Single Band
Dual Band
Full Band

* RF Repeater

Description
SIEMENS® Fiber Optic Repeaters (FOR) system is designed to solve problems of weak mobile signal in the place that is far away from the Base Station (BTS) and has fiber optic cable network underground. The Fiber Optic Repeater (FOR) system consists of two parts: Donor Unit and Remote Unit. The Donor Unit captures the BTS signal via direct coupler closed to BTS, the converts it into optic signal and transmits the amplified signal to the Remote Unit via fiber optic cable. The Remote Unit will reconvert the optic signal into RF signal and provide signal to the areas where network coverage is inadequate. And the mobile signal is also amplified and retransmitted to the BTS via the opposite direction.

As per the method of receiving BTS signal by the Donor Unit, two types of FOR are available:

Cable-Access FOR: the receive BTS signal via a direct coupler closed to the BTS (recommended);
Wireless-Access FOR: to receive BTS signal via a Donor Antenna (applicable when no fiber optic cable connecting to the BTS); can be sorted into 2 sub-categories: Band-Selective and Channel-Selective.

Features

Comply with relevant regulation spectrum usage
Aluminum-alloy casing with IP65 protection and compact design, cool system without fan
ALC and AGC to ensure stable operation
Option channel Selective 1, 2, 4, 6, 8 for Wireless Access application
Easy to install on wall or pole
One Donor Unit can support up to 4 Remote Units to maximize utilization of fiber optic cable
Max transmission distance between Donor Unit and Remote Unit is 20KM
Adopting WDM (Wavelength Division Multiplexing) module to realize long distance transmission
Adopting filter with highly selectivity and low insertion loss eliminates interference between uplink and downlink
2 RS-232 or RJ45 ports provide links to laptop for local test or to built-in wireless modem for communication with the NMS
Built-in wireless modem (Option) for remote monitoring by SMS, GPRS or TCP/IP.
Details repeater parameters and status can be monitoring by built-in web interface, such as RSSI, temperature, output power level, gain, ATT, return loss, VSWR etc.
Support upgrading firmware remotely by GPRS.
High gain linear power amplifier technique with reliable performance

Application
To expand signal coverage of fill signal blind area where signal is weak or unavailable.

Outdoor: Airports, Tourism Regions, Golf Courses, Tunnels, Factories, Mining Districts, Villages, etc..
Indoor: Hotels, Exhibition Centers, Basements, Shopping Malls, Offices, Packing Lots, etc.

The FOR is mainly applicable to such case:

Underground fiber optic cable network already exists beneath the area to be covered;
There is huge obstructive terrain between the BTS and the area to be covered;
The distance between the BTS and the area to be covered is 20KM around

And can meet the requirement of antenna isolation to avoid self-oscillation.

* RF Repeater

Description
With the development of mobile communication technology, more and more new communication technologies (like 3G) are adopted nowadays. Hence, telecom operators have to handle multi-system simultaneity and provide multi-system (2G/3G) services in coverage area simultaneity, which causes difficult and trouble on equipments installation and transmission.

SIEMENS® Dual Band Fiber Optic Repeater System is a innovation technology, and is designed to simultaneity solve problem of 2G&3G dual band weak mobile signal in the place that is far away from the 2G&3G Base Stations (BTS) and has fiber optic cable network available.

SIEMENS® Dual Band Fiber Optic Repeater System consists of 2 parts as follows:

Fiber DAS Donor HUB Unit: to captures the respective 2G&3G BTS signal via direct coupler closed to respective 2G&3G BTS, then converts these signals into optic signal and transmits the both amplified DCS&UMTS signal simultaneity to the Remote Unit via a single fiber optic cable.
Remote Unit: will reconvert the optic signals into respective 2G&3G RF signal and transmits the amplified signal to the areas where network coverage is inadequate.

Features

In-built Fiber Optic Transceiver Module complies with 800 - 2200MHz ultra-wideband spectrum usage to simultaneity realizes long distance transmission for 2G&3G simultaneity by a single fiber cable.
Fiber DAS Donor Unit adopts 19” (2U Height) standard casing enclosure which is very easy to be installed into 19” cabinet in BTS room.
Fiber DAS Remote Unit and all Remote Boosters all adopt casing enclosure with IP55 protection and compact design, cool system without fan.
In-built individual AGC & ALC function for 2G&3G be able to ensure easy setting and no cause interference to Donor BTS.
High gain linear wide-band power amplifier technique with reliable performance, support multi-carriers working.
Output power +37dBm - +43dBm for option
2 RS232 or RJ45 ports provide links to laptop for local setting and monitoring by built-in web interface.
Built-in wireless modem (Option) for remote monitoring by SMS, GPRS or TCP/IP.
In-built FSK function to ensure control/monitor Remote Unit from Donor Unit.
Details repeater parameters and status can be monitoring by built-in web interface, such as RSSI, temperature, output power level, gain, ATT, return loss, VSWR etc.
Support upgrading firmware remotely by GPRS

Application
To expand signal coverage of fill signal blind area where signal is weak or unavailable.

Outdoor: Airports, Tourism Regions, Golf Courses, Tunnels, Factories, Mining Districts, Villages etc.
Indoor: Hotels, Exhibition Centers, Basements, Shopping Malls, Offices, Parking Lots etc.

The Dual Band Fiber Optic Repeater is mainly applicable to such case:

The area to be covered requires to improve signal coverage of triplex wireless system;
Underground fiber optic cable network already exists beneath the area to be covered;
There are just one fiber optic cable available for transmission between BTS and coverage area;
There is huge obstructive terrain between the BTS and the area to be covered;
The distance between the BTS and the area to be covered is 20KM around