F-CELLULAR Fiber Optic Tranciever for cellular frequencies : GSM, PCS, and CDMA Base Station Links

The F-CELLULAR systems are for linear fiber optic transceivers for cellular over fiber applications specifically designed for high performance optical links between cellular base stations (BTSs), links between BTSs and microcells, or general radio over fiber (RF over Fiber) applications. We offer equipment for CDMA over fiber, GSM over fiber, WiMAX over fiber as well as more modern standards such as 3GPP over fiber. This is useful for extending the range of a wireless cellular network. When connected to a wireless antenna an F-CELLULAR unit amplifies the incoming RF signal, converts it to an optical signal, transports it over a fiber optic cable to a second F-CELLULAR unit, and then reconverts the signal back to an RF carrier for rebroadcast over a second antenna. This system can be used to extend coverage of a wireless cellular network to an area up to 120 km from the source. Our F-CELLULAR units are a low noise, radio frequency fiber optic transceiver for cellular over fiber applications. Our units are designed for applications such as CDMA over fiber, GSM over fiber, and other cellular over fiber applications. RS-232 control signals can also be carried over the same optical fiber. Our optics offer high linearity and superior performance over a wide range of operating temperatures. Operation over a single fiber is enabled through the incorporation of a WDM system at 1550 and 1310 nanometers. If you need a solution for RF over fiber contact one of our sales representatives today. This is a constantly changing field; our team of engineers are better able to help you find a solution. We can help you develop a solution to your particular application.

Product Features

• AGC function to realize auto gain compensation for optical transmission.
• Transparent data transmission channel for data exchange.
• Wide-band features for multi-system work.
• Perfect optical and RF features.
Aplications
• GSM optical repeater GSM optical repeater ,GSM over fiber
• CDMA optical repeater ,CDMA over fiber
• WCDMA optical repeater, WCDMA over fiber
• RF over fibre for cellular coverage.
• Cell phone and 2-way radio over fiber
• Radio over fiber
Highlights
1. Simplicity for indoor coverage
2. Easy for 6-carrier design
3. Better noise performance to reduce affect to BTS
4. Convenient management
5. Easy to use

Radio over Fiber (RoF) refers to a technology whereby light is modulated by a radio signal and transmitted over an optical fiber link to facilitate wireless access. Although radio transmission over fiber is used for multiple purposes, such as in cable television (CATV) networks and in satellite base stations, the term RoF is usually applied when this is done for wireless access.

F-CELLULAR Fiber Optic Tranciever for cellular frequencies : GSM, PCS, and CDMA Base Station Links

Specifications

MODELS                                                   2FO  - 2 fiber RF transceiver
                                                                  1FO  - Bi directional RF over single fiber transceiver
Optical Wavelength                                    1310±20nm (uplink)  1550±20nm (downlink)
Optical Output Power                                 4dBm±2dBm
Optical input Power                                    -16~6dBm
Transmit No Optical Alarm                         ≤-3dBm
Receive No Optical Alarm                          ≤-16dBm
WDM                                                          Built-in
Optical Interface                                         SC/APC SC/PC FC/APC FC PC ST/PC ST/APC
Tx Optical Power                                       Rang-3~6dBm, Error±2dB
Rx Optical Power                                       Rang-16~6dBm, Error±2dB
Frequency Bands                                       50Mhz~ 3000MHz 

Frequency Ranges                                    50Mhz    -   3000Mhz  
                                                                  50MHZ   -   800Mhz
                                                                  50Mhz   -    1000Mhz
                                                                  0800MHz - 1000MHz
                                                                  1400MHz - 1600MHz
                                                                  1700MHz - 1900MHz                                                       
                                                                  1800MHz - 2000MHz                                                         
                                                                  2200MHz - 2500MHz 
                                                                  2000Mhz -3000Mhz 
RF directivity 
                                                                  @0800 ~ 1000 MHz = 50-60 dBc
                                                                  @1400 ~ 1600 MHz = 45-50 dBc
                                                                  @1700 ~ 1900 MHz = 40-45 dBc
                                                                  @1800 ~ 2000 MHz = 40-45 dBc
                                                                  @2200 ~ 2500 MHz = 35-40 dBc 
Response flatness 
(within 2000 MHz BW)                             Output noise floor
                                                                  @ 0800 ~ 1000 MHz = -140 dBm/Hz
                                                                  @ 1400 ~ 1600 MHz = -137 dBm/Hz
                                                                  @ 1700 ~ 1900 MHz = -135 dBm/Hz
                                                                  @ 1800 ~ 2000 MHz = -135 dBm/Hz
                                                                  @ 2200 ~ 2500 MHz = -133 dBm/Hz 

                                                                    

Max. Gain                                                  15±2dB
Link Gain                                                   0 ±2dB(Uplink, Downlink)
Gain Adjustment Range (ATT)                  Range≥30dB,Step 1dB, Error±1.5dB
RF Input Power Detection                         Range-255dBmError±2dBMaster
Flatness                                                    ≤1dB
VSWR                                                       ≤1.4
IM3                                                            ≤-60dBc(0dBm/2CH)
Noise                                                         ≤-135dBm/Hz0dB for RF gain0dB for optical decrease
Isolation                                                    ≥60dB
Emission                                                   ≤-60dBm/100KHz (100MHz ~3GHz)
Delay                                                          ≤60ns
Operating Temperature                             -20~65
Operating Current                                     ≤200mA(+12V Power Supply)
Power Supply                                            DC+6V~+15V, Power dissipation lower than 3.5W
Communication Interface                          Supporting dual-channel communications for RS232
Dimension                                                 127*76.4*27.5mm, error±0.5mm