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<td align="center" colspan="1" rowspan="1" width="20%"><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=ned_5#ned_5" onclick="sync(this);return true" shape="rect">A</a></td>
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<div class="div">
<h2>Numbers</h2>

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<div class="topic">
<h3>1-safe replication</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id014597#id014597" onclick="sync(this);return true" shape="rect">See one-safe replication</a></p>
</div>


<a name="p2xhtm-repid-5" shape="rect"></a>
<div class="topic">
<h3>1-touch dialing /US/</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id08168#id08168" onclick="sync(this);return true" shape="rect">See speed dialling</a></p>
</div>


<a name="p2xhtm-repid-6" shape="rect"></a>
<div class="topic">
<h3>10 BASET</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id09404#id09404" onclick="sync(this);return true" shape="rect">See 10Base-T</a></p>
</div>


<a name="id020933" shape="rect"></a>
<div class="topic">
<h3>1000Base-LX/LH</h3>

<p>Gigabit Ethernet standard, based on IEEE 802.3, which uses two strands of multimode or single-mode optical cable per link</p>
</div>


<a name="id020184" shape="rect"></a>
<div class="topic">
<h3>1000Base-Sx</h3>

<p>standard (IEEE 802.3) for Gigabit Ethernet using two strands of multimode optical cable per link</p>
</div>


<a name="id020172" shape="rect"></a>
<div class="topic">
<h3>1000Base-T</h3>

<p>standard (IEEE 802.3ab) for Gigabit Ethernet over an unshielded twisted-pair wire</p>
</div>


<a name="id020934" shape="rect"></a>
<div class="topic">
<h3>1000Base-TX</h3>

<p>Gigabit Ethernet standard, based on IEEE 802.3, for data transfer over copper wire</p>
</div>


<a name="p2xhtm-repid-11" shape="rect"></a>
<div class="topic">
<h3>100Base-T</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id010327#id010327" onclick="sync(this);return true" shape="rect">See Fast Ethernet</a></p>
</div>


<a name="id013618" shape="rect"></a>
<div class="topic">
<h3>100BaseTX</h3>

<p>100-Mbps baseband Fast Ethernet specification using two pairs of either unshielded twisted pair (UTP) or shielded twisted pair (STP) wiring</p>
</div>


<a name="id09404" shape="rect"></a>
<div class="topic">
<h3>10Base-T; <em>10 BASET</em></h3>

<p>IEEE 802.3 media standard abbreviation for a 10 Mbps baseband Ethernet using twisted pair cabling</p>
</div>


<a name="p2xhtm-repid-14" shape="rect"></a>
<div class="topic">
<h3>1st line maintenance</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id010195#id010195" onclick="sync(this);return true" shape="rect">See first line maintenance</a></p>
</div>


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<div class="topic">
<h3>1x</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id020396#id020396" onclick="sync(this);return true" shape="rect">See CDMA2000 1X</a></p>
</div>


<a name="p2xhtm-repid-16" shape="rect"></a>
<div class="topic">
<h3>1x Evolution, Data and Voice</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id020398#id020398" onclick="sync(this);return true" shape="rect">See CDMA2000 1XEV-DV</a></p>
</div>


<a name="p2xhtm-repid-17" shape="rect"></a>
<div class="topic">
<h3>1x Evolution, Data Only</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id017104#id017104" onclick="sync(this);return true" shape="rect">See CDMA2000 1XEV-DO</a></p>
</div>


<a name="p2xhtm-repid-18" shape="rect"></a>
<div class="topic">
<h3>1xEV-DO</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id017104#id017104" onclick="sync(this);return true" shape="rect">See CDMA2000 1XEV-DO</a></p>
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<a name="p2xhtm-repid-19" shape="rect"></a>
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<h3>1xEV-DV</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id020398#id020398" onclick="sync(this);return true" shape="rect">See CDMA2000 1XEV-DV</a></p>
</div>


<a name="id011986" shape="rect"></a>
<div class="topic">
<h3>1XTREME</h3>

<p>global open standards proposal and technology, which provides integrated voice and data speeds up to 5.2 Mbps on a single 1.25 MHz in CDMA</p>
</div>


<a name="id015386" shape="rect"></a>
<div class="topic">
<h3>2 Mbit/s submultiplexer; <em>SM2M</em></h3>

<p>submultiplexer that combines 90 16 kbit/s subrate channels into one 2 Mbit/s transmission bus</p>
</div>


<a name="p2xhtm-repid-22" shape="rect"></a>
<div class="topic">
<h3>2-branch diversity</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id016502#id016502" onclick="sync(this);return true" shape="rect">See two-branch diversity</a></p>
</div>


<a name="p2xhtm-repid-23" shape="rect"></a>
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<h3>2-safe replication</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id014635#id014635" onclick="sync(this);return true" shape="rect">See two-safe replication</a></p>
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<a name="p2xhtm-repid-24" shape="rect"></a>
<div class="topic">
<h3>2-way uplink diversity</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id014505#id014505" onclick="sync(this);return true" shape="rect">See two-way uplink diversity</a></p>
</div>


<a name="id011987" shape="rect"></a>
<div class="topic">
<h3>2.5G</h3>

<p>further developments of current 2nd generation digital cellular technology before 3rd generation</p>
</div>


<a name="p2xhtm-repid-26" shape="rect"></a>
<div class="topic">
<h3>2B1Q</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id09405#id09405" onclick="sync(this);return true" shape="rect">See two binary, one quaternary</a></p>
</div>


<a name="p2xhtm-repid-27" shape="rect"></a>
<div class="topic">
<h3>2G</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id012040#id012040" onclick="sync(this);return true" shape="rect">See 2nd generation mobile communications</a></p>
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<a name="p2xhtm-repid-28" shape="rect"></a>
<div class="topic">
<h3>2G MSC</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id012551#id012551" onclick="sync(this);return true" shape="rect">See second generation mobile services switching centre</a></p>
</div>


<a name="id014364" shape="rect"></a>
<div class="topic">
<h3>2G networks</h3>

<p>networks of the 2nd generation of mobile communication systems</p>
</div>


<a name="id017149" shape="rect"></a>
<div class="topic">
<h3>2G SGSN; <em>2G-SGSN</em></h3>

<p>DX 200-based serving GPRS support node (SGSN) for GPRS networks</p>
</div>


<a name="p2xhtm-repid-31" shape="rect"></a>
<div class="topic">
<h3>2G-SGSN</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id017149#id017149" onclick="sync(this);return true" shape="rect">See 2G SGSN</a></p>
</div>


<a name="id013674" shape="rect"></a>
<div class="topic">
<h3>2M</h3>

<p>external 2048 kbit/s synchronisation source conforming to ITU-T G.703</p>
</div>


<a name="p2xhtm-repid-33" shape="rect"></a>
<div class="topic">
<h3>2N</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id08957#id08957" onclick="sync(this);return true" shape="rect">See 2N redundancy</a></p>
</div>


<a name="id08957" shape="rect"></a>
<div class="topic">
<h3>2N redundancy; <em>2N</em>; <em>duplication</em></h3>

<p>redundancy scheme in which two units are used to complete a task for which one is enough at any given time</p>
</div>


<a name="p2xhtm-repid-35" shape="rect"></a>
<div class="topic">
<h3>2nd generation</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id012040#id012040" onclick="sync(this);return true" shape="rect">See 2nd generation mobile communications</a></p>
</div>


<a name="id012040" shape="rect"></a>
<div class="topic">
<h3>2nd generation mobile communications; <em>2nd generation</em>; <em>2G</em></h3>

<p>current digital cellular system, for example, GSM900/1800/1900, IS-95 (CDMA), IS-136 (TDMA), and PDC</p>
</div>


<a name="p2xhtm-repid-37" shape="rect"></a>
<div class="topic">
<h3>2nd line maintenance</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id010197#id010197" onclick="sync(this);return true" shape="rect">See second line maintenance</a></p>
</div>


<a name="p2xhtm-repid-38" shape="rect"></a>
<div class="topic">
<h3>2PC</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id017226#id017226" onclick="sync(this);return true" shape="rect">See two-phase commit protocol</a></p>
</div>


<a name="p2xhtm-repid-39" shape="rect"></a>
<div class="topic">
<h3>2PC</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id04544#id04544" onclick="sync(this);return true" shape="rect">See two-phase commitment</a></p>
</div>


<a name="p2xhtm-repid-40" shape="rect"></a>
<div class="topic">
<h3>2PL</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id04535#id04535" onclick="sync(this);return true" shape="rect">See two-phase locking</a></p>
</div>


<a name="id011206" shape="rect"></a>
<div class="topic">
<h3>30 B + D / DSS1</h3>

<p>primary rate access between the base station controller (BSC) and another network element, which is part of the ISDN Abis feature</p>
</div>


<a name="id015036" shape="rect"></a>
<div class="topic">
<h3>3DES; <em>triple DES</em></h3>

<p>encryption that is based on a DES algorithm, in which three different keys are utilised</p>
</div>


<a name="p2xhtm-repid-43" shape="rect"></a>
<div class="topic">
<h3>3G</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id011546#id011546" onclick="sync(this);return true" shape="rect">See 3rd generation mobile communications</a></p>
</div>


<a name="p2xhtm-repid-44" shape="rect"></a>
<div class="topic">
<h3>3G MSC</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id012552#id012552" onclick="sync(this);return true" shape="rect">See third generation mobile services switching centre</a></p>
</div>


<a name="id021016" shape="rect"></a>
<div class="topic">
<h3>3G MSC; <em>wideband MSC</em>; <em>WMSC</em></h3>

<p>mobile services switching centre (MSC) for a third generation network that is capable of supporting wideband services</p>
</div>


<a name="id014365" shape="rect"></a>
<div class="topic">
<h3>3G networks</h3>

<p>networks of the 3rd generation of mobile communication systems</p>
</div>


<a name="id010141" shape="rect"></a>
<div class="topic">
<h3>3G SGSN; <em>3G-SGSN</em></h3>

<p>serving GPRS support node (SGSN) for 3rd generation mobile networks</p>
</div>


<a name="id020504" shape="rect"></a>
<div class="topic">
<h3>3G UP</h3>

<p>collection of the user plane (UP) parameters specified by the 3rd Generation Partnership Project (3GPP)</p>
</div>


<a name="id012666" shape="rect"></a>
<div class="topic">
<h3>3G user equipment; <em>user equipment (3G)</em>; <em>UE</em></h3>

<p>terminal that supports a UMTS subscriber identity module (USIM) and the Uu interface, with the USIM inserted</p>
</div>


<a name="p2xhtm-repid-50" shape="rect"></a>
<div class="topic">
<h3>3G-SGSN</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id010141#id010141" onclick="sync(this);return true" shape="rect">See 3G SGSN</a></p>
</div>


<a name="id021041" shape="rect"></a>
<div class="topic">
<h3>3G-VMSC</h3>

<p>visited mobile services switching centre (VMSC) for third generation mobile networks</p>
</div>


<a name="p2xhtm-repid-52" shape="rect"></a>
<div class="topic">
<h3>3GPP</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id010840#id010840" onclick="sync(this);return true" shape="rect">See 3rd Generation Partnership Project</a></p>
</div>


<a name="id04312" shape="rect"></a>
<div class="topic">
<h3>3L description language</h3>

<p>language describing the operation of multiprocessor systems and how different system functions proceed in different units and processes</p>
</div>


<a name="p2xhtm-repid-54" shape="rect"></a>
<div class="topic">
<h3>3N</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id010364#id010364" onclick="sync(this);return true" shape="rect">See 3N redundancy</a></p>
</div>


<a name="id010364" shape="rect"></a>
<div class="topic">
<h3>3N redundancy; <em>3N</em></h3>

<p>redundancy scheme in which three units are used to complete a task for which one or two is enough at any given time</p>
</div>


<a name="p2xhtm-repid-56" shape="rect"></a>
<div class="topic">
<h3>3PTY</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id05487#id05487" onclick="sync(this);return true" shape="rect">See three party service</a></p>
</div>


<a name="id011546" shape="rect"></a>
<div class="topic">
<h3>3rd generation mobile communications; <em>3G</em></h3>

<p>digital wideband mobile communication system that aims at worldwide use</p>
</div>


<a name="id010840" shape="rect"></a>
<div class="topic">
<h3>3rd Generation Partnership Project; <em>3GPP</em></h3>

<p>project in which standards organisations and other related bodies have agreed to co-operate for the production of globally applicable technical specifications for a third generation mobile system</p>
</div>


<a name="p2xhtm-repid-59" shape="rect"></a>
<div class="topic">
<h3>3rd line maintenance</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id010198#id010198" onclick="sync(this);return true" shape="rect">See third line maintenance</a></p>
</div>


<a name="p2xhtm-repid-60" shape="rect"></a>
<div class="topic">
<h3>4-way uplink diversity</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id014506#id014506" onclick="sync(this);return true" shape="rect">See four-way uplink diversity</a></p>
</div>


<a name="id021190" shape="rect"></a>
<div class="topic">
<h3>6over4</h3>

<p>mechanism which uses an IPv4 domain that supports IPv4 multicast to allow isolated IPv6 hosts to act like fully functional IPv6 hosts without direct contact with an IPv6 router</p>
</div>


<a name="id016439" shape="rect"></a>
<div class="topic">
<h3>6to4</h3>

<p>transition mechanism which provides a way to connect IPv6 end-site networks by creating a tunnel over the intervening IPv4 network</p>
</div>


<a name="id016934" shape="rect"></a>
<div class="topic">
<h3>802.11I</h3>

<p>specification for an enhanced security for the IEEE 802.11 based wireless networks</p>
</div>


<a name="id016933" shape="rect"></a>
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<h3>802.1X; <em>port-based network access control</em></h3>

<p>IEEE standard for local and metropolitan area networks which makes use of the physical access characteristics of IEEE 802 local area network (LAN) infrastructures in order to provide a means of authenticating and authorising devices attached to a LAN port that has point-to-point characteristics, and of preventing access to that port in case the authentication and authorisation process fails</p>
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<h3>900 service /US/</h3>

<p><a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id04632#id04632" onclick="sync(this);return true" shape="rect">See premium rate</a></p>
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