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<TITLE>Airspan Product Overview</TITLE>
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<TD><IMG SRC="sleft.gif" HEIGHT=49 WIDTH=29></TD>
<TD><B><FONT FACE="Arial"><FONT SIZE=+0>System Description:</FONT></FONT></B></TD>
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<P><IMG SRC="airspnst.gif" HEIGHT=108 WIDTH=108>
<P><FONT FACE="Arial"><FONT SIZE=-1>Subscriber Terminal</FONT></FONT>
<BR>
<BR>
<BR>
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<P><IMG SRC="airspact.jpg" HEIGHT=298 WIDTH=82>
<P><FONT FACE="Arial"><FONT SIZE=-1>Central Terminal</FONT></FONT>
<BR>
<BR> </TD>
<TD VALIGN=TOP WIDTH="470"><FONT FACE="Arial"><FONT SIZE=-1><B>Major Features
of Airspan</B> </FONT></FONT>
<UL>
<LI>
<FONT FACE="Arial"><FONT SIZE=-1>CDMA-based Wireless Fixed Access System </FONT></FONT></LI>
<LI>
<FONT FACE="Arial"><FONT SIZE=-1>Supports a full range of Telecommunication
Services: Telephony, Fax, In-band Data Modems, Leased Line Data and Basic
Rate ISDN </FONT></FONT></LI>
<LI>
<FONT FACE="Arial"><FONT SIZE=-1>Full Public Network Compatibility </FONT></FONT></LI>
<LI>
<FONT FACE="Arial"><FONT SIZE=-1>Can be used transparently with other Access
equipment </FONT></FONT></LI>
<LI>
<FONT FACE="Arial"><FONT SIZE=-1>Highly Efficient use of Radio Spectrum </FONT></FONT></LI>
<LI>
<FONT FACE="Arial"><FONT SIZE=-1>Inherently Secure Radio Interface </FONT></FONT></LI>
<LI>
<FONT FACE="Arial"><FONT SIZE=-1>Simple to Install, Operate and Maintain </FONT></FONT></LI>
<LI>
<FONT FACE="Arial"><FONT SIZE=-1>Meets ETSI TM4 P-MP DS-CDMA Specification
(ETS 301 055)</FONT></FONT></LI>
<LI>
<FONT FACE="Arial"><FONT SIZE=-1>Operates in numerous bands between 1.35
to 4.0 GHz </FONT></FONT></LI>
<LI>
<FONT FACE="Arial"><FONT SIZE=-1>Fixed and Demand Assignment of Radio Channels </FONT></FONT></LI>
<LI>
<FONT FACE="Arial"><FONT SIZE=-1>Supports up to 2000 64kbit/s Telephony
Lines per Cell </FONT></FONT></LI>
</UL>
<FONT FACE="Arial"><FONT SIZE=-1><B>General Description</B> </FONT></FONT>
<P><FONT FACE="Arial"><FONT SIZE=-1>Airspan provides an innovative, flexible
and cost-effective means to deploy radio in the local access network. The
system uses revolutionary "DS-CDMA" radio technology to enable the support
of fully transparent 64kbit/s based services. Designed to provide wide-area
coverage, the system operates over the distances up 25 km (Line of Sight).
Airspan may be deployed in a number of ways. Islands of coverage can be
migrated to full "Cellular Style" deployment, reusing frequencies on a
N=1 to N=3 basis depending on antenna and cell configuration. </FONT></FONT>
<P><FONT FACE="Arial"><FONT SIZE=-1><B>System Architecture</B> </FONT></FONT>
<P><FONT FACE="Arial"><FONT SIZE=-1>The Airspan architecture consists of
a number of sub-systems. At the heart of the system is the "Central Terminal."
The Central Terminal is Airspan's radio base station and provides radio
borne access circuits for the "Subscriber Terminals." Different Subscriber
Terminals are deployed at the end-user's location depending on the type
of service to be provided. Four types of ST are available; Single, Dual
and Four Line Analogue Telephony, 128kbit/s Digital Leased Line, Basic
Rate ISDN and the Multiline Analogue Telephony. </FONT></FONT>
<P><FONT FACE="Arial"><FONT SIZE=-1>Subscriber Terminals consist of a compact,
unobtrusive radio unit which is mounted externally at the subscribers'
premises, a drop cable which connects the radio unit to an internal power
source and the network termination unit, or master socket, that supports
standard fixed network phones, faxes and modems. The radio unit includes
an integrated flat-plate antenna and can be installed/ maintained without
any specialist radio knowledge. </FONT></FONT>
<P><FONT FACE="Arial"><FONT SIZE=-1>The Access Concentrator is the sub-system
used to provide flexible interfacing to the host switching network. Access
Interfaces supported include 2-Wire VF, 2Mbit/s G.703 with CAS in TS16,
DASS2, DSS1, V5.1 or V5.2 signalling schemes. Airspan can be managed using
a combination of craft terminals (known as site controllers), Sitespan&trade;
and/or a TMN (M.3010) Element Manager (SMP), which can provide a full "Q3"
interface to higher layers of management. </FONT></FONT>
<P><FONT FACE="Arial"><FONT SIZE=-1><B>System Benefits</B> </FONT></FONT>
<P><FONT FACE="Arial"><FONT SIZE=-1>Airspan may be deployed either stand-alone
or in conjunction with other access technologies. </FONT></FONT>
<P><FONT FACE="Arial"><FONT SIZE=-1>The system is designed to: </FONT></FONT>
<UL>
<LI>
<FONT FACE="Arial"><FONT SIZE=-1>Minimise initial capital outlay </FONT></FONT></LI>
<LI>
<FONT FACE="Arial"><FONT SIZE=-1>Reduce cost of deploying longer or difficult
loops </FONT></FONT></LI>
<LI>
<FONT FACE="Arial"><FONT SIZE=-1>Construct networks rapidly </FONT></FONT></LI>
<LI>
<FONT FACE="Arial"><FONT SIZE=-1>Support "re-deployment" of service when
copper or fibre systems arrive reduce operating costs </FONT></FONT></LI>
<LI>
<FONT FACE="Arial"><FONT SIZE=-1>Provide "overlay" premium service networks </FONT></FONT></LI>
<LI>
<FONT FACE="Arial"><FONT SIZE=-1>Provide "Fixed Network" grades of service
at "copper" tariffs </FONT></FONT></LI>
</UL>
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