Confidential & Proprietary 9/17
2.1
Purpose
Alliance_N2ROU 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.
The Alliance_N2ROU system supports communication standards and public interface protocols
in worldwide use.
Frequencies: VHF,UHF, 700MHz, 800MHz,850MHz ,1900MHz,2100MHz, etc.
Voice protocols: AMPS,TDMA, CDMA,GSM,IDEN, etc.
Data protocols: EDGE,GPRS,WCDMA,CDMA2000,LTE, etc.
2.2
Alliance_N2ROU
N2ROU receives TX optical signals from ODU or OEU and converts them into RF signals. The
converted RF signals are amplified through High Power Amp in a corresponding N2RDU,
combined with Multiplexer module and then radiated to the antenna port.
When receiving RX signals through the antenna port, this unit filters out-of-band signals in a
corresponding N2RDU and sends the results to Remote Optic Module to make electronic-
optical conversion of them. After converted, the signals are sent to a upper device of ODU or
OEU. N2ROU can be equipped with up to four N2RDUs (Remote Drive Unit)
