td>
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<td class="hcp4"><p class="hcp5"> </p></td>
|
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">20
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bit</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">7</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">4
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channels</font></font></p></td>
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</tr>
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<tr>
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<td class="hcp4"><p class="hcp5"> </p></td>
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<td class="hcp4"><p class="hcp5"> </p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">24
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bit</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">6</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">3
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channels + 1x20 bit</font></font></p></td>
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</tr>
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<tr>
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<td class="hcp4"><p class="hcp5"> </p></td>
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<td class="hcp4"><p class="hcp5"> </p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">24
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bit</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">7</font></font></p></td>
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<td class="hcp4"><p class="hcp5"><font face="Arial" class="hcp1"><font color="#000000">3
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channels</font></font></p></td>
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</tr>
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</table>
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</body>
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</html>
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