User's Manual

Confidential & Proprietary 11/87
2.1 General overview
SMDR-NH124 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.
z Shopping malls
z Hotels
z Campus areas
z Airports
z Clinics
z Subways
z 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.
The SMDR-NH124 system supports communication standards and public interface protocols in
worldwide use.
z Frequencies: VHF,UHF, 700MHz, 800MHz,850MHz 900MHz,1900MHz,2100MHz, etc.
z Voice protocols: AMPS,TDMA, CDMA,GSM,IDEN, etc.
z Data protocols: EDGE,GPRS,WCDMA,CDMA2000,Paging, etc.
SMDR-NH124 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:
z Flexibiltiy & Scalabiltiy
 Support fiber-optic ports up to 39
 Clustering multiple-buildings (campus) as one coverage
z Modular structures
 Modular frequency upgrade
 Plug-in type module
z Multi-Band, Multi Operator