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Fiber Optic Repeater |
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WCDMA2100MHz FOR |
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Description：
Helios GSM900MHz Fiber Optic Repeater system is designed to solveproblems 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 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.
Features：
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Comply with relevant regulation spectrum usage;
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Aluminum-alloy casing with IP65 protection and compact design, cool system without fan;
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ALC and AGC to ensure stable operation;
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Easy to install on wall or pole;
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One Donor Unit can support up to 4 Remote Units to maximize utilization of fiber optic cable;
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Max transmission distance between Donor Unit and Remote Unit is 20KM;
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Adopting WDM (Wavelength Division Multiplexing) module to realize long distance transmission;
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Adopting filter with highly selectivity and low insertion loss eliminates interference between uplink and downlink;
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2 RS-232 ports provide links to laptop for local test or to built-in wireless modem for communication with the NMS;
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High gain linear power amplifier technique with reliable performance.
Application：
To expand signal coverage of fill signal blind area where GSM signal is weak or unavailable.
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Outdoor: Airports, Tourism Regions, Golf Courses, Tunnels, Factories, Mining Districts, Villages nd so on.
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Indoor: Hotels, Exhibition Centers, Basements, Shopping Malls, Offices, Packing Lots and so on.
Technical Specification：
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Frequency Range |
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1920-1980MHz/2110-2170MHz (Customized) |
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Transmission Distance |
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Max. 20KM |
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Max Input Power |
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+10dBm |
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Downlink Output Power |
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Min. 37dBm – 46dBm (5W – 40W) |
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Gain |
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Min. 65dB |
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AGC Control Range |
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Min. 20dB (+/-2dB) |
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Spurious Emissions 9KHz-1GHz |
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Max. -36dBm |
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Spurious Emissions 1KHz-12.75GHz |
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Max. -30dBm |
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RF Connector |
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N-Type Female |
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I/O Impedance |
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50ohm |
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Group Time Delay |
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5uS |
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Temperature Range |
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-30℃ to +55℃ |
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Relative Humidity |
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Max 95% |
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Power Supply |
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DC -48V or AC220V |
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NMS Monitor Function |
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Real-time alarm for door Status, Temperature, Power Supply, VSWR, Output Power, Gain, Uplink ATT, Downlink ATT and so on. |
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Remote Control Module |
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RS232 + Modem |
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Approved Standard |
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ETSI EN 300 609-4
ETSI EN 300 489-1
ETSI EN 60950 |
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System Diagram：
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