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<div class="div">
<h1>Support for PCU2</h1>

<p>PCU2 is a high capacity embedded plug-in unit that provides additional
(E)GPRS processing power and extended functionality in BSS11.5. Second Generation
PCUs have an enhanced design architecture that enable the network to meet
the real time traffic requirements of new services and provide means to new
enhanced functionality (GERAN) beyond (E)GPRS. </p>


<p>There are two new PCU2 plug-in unit variants: PCU2-U (BSCE, BSC2E, BSC2A,
BSCi and BSC2i) and PCU2-D (BSC3i).</p>


<p>Main hardware improvements when compared to the other PCU plug-in units
used in BSC include:</p>


<ul>
<li><p>more processing capacity:</p>


<ul>
<li><p>PQII: from 300MHz to 450 MHz</p>
</li>
<li><p>DSP: from 100MHz to 200MHz</p>
</li>
</ul>
</li>
<li><p>16MB External memory for each DSP</p>
</li>
<li><p>new serial interface between PQII and DSPs</p>
</li>
<li><p>PCM interface through one serial interface</p>
</li>
</ul>
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