Programmable 2.5GHz RF Over Fiber
Key features: ❖ Next Generation RFoF modules with significant performances improvement.
❖ Supports up to 2.5 GHz.
❖ Better linearity, excellent gain flatness, and Tx, Rx and Link gain control.
❖ Noise Figure down to 6 dB with LNA with MDS ~168 dB/Hz for very low incoming signals.
❖ Internal microcontroller allows RF and Optical control enabled by software.
❖ End-to-end Diagnostics reduces installation and maintenance time, enabled by software.
❖ Gain variation S21(fo) of ±1 dB for 90 °C variation, utilizing special algorithm.
❖ Remote Management by GUI installed on PC.
❖ Impedances of 50 Ohms and 75 Ohm.
Applications:
❖ Remote Antennas Communication
❖ Satcom
❖ 4G LTE
❖ Broadcast
❖ Distributed Antenna
❖ Radio Telescopes
❖ GPS (optional)
Configurations:
❖ Outdoor enclosure (unidirectional/bi-directional)
❖ 1U Generic enclosure (4 units)
❖ 1U Removable panel enclosure (4/8 units)
❖ Bias-T for GPS applications (optional)
RFOptic presents its new innovative controllable RFoF product line.
RFOptic's palm size analog RFoF modules are used to convert RF signals to optical signals to carry over long distances. The Tx unit using an optical transmitter, converts RF to Optical signal and the Rx unit converts back to RF signal. The two units are connected through customer’s single mode fiber.
RFOptic's RF over Fiber modules (RFoF) are suitable for telecommunications, satellite, radio telescopes, distribution antennas, broadcasting audio and video, timing synchronization. For example, point-to-point antennas can be connected from several meters to many kilometers away from the control room by fiber cables; Base stations can be connected through fiber to remote sector antennas; Satellite antennas can be connected through fiber cable to remote sites by RF over Fiber solutions.
Both the Tx and Rx units includes LNAs and variable attenuators that enable customer to adjust the Noise Figure, Input P1dB, IP3 with wide dynamic range values. The LNA can be operated through the RFoF Software allowing RF input power in the range of -100 dBm/1MHz for wideband applications, with low Noise Figure of 6 dB. The RFoF link has excellent gain flatness with 0.5dB gain tracking between different links. For special applications requiring temperature stability operation, a unique algorithm supporting 0.5 dB over 1000C has been developed. The DC power of the RFoF modules is flexible from 5 to 12 Volts.
A user-friendly RFoF software enables adjustment of the RF and Optical parameters, such as link gain, Noise Figure, P1dB, Optical power, LED indication and module information, either locally or remotely.
Furthermore, the RFoF link has full diagnostic capability including Tx, Rx and complete link test (Optical and RF). These features save cost of test equipment and provide real time diagnostic of any deployed link.
Programmable 2.5 GHz RFoF typical specifications
Electrical
Unit
Specification
Specification
LNA “OFF”
LNA “ON”
Frequency Range
MHz
0.5-2500
0.5-2500
Adjustable Link Gain (nominal value) [1]
dB
12
42
Attenuator 31 dB (Tx, Rx) [2]
dB
0.5
0.5
Gain Flatness
dB
±1.4
±1.4
Input P1 dB [3]
dBm
-3
-33
Noise Figure [3]
dB
25
6.5
SFDR [3]
dB/Hz2/3
104
100
Gain Flatness any 36 MHz
dB
±0.25
±0.25
Uncorrected gain variation over Temperature
dB
±3.5
±3.5
Corrected gain variation over temperature [4]
dB
±1
±1
Corrected gain tracking between RFoF links [5]
dB
±0.5
±0.5
Maximum Input No damage
dBm
20
20
Spurious
dBm
-100
-100
VSWR Input/Output
dB
1.7:1
1.7:1
Input/Output Impedance [6]
Ohm
50
50
Optical and Electrical
Current consumption of Tx unit (at 5VDC)
mA
260
385
Current consumption of Rx unit (at 5VDC)
mA
225
225
Laser diode wavelength
um
1.31 or 1.55
1.31 or 1.55
Optical Power in the fiber
mw
2.3 ±0.5
2.3 ±0.5
LED status indicators (Tx/Rx)
-
RGB
RGB
Mechanical and Environmental Parameters
Operating temperature
°C
-20 to 70
-20 to 70
Storage temperature
°C
-40 to 85
-40 to 85
EMC and Safety [7]
-
CE & FCC
CE and FCC
Parameter
RFoF2.5GHz
RFoF-2.5GHz-1U
RFoF-2.5GHz Outdoor
Dimensions (mm)
70(W)*70(L)*22(H)
445(W)* 350(L)*44(H)
280(W)*220(L)*85(H)
RF Input/Output connector
SMA
SMA
N Type
Optical Connector
FC/APC
FC/APC
Radiall OPUS.117.200.1420
Power Connector
PIN 3.5*1.3*9 mm
HP Socket
Circular male 5 pins
Power
5-12 VDC
110/220 VAC
5-12 VDC
Data Connector
Micro USB2
USB2
Circular male 7 pins
[1] LNA ‘ON’or ‘OFF’is selected by RFOptic manufacturing, or by using the RFoF User Software.
[2] ‘No Attenuation’is the default for Tx and Rx units. Attenuation values can be selected by the User Software.
[3] Noise Figure, Input P1 dB, Input IP3 and SFDR measured at 1.5 GHz, can be selected by ‘LNA Off/ON’and Tx Attenuator.
[4] Using internal temperature compensation algorithm selected by the User Software.
[5] Using the Tx and/or Rx Attenuators.
[6] 75 Ohm is optional with similar VSWR, by using SMA/BNC adaptor.
[7] Safety EN60950-1:2006(2nd)+A11:2009+A1:2010+A12:2011+A2:2013; EMC: ETSI EN 300 386 v1.6.1(2012-04)and FCC CFR-47 part 15 Subpart B.
Mechanical Outline Drawing: Programmable 2.5 GHz RFoF Tx and Rx units
Ordering Information:
RFoF-2.5GHz-1310-Prog. 3.0 GHz Transceiver 1310nm, FC/APC, Programmable
RFoF-2.5GHz-1550-Prog. 3.0 GHz Transceiver 1550nm, FC/APC, Programmable
RFoF- AC-DC-Programmable Two 220/110 AC/5VDC Converters for Programmable RFoF
RFoF Outdoor LF Outdoor Enclosure for RFoF, with Mux, capable of holding Low Freq. Tx and Rx units for Uni or Bidirectional applications.
RFoF 1U Generic Indoor 19" 1U Enclosure for RFoF, with 2 power supplies and HUB, capable of holding Low Freq. Tx or Rx units for Uni- or Bidirectional applications.