User's Manual

Confidential & Proprietary 11/46
2.1 Purpose
Alliance_N20 is a coverage system for in-building services delivering voice and data in high quality and
for seamlessly.
As a distributed antenna system, it provides analog and digital phone systems that are served in multiple
bands through one antenna.
The system covers general public institutions and private facilities.
 Shopping malls
 Hotels
 Campus areas
 Airports
 Clinics
 Subways
 Multi-use stadiums, convention centers, etc.
The system helps improve in-building radio environments in poor condition and make better poor RSSI
and Ec/Io. By providing communication services at every corner of buildings, the system enables users to
make a call at any site of buildings.
The system uses both analog (AMPS) and digital (TDMA, CDMA and WCDMA) methods.
Alliance_N20 system supports communication standards and public interface protocols in worldwide
use.
 Frequencies: 700MHz , 850MHz , 1900MHz , 2100MHz etc.
 Voice protocols: AMPS,TDMA, CDMA,GSM,IDEN, etc.
 Data protocols: EDGE,GPRS,WCDMA,CDMA2000,Paging, LTE etc.
Alliance_N20 is in modular structure per frequency. To provide desired frequency in a building, all you
need to do is to insert a corresponding frequency module into each unit. As it delivers multiple signals
with one optical cable, the system, in one-body type, does not require additional facilities whenever
new frequency is added.
The system is featured with the following:
 Flexibiltiy & Scalabiltiy
 Support fiber-optic ports up to 60(If you add a OEU)
 Clustering multiple-buildings (campus) as one coverage
 Modular structures
 Modular frequency upgrade
 Plug-in type module
 Multi-Band, Multi Operator