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Cable Access Fiber Optical signal repeater for mobile phone , GSM 900MHz

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Cable Access Fiber Optical signal repeater for mobile phone , GSM 900MHz

China Cable Access Fiber Optical signal repeater for mobile phone , GSM 900MHz supplier
Cable Access Fiber Optical signal repeater for mobile phone , GSM 900MHz supplier Cable Access Fiber Optical signal repeater for mobile phone , GSM 900MHz supplier Cable Access Fiber Optical signal repeater for mobile phone , GSM 900MHz supplier

Large Image :  Cable Access Fiber Optical signal repeater for mobile phone , GSM 900MHz

Product Details:

Place of Origin: Shenzhen,China
Brand Name: GREETWIN
Certification: SGS, ISO9001
Model Number: GW-36FORG

Payment & Shipping Terms:

Minimum Order Quantity: 1pcs
Price: Negotiable
Packaging Details: Carton with PE Foam
Delivery Time: 3 Working Days After Received Payment
Payment Terms: T/T, L/C, Western Union, MoneyGram
Supply Ability: 5000pcs per Month
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Detailed Product Description
Features: Low Power Consumption Product Name:: Cable-Access Fiber Optical Repeater For GSM900MHz
Advantange: High Linearity PA, High System Gain Power Supply Dimension: 530mm*310mm*190mm
Output Power: 36W Application: Hotels, Exhibition Centers, Basements
Bandwidth: 25MHz Power Supply: AC220V±60V, 45~55Hz

 

Cable Access Fiber Optical signal repeater for mobile phone , GSM 900MHz

 

Description:

 

Greetwin Fiber Optic Repeaters system is designed to solve problems of weak mobile signal, which is much cheaper than setup a new Base Station (BTS). Main operation of RF Repeaters system: For the down link, signals from BTS is fed to Master Unit(MU), the MU then convert RF signal to laser signal then feed to fiber to transmit to Remote Unit(RU). RU then convert laser signal to RF signal, and use Power Amplifier to amplify to high power to IBS or coverage antenna. For the up link, Is a reverse process, signals from user mobile is fed to MU’s MS port. Via duplexer, the signal is amplified by low noise amplifier to improve signal strength. Then the signals is fed to RF fiber optical module then converted to laser signals, then the laser signal is transmit to MU, the laser signal from RU is convert to RF signal by RF optical transceiver. Then the RF signals are amplified to more strength signals fed to BTS.

 

The Fiber Optic Repeater (FOR) is designed to solve problems of weak mobile signal in such place: Far away from the BTS (Base Transceiver Station) and has fiber optic cable network underground.
The whole FOR system consists of two parts: Donor Unit and Remote Unit. They transparently convey and amplify the wireless signal between the BTS (Base Transceiver Station) and mobiles via fiber optic cables.

The Donor unit captures the BTS signal via a direct coupler closed to the BTS (or via open air RF transmission through the Donor Antenna), then converts it into optic signal and transmits the amplified signal to the Remote Unit via fiber optic cables. The Remote Unit will reconvert the optic signal into RF signal and provide the 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: To 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:

 

 

1.  High level, high availability, convenient for maintain;

2.  Internal adopt intelligent monitoring, is convenient to locate the faults for maintain;

3.  Low power consumption, excellent heat dissipation;

4.  High linearity PA, high system gain;

5.  Local and remote monitoring (optional) with automatic fault alarm &remote control;

6.  Compact size, flexible for installation and relocation;

7.  Weatherproof design for all-weather installation;

8.  One MOU can support Max 8 ROUs, Save cost and ease installation.

 

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 20 km around.

 

In comparison with RFR (RF repeater) and FSR (frequency shift repeater), the FOR has the following benefits and disadvantages:

Pro:
No more self-oscillation and easy to choose installation location;
For Cable-Access type, pure BTS signal picked up by the Donor Unit will greatly reduce the signal noise;
The Remote Unit can be installed out of the BTS coverage;
A full 360-degree coverage can be realized;
No need to occupy frequency resource as the link frequency.

Con:
· The total cost of equipment is higher;
· A fiber optical connection between the Donor Unit and Remote Unit is required.

Application:
To expand signal coverage or fill signal blind area where signal is weak or unavailable.
· Outdoor: Airports, tourism regions, golf courses, tunnels, factories, mining districts, villages, highways
· Indoor: Hotels, exhibition centers, basements, shopping malls, offices, parking lots.

 

Data Sheet:

 

Master Unit(MU) Technical Specification:

 

Items Testing Condition Technical Specification Memo
Downlink Uplink  
Frequency Range Working in-band 890-915MHz 935-960MHz  
Bandwidth Working in-band 25MHz  
Output Power Working in-band - 0dBm  
Max RF Input level Working in-band -30dBm -  
Min RF Input level Working in-band -110dBm -  
Max RF input without damage Working in-band 10dBm -  
Noise Figure Working in-band ≤5dB -  
VSWR Working in-band ≤1.5  
Time Delay Working in-band ≤12.0μs  
Spurious Emission 9kHz-1GHz BW:30KHz ≤-36 ≤-36  
1GHz-12.75GHz BW:30KHz ≤-30 ≤-30  
Connector   N-Female  
Optical Specifications
Optical Output Power   -8dBm±2dB -  
Optical Max Input power     +4dBm  
Optical Min Input power     +0dBm  
Optical Input damage level     +10dBm  
Optical length   DL: 1310nm, UL: 1550nm  
Optical Loss   ≤10dB /Includes the loss of the optical splitter  
Optical Connector   FC/APC(WDM, one core)  
Nos Of Optical Ports   1-4  
Power Supply and Mechanical Specifications
Power Supply   AC220V±60V,45~55Hz  
Dimension   530mm*310mm*190mm  
Weight   19kg  
Max. Power Consumption   150W  
Operating Temperature   -5~+45℃  
Operating Humidity   ≤85%  
Environmental Class   IP65  
RF Connector   N-Female, 50ohm  
MTBF   ≥50000 hours  
Monitor Interface   Local Monitor: Remote Monitor: RS232 ,GSM/UMTS MODEM Option
Alarm Type   No Power, Over Temperature, RU Failed  

 

 

Remote Unit Technical Specification:

 

Items Testing Condition Technical Specification  
Downlink Uplink  
Frequency Range Working in-band 890-915MHz 935-960MHz  
Bandwidth Working in-band 25MHz  
Output Power (Max.) Working in-band 36±2dBm -  
Max Input without damage Working in-band -- +10dBm  
Max Input RF level Working in-band -- -30dBm  
Min Input RF level Working in-band -- -110dBm  
Noise Figure Working in-band -- ≤5dB  
Gain Adjustable Range/Step Working in-band ≥25dB/1dB  
Gain Adjustable Error Working in-band Gain adjustable range is 0~20dB, error≤1dB; ≥21dB, error≤1.5dB  
Ripple Working in-band ≤3dB in bandwidth  
ALC Working in-band When adding ≤10dB at max. Output level, output variation ≤±2dB, When adding >10dB, output variation ≤±2dB or be off.  
VSWR Working in-band ≤1.5  
Time Delay Working in-band ≤12.0μs  
Spurious Emission 9kHz-1GHz BW:30KHz ≤-36 ≤-36  
1GHz-12.75GHz BW:30KHz ≤-30 ≤-30  
Optical Specifications
Optical Output Power   0~3dBm  
Optical length   DL: 1310nm, UL: 1550nm  
Optical Loss   ≤10dB /Includes the loss of the optical splitter  
Optical Connector   FC/APC(WDM, one core)  
Optical Max input power   +4dBm  
Optical Min input power   +0dBm  
Optical input power without damage   +10dBm  
Power Supply and Mechanical Specifications
Power Supply   AC220V±60V,45~55Hz  
Dimension   530mm*310mm*190mm  
Weight   19kg  
Max. Power Consumption   200W  
Operating Temperature   -25~+55℃  
Operating Humidity   ≤95%  
Environmental Class   IP65  
RF Connector   N-Female, 50ohm  
MTBF   ≥50000 hours  
Monitor Interface   Local Monitor: Remote Monitor: RS232 ,GSM/UMTS MODEM  
Alarm Type   No Power, PA Failure, VSWR, Over Power, Over Temperature  

 

 

MOU+ROU Whole System Technical Specification:

 

Items Testing Condition Technical Specification Memo
uplink downlink
Frequency Range Working in-band 890-915MHz 935-960MHz  
Bandwidth Working in-band 25MHz  
Output Power (Max.) Working in-band 0dBm +36±2dBm  
ALC(dB) Input add 10dB △Po≤±2  
Max Gain Working in-band 90±3dB 90±3dB @10dB optic path loss
Gain Adjustable Range(dB) Working in-band ≥30  

 

Gain Adjustable Linear(dB)

10dB ±1.0  
20dB ±1.0  
30dB ±1.5  
Ripple in Band(dB) Effective Bandwidth ≤3  
Max.input level Continue 1min -10 dBm  
Delay(us) Working in-band ≤12  
Noise Figure(dB) Working in-band ≤5(Max.gain)  
Spurious Emission 9kHz~1GHz ≤-36dBm/100kHz  
1GHz~12.75GHz ≤-30dBm/1MHz  
Port VSWR BS Port ≤1.5  
MS Port ≤1.5  

 

 

Installation


Installation Location Choice Principle:

1. Installed in the irrelevant personnel not easy contact place; And easy to the power supply and decorate place;

2. Have cable feeder,it’s convenient opening fiber connection;

3. The installation location should avoid heat source and damp;

4. The installation location should be well ventilated.Need to vertical hang it on a wall or a mast, in order to ensure that the heat dissipation.When hanging, need to consider from the top≥ 50 cm and distance from the bottom ≥100 cm ;

 

Optical Fiber Connection

Optical fiber connectors should adopt type of FC/PC, in general it with black protection cover and corresponding to light adapter.Please with instruments cleaning detergents to spray when connecting. In order to avoid besmirch influence light way transmission, increase the light path insertion loss.Please follow the image when joining: plug the bolt aim at key slot (as per image),tighten up after plug: can not too tight or too loose. Otherwise, it will affect the loss of the optical connector.

 

P.S:The optical cable don’t crimp, need cover by good protection.

 

Cable Access Fiber Optical signal repeater for mobile phone , GSM 900MHz

Contact Details
Shenzhen Greetwin Technology Co.,Limited

Contact Person: Gavin

Tel: +8615019243082

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