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<title><![CDATA[EC21 Product Catalogs - voice 4e1]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/voice 4e1.html]]></link><item>
<title><![CDATA[4E1 PDH Optical Transmitter &amp; Receiver]]></title><link><![CDATA[https://dailianxu.en.ec21.com/4E1-PDH-Optical-Transmitter--2131172_2131312.html]]></link><description><![CDATA[4E1 PDH Optical Transmitter &amp; Receiver is a photoelectricity syncretic transmission apparatus with 120 channels (be equal to 120 voice channels) . It takes GSI as core and provides E1 transmission wh]]></description><pubDate><![CDATA[20081120]]></pubDate></item>

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