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fiber optic analog transmitter and receiver module

1. 11 SYNCO Resistors l Curent L TR 3 a Switches 6 5 Frequency of Operation The frequency of oscillation fo is determined by the external timing capacitor C across Pin 5 and 6 and by the timing Join the Technical Community Today http www pantechsolutions net resistor R connected to either Pin 7 or 8 The frequency is given as fo 1 RC Hz And can be adjusted by varying either R or C The recommended values of R for a given frequency range as shown in Figure 5 Temperature stability is optimum for 4k_ lt R lt 200k_ Recommended values of C are from 1000pF to 100MF 6 6 System Description The XR 2206 is comprised of four functional blocks a voltage controlled oscillator VCO an analog multiplier and sine shaper a unity gain buffer amplifier and a set of current switches The VCO produces an output frequency proportional to an input current which is set by a resistor from the timing terminals to ground With two timing pins two discrete output frequencies can be independently produced for FSK generation applications by using the FSK input control pin This input controls the current switches which select one of the timing resistor currents and routes it to the VCO Join the Technical Community Today http www pantechsolutions net 6 7 APPLICATIONS gt Waveform Generation gt Sweep Generation gt AM FM Generation gt V F Conversion gt FSK Generation Phase Locked Loops VCO
2. Join the Technical Community Today http www pantechsolutions net 7 CIRCUIT DIAGRAM SINE WAVE GENERATOR EXTERNAL INPUT SIGNAL Join the Technical Community Today www pantechsolutions net http De LIMITER cig 10MF 63V Power Supply www pantechsolutions net Join the Technical Community Today http C23 0 1MF D Join the Technical Community Today http www pantechsolutions net Pantech solutions creates information packed technical documents like this one every month And our website is a rich and trusted resource used by a vibrant online community of more than 1 00 000 members from organization of all shapes and sizes Join the Technical Community Today http www pantechsolutions net What do we sell Our products range from Various Microcontroller development boards DSP Boards FPGA CPLD boards Communication Kits Power electronics Basic electronics Robotics Sensors Electronic components and much more Our goal is to make finding the parts and information you need easier and affordable so you can create awesome projects and training from Basic to Cutting edge technology Join the Technical Community Today http www pantechsolutions net
3. transducer And this electrical signal used in electronic circuits in voice communication After doing all process the electrical signal converting voice signal again using speakers Procedure 1 Connect 15V adapter to both transmitter and receiver module 2 Switch sw1 ON the transmitter Module 3 Connect the Mic on P4 connecter 4 Connect the CRO Probe positive to P6 and negative to P7 Ground 5 Now check the mic pre amplifier output on CRO and vary the Amplitude pot meter min to max range 6 Connect P6 and P8 using patch chord 7 Connect P9 and P10 using patch chord 8 Connect the 1 m Plastic fiber cable between transmitter module LED to receiver module Photo Diode 9 Switch sw1 ON the receiver Module 10 Connect P2 and P4 P5 and P9 in receiver module using patch chord 11 Connect the speaker on P12 connecter in receiver module Join the Technical Community Today http www pantechsolutions net 12 Check the Audio power amplifier output on test point P11 13 Now we get the transmitted voice signal at speaker Result Thus the Voice communication using Fiber Optic Analog Link was done EXPERIMENT 4 Study the Numerical Aperture Measurement Aim To Study the Numerical Aperture of optical plastic fiber cable Apparatus Required 1 Fiber Optics Analog Transmitter Module 01 2 Plastic Fiber cable 1 meter 01 3 Adapter 15V DC 01 Join the Technical Community Today http www pantechsolutions
4. For the typical plastic fiber cable NA 0 5 to 0 6 Tabular Colum Distance Radius Numerical Aperture D in mm R in mm NA Result Thus the Numerical Aperture of plastic fiber cable was calculated EXPERIMENT 5 Study the Coupling Loss of fiber optic analog Communication Aim Join the Technical Community Today http www pantechsolutions net To Study the Coupling Loss Measurement in Fiber Optic System Apparatus Required 1 Fiber Optics Analog Transmitter Module 01 2 Fiber Optics Analog Receiver Module 01 3 Plastic Fiber cable 1 meter 01 4 Plastic Fiber cable 3 meter 01 5 CRO 01 6 Adapter 15V DC 02 7 Patch Chords 06 8 Coupling Setup 01 Coupling Loss In fiber optic system face some losses in communication which losses accrued from material cable length cable bend couple the more no of fiber optic cable splicing the fiber cable etc in coupling loss fiber coupler will act as a loss in that fiber optic system Fiber coupler used for couple two fiber cable During this coupling process some light signal was loss in that fiber optic system which is known as coupling loss Procedure Join the Technical Community Today http www pantechsolutions net 1 Connect 15V adapter to both transmitter and receiver module 2 Switch sw1 ON the transmitter Module CRO and receiver module sw1 3 Set the sine wave output Vin 1 Vpp 2 KHz at P1 4 Connect P1 and P8 P9 and
5. P10 using patch chord 5 Connect the 1 m Plastic fiber cable between transmitter module LED to receiver module Photo Diode 6 Connect P2 and P4 P5 and P6 using patch chord in receiver module 7 Vary the Amplifier pot meter and set output 3 Vpp 8 Note down the analog output on test point P7 9 Now we get the output voltage Vo 10 Replace the Plastic fiber cable 1m into 3m 11 Now note down the analog output on test point P7 and will get output voltage Vo 12 Calculate the Propagation loss a3 for 3m fiber in dB m O3m 10 log Vo2 Vin 13 Calculate the Propagation loss Qim for 1m fiber in dB m Qim A3m Lz L4 L length of 1 meter fiber cable Join the Technical Community Today http www pantechsolutions net L length of 3 meter fiber cable ie Aim O3m 3 5 1 14 Connect one end of 3m fiber cable into transmitter module connect one end of 1m fiber cable into receiver module and insert free ends of 1m and 3m fiber cable into coupling setup as close as possible see Figure 1 Figure 1 Coupling Setup 15 Now note down the analog output on test point P7 and will get output voltage Vo3 16 Calculate the Coupling loss a in dB m a 10 log Vo3 Vin total cable loss Join the Technical Community Today http www pantechsolutions net Total cable loss Qim L2 L1 Qim 3 1 Coupling loss a 10 log Vo3 Vin Qim 3 1 Result Thus the Coupling Loss
6. net 4 Numerical Aperture Setup 01 5 Patch Chords 03 Numerical Aperture In fiber optics the numerical aperture NA of an optical system is a dimensionless number that characterizes the range of angles over which the system can accept or emit light By incorporating index of refraction in its definition NA has the property that it is constant for a beam as it goes from one material to another provided there is no optical power at the interface The exact definition of the term varies slightly between different areas of optics Numerical aperture is commonly used in microscopy to describe the acceptance cone of an objective and hence its light gathering ability and resolution and in fiber optics in which it describes the cone of light accepted into the fiber or exiting it Procedure 1 Connect 15V adapter to fiber optics analog transmitter module 2 Switch sw1 ON Module 3 Connect P1 and P8 test point P9 and P10 test point using patch chord Join the Technical Community Today http www pantechsolutions net 4 Connect the fiber cable one end to Transmitter module another end to Numerical Aperture setup Fig1 Fig 1 5 Numerical Aperture is NA gt Where R radius of circle D distance of cable 6 Note down the readings radius R in different distance D and calculate NA 7 Find out the Average NA in the following table Join the Technical Community Today http www pantechsolutions net 8
7. t sls fA O u 1G Join the Technical Community Today http www pantechsolutions net 5 EXPERIMENTAL SECTION 5 1 LIST OF EXPERIMENTS 1 Experiment 1 To Study the Fiber Optics Analog Link using Internal Function Generator 2 Experiment 2 To Study the Fiber Optics Analog Link using External Function Generator 3 Experiment 3 To Study the Voice Communication using Fiber Optic Media 4 Experiment 4 To Study the Numerical Aperture Measurement 5 Experiment 5 To Study the Coupling Loss of Analog Communication 6 Experiment 6 To Study the Bending Loss of Analog Communication 7 Experiment 7 To Study the Cable Loss of Analog Communication Join the Technical Community Today http www pantechsolutions net APPARATUS REQUIERED OF EXPERIMENTS 1 Fiber Optics Analog Transmitter Module 1 No 2 Fiber Optics Analog Receiver Module 1 No 3 CRO 1 No 4 Function Generator optional 1 No 5 Patch chord 6 No s 6 Fiber Cable 1 meter 1 No 7 Fiber Cable 3 meter 1 No 8 Adapter 15V DC 2 No s 9 Speaker 1 No 10 Mic 1 No 11 Numerical Aperture Setup 1 No 12 Coupling Setup 1 No Join the Technical Community Today http www pantechsolutions net EXPERIMENT 1 Study the Fiber Optics Analog Link using Internal Function Generator Aim To transmit and receive the Sine signal through plastic fiber cable by using internal function generator Apparatus Required 1 Fiber Optics Analog Tr
8. ERAL DESCRIPTION The XR 2206 is a monolithic function generator integrated circuit capable of producing high quality sine square triangle ramp and pulse waveforms of high stability and accuracy The output waveforms can be both amplitude and frequency modulated by an external voltage Frequency of operation can be selected externally over a range of 0 01Hz to more than 1MHz The circuit is ideally suited for communications instrumentation and function generator applications requiring sinusoidal tone AM FM or FSK generation It has a typical drift specification of 20ppm AC The oscillator frequency can be linearly swept over a 2000 1 frequency range with an external control voltage while maintaining low distortion Join the Technical Community Today http www pantechsolutions net 6 3 Pin Description m p UU 2 3 4 5 6 7 8 9 Amplitude Modulating Signal Input Sine or Triangle Wave Output Multiplier Output Positive Power Supply Timing Capacitor Input Timing Capacitor Input Timing Resistor 1 Output Timing Resistor 2 Output Frequency Shift Keying Input Internal Voltage Reference Sync Output This output is a open collector and needs a pull up resistor to Vcc Ground pin Wave Form Adjust Input 1 Wave Form Adjust Input 2 Wave Symetry Adjust 1 Wave Symetry Adjust 2 6 4 Block Diagram of XR 2206 Join the Technical Community Today http www pantechsolutions net Vec GND BIAS 0 0
9. Join the Technical Community Today http www pantechsolutions net 13 Vary the function generator frequency range 50 Hz to 500 KHz and note down the analog output Amplitude 14 Tabulate the readings in bellow tabular Colum 15 Plate the gain vs frequency graph 16 And find the optical analog system bandwidth Tabular Colum Input voltage Vin SI Frequency Output Voltage Gain No Hz Vo 20 log Vo Vin dB Join the Technical Community Today http www pantechsolutions net Model Graph Gain dB 0dB 3dB l l l I l fe Frequency Hz Result Thus the fiber optic analog Link system bandwidth was calculated Join the Technical Community Today http www pantechsolutions net EXPERIMENT 3 Study the Voice Communication using Fiber Optic Media Aim To Study the Voice communication using Fiber Optic Analog Link Apparatus Required 1 Fiber Optics Analog Transmitter Module 01 2 Fiber Optics Analog Receiver Module 01 3 Plastic Fiber cable 1 meter 01 4 Adapter 15V DC 02 5 Patch Chords 06 6 Mic 01 7 Speaker 01 Fiber Optic Voice Communication The human voice consists of sound made by a human being using the vocal folds for talking singing laughing crying Join the Technical Community Today http www pantechsolutions net screaming etc Its frequency ranges from about 50Hz to 12KHz In that voice signal converting electrical signal using microphone
10. This document is owned by www pantechsolutions net PAlncecCr SOLUTIONS Republishing or redistribution is prohibited lechnology Beyond the Dreams USER MANUAL FIBER OPTIC ANALOG TRANSMITTER AND RECEIVER MODULE Table of Contents 1 INTRODUCTION soscaire aee ra anaE EE aE EOE RANKEAR 3 2 PREFACE sscccccewsccegeussssaueuensenborsasswsatoeseherabbeaueuspaeasevennsebssdeasenwenetenieonneesets 4 2 1 Transmitte essre einiino sieni i e a e i e 4 2 2 Optical fi be Ferrsogn eia E I IERI RRTE 4 23 RECEIVET a ciiswsraaivansne aon scenene na ii e i e a a 5 2 4 Advantage of Optical Fiber Systems cccccceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeees 5 2 5 WAST CCL ints anainienis cunawisndasrtnieuistunnccinsinannn dddswabnsiedaaeantieiastenbenpiuaeanecanensccpdvouual 9 3 TECHNICAL SPECIFICATION bs cicosss acsveussaceeasesaisunweiaieeauns cidpeubsaneeneteaceaese 13 3I TRANSMITTER cates atetaase tase et niese ie TE e EERE 13 A FEATURES renoun E E T T 15 4 1 FRONT PANAL DIAGRAM FOR TRANSMITTER ossee 16 4 2 FRONT PANAL DIAGRAM FOR RECEIVER ssssseeeeeeeeeeeeeeeeeeeeeeeees 17 5 EXPERIMENTAL SECTION osssssesssssssssesesssssssssssrrrressssssrrrrrrrreessssrrsrerreeesee 18 5 1 LIST OF EXPERIMENTS wicstcisetcascdvcncecesncreadadssestnndetacnaetauessansnanemantocutess 18 EXPERIMENT L oriresrionerersiorisesrioreiiso irssi ssi ann n EEE EAEAN 20 EXPERIMENT E2 aressrsurerin erenn ae AEE EEES 22 EXPERIMENT 2 wrscunexecceotensisnseiasientedberi
11. ansmitter Module 01 2 Fiber Optics Analog Receiver Module 01 3 Plastic Fiber cable 1 meter 01 4 CRO 01 5 Adapter 15V DC 02 6 Patch Chords 04 Procedure 1 Connect 15V adapter to both transmitter and receiver module 2 Switch sw1 ON the transmitter Module and CRO 3 Connect the CRO Probe positive to P1 and negative to P7 Ground Join the Technical Community Today http www pantechsolutions net 4 Now check the sine wave output on CRO and vary the Frequency and Amplitude pot meter min to max range 5 And set the sine wave output 1 Vpp 1 KHz 6 Connect P1 and P8 using patch chord 7 Connect the CRO positive to P9 test point and check the limiter output 8 Connect P9 and P10 test point using patch chord 9 Connect the 1 m Plastic fiber cable between transmitter module LED to receiver module Photo Diode 10 Switch sw1 ON the receiver Module 11 Connect the CRO probe positive to receiver module P2 test point and negative to P3 test point Now we get received sine signal 12 Connect P2 and P4 using patch chord 13 Now get an amplified output on P5 test point 14 Connect P5 and P6 using patch chord 15 Check the analog output on test point P7 Result Thus the transmit and receive the Sine signal through plastic fiber cable using internal function generator was done Join the Technical Community Today http www pantechsolutions net EXPERIMENT 2 Study the Fiber Optics Analog Link using E
12. ata channels to be combined and propagated over one optical fiber cable Immunity to crosstalk Optical cables are immune to crosstalk between adjacent cables due to magnetic induction Glass or plastic fibers are nonconductors of electricity and therefore do not have magnetic fields associated with them In metallic cables the primary cause of crosstalk is magnetic induction between conductors located physically close to each other Immunity to static interference Optical cables are immune to static noise caused by electromagnetic interference EMI from lighting electric motors fluorescent lights and other electrical noise sources This immunity is also attributed to the fact that optical fibers are nonconductors of electricity and external electrical noise does not affect energy at light frequencies Fiber cables do not radiate RF energy either Join the Technical Community Today http www pantechsolutions net and therefore cannot interfere with other communications systems This characteristic makes optical fiber systems ideally suited for military applications where the effects of nuclear weapons electromagnetic pulse interference EMP have a devastating effect on conventional electronic communications systems Environmental immunity Optical cables are more resistant to environmental extremes than metallic cables Optical cables also operate over wider temperature variations and fiber cables are less affected by cor
13. e fiber optic cable in communication and it will be attenuate the signal gain and strength Procedure 1 Connect 15V adapter to both transmitter and receiver module 2 Switch sw1 ON the transmitter Module CRO and receiver module sw1 3 Set the sine wave output 1 Vpp 1 KHz at P1 4 Connect P1 and P8 P9 and P10 using patch chord 5 Connect the 1 m Plastic fiber cable between transmitter module LED to receiver module Photo Diode 6 Connect P2 and P4 P5 and P6 using patch chord 7 Keep Amplifier pot meter in maximum position Join the Technical Community Today http www pantechsolutions net 8 Note down the analog output on test point P7 9 Now we get the output voltage V 10 Replace the Plastic fiber cable 1m into 3m 11 Now note down the analog output on test point P7 and will get output voltage V3 12 Calculate the Propagation loss a for 3m fiber in dB m a 10 logo V3 V1 Result Thus the Propagation Loss of Fiber Optic System was calculated 6 TECHNICAL DATA SHEETS 1 XR 2206 6 1 FEATURES gt Low Sine Wave Distortion 0 5 Typical gt Excellent Temperature Stability 20ppm AC Typ Join the Technical Community Today http www pantechsolutions net gt Wide Sweep Range 2000 1 Typical gt Low Supply Sensitivity 0 01 V Typ gt Linear Amplitude Modulation gt TTL Compatible FSK Controls gt Wide Supply Range 10V to 26V gt Adjustable Duty Cycle 1 TO 99 6 2 GEN
14. enaceneeedamnevenae EAEE 26 EXPERIMENT 4 cscdesetasin cette seuss tincesccutceinestaecneetatuun A E E Enia 28 EXPERIMENT 5 sresosorssoisirreriiosrosriisecri seir ai n ra EEA EEA 31 EXPERIMENT E 6 ctcssinaiwstenciadinessiescnenstiacetncaeinetaleueesndshnceenaeeeremnehnennameereiemeeteuenns 35 EXPERIMENT Z raon A A AA 39 6 TECHNICAL DAT A SHEETS asap wets cadences eee ee nde eed 41 God FEATURES iz cteemnttcitecndetateencttedeuoubtasennabtadecnbtoedesanubstecettswdcunieienecetiendeseeiss 41 6 2 GENERAL DESCRIPTION ic cenuciecesaacndsdeauiowacesinsadecisavecsoeeatndsdeacaecuaenceseate 42 6 6 System DESCH DUO Me sescetusssnndenseanstasidinassncniartenidieodsinnaieneaciduninantacviae 45 6 7 APPLICATIONS pce seh ee neni sneer tnde ian Renee decent eeaed 46 72 CIRCUIT DIAGRAM asccsiececcseessesssebe tiesanktacescatedideanesatnesete ieenitaseeietetdsaatss 47 Join the Technical Community Today http www pantechsolutions net 1 INTRODUCTION Now we are in the twenty first century the era of Information technology there is no doubt that information technology has had an exponential growth through the modern telecommunication systems Particularly optical fiber communication plays a vital role in the development of high quality and high speed telecommunication systems Today optical fibers are not only used in telecommunication links but also used in the Internet and local area networks LAN to achieve high signaling rates The Fiber Optics A
15. ewer repeaters equate to lower installation and overall system costs and improve reliability Join the Technical Community Today http www pantechsolutions net Components used in the optic fiber communication systems Fiber Optic Analog communication The fiber optic analog link consists of a transmitter which converts an electrical signal to a light signal an optical fiber to guide the light and a receiver which detects the light signal and converts it to an electrical signal Light sources are either light emitting diodes LED s or laser diodes and detectors are phototransistors or Photodiodes 2 5 Transmitter Transmitting LED SFH 756V a Join the Technical Community Today http www pantechsolutions net The heart of the transmitter is a light source The major function of a light source is to convert an information signal from its electrical form into light Today s fiber optic communications systems use as a light source either light emitting diodes LEDs or laser diodes LDS Both are miniature semiconductor devices that effectively convert electrical signals into light They need power supply connections and modulation circuitry All these components are usually fabricated in one integrated package Transistor based driver circuit need for this type LEDs 2 6 Optical fiber The transmission medium in fiber optic communications systems is an optical fiber The optical fiber is the transparent flexible fila
16. fier pot meter in maximum position 8 Note down the analog output V on test point P7 9 Now bend the fiber cable like fig 1 measure the bending diameter and output voltage V change the bending diameter and tabulate the readings Fig 1 bending measurement Tabular Colum Join the Technical Community Today http www pantechsolutions net Input Voltage Vin SI Bending No Diameter Output Voltage Gain 10log V Vin Vo dB d Model Graph Result Gain dB Diameter cm Join the Technical Community Today http www pantechsolutions net Thus the Bending Loss of Fiber Optic System was calculated EXPERIMENT 7 Study the Attenuation Loss of fiber optic analog Communication Aim To Study the Propagation Loss Measurement in Fiber Optic System Apparatus Required 1 Fiber Optics Analog Transmitter Module 01 2 Fiber Optics Analog Receiver Module 01 3 Plastic Fiber cable 1 meter 01 4 Plastic Fiber cable 3 meter 01 5 CRO 01 6 Adapter 15V DC 02 7 Patch Chords 06 Join the Technical Community Today http www pantechsolutions net Propagation Loss In fiber optic system face some losses in communication which losses accrued from material cable length couple the more no of fiber optic cable splicing the fiber cable etc in propagation loss cable length act as a loss in fiber optic system In this loss identify from using long distanc
17. mation signal entered at the transmitter end of a Join the Technical Community Today http www pantechsolutions net fiber optic communications system is delivered to the receiver end by the optical fiber 2 3 Receiver The key component of an optical receiver is its photo detector The major function of a photo detector is to convert an optical information signal back into an electrical signal Photocurrent The photo detector in today s fiber optic communications systems is a semiconductor photodiode PD This miniature device is usually fabricated together with its electrical circuitry to from an integrated package that provides power supply connections and signal amplification 2 4 Advantage of Optical Fiber Systems Greater information capacity Optical fiber communications systems have a greater information capacity than metallic cables due to the inherently larger bandwidths available with optical frequencies Optical fibers are available with bandwidth up to10 GHz Metallic cables exhibit capacitance between and inductance along their conductors causing them to act like low pass filters which limit their Join the Technical Community Today http www pantechsolutions net transmission frequencies bandwidths and information carrying capacity Modern optical fiber communication systems are capable of transmitting several gigabits per second over hundreds of miles allowing literally millions of individual voice and d
18. ment that guides light from a transmitter to a receiver An optical information signal entered at the transmitter end of a fiber optic communications system is delivered to the receiver end by the optical fiber Model Diagram for Plastic Fiber cable Join the Technical Community Today http www pantechsolutions net Fiber cable Properties POF or Plastic Fibre Optic Oo Cadding Fibre Optic Cable Care 080um Cladding amp core Receiver Receiving Photo Diode SFH 250V Join the Technical Community Today http www pantechsolutions net The key component of an optical receiver is its photo detector The major function of a photo detector is to convert an optical information signal back into an electrical signal Photocurrent The photo detector in today s fiber optic communications systems is a semiconductor photodiode PD This miniature device is usually fabricated together with its electrical circuitry to from an integrated package that provides power supply connections and signal amplification Join the Technical Community Today http www pantechsolutions net 3 TECHNICAL SPECIFICATION 3 1 TRANSMITTER Transmitter LED Type Source Wavelength Input signal type Maximum l P voltage Supply Voltage Function Generator and Amp Speed LED Interface LED Driver Mic Pre Amplifier Supply current Interface connectors DC coupled 660nm Analog Signal 1 5Vpp 15V DC Sine Signal a
19. nalog communication Module consists of Fiber Optics Analog Transmitter Module PS FO AT and Fiber optics Analog Receiver Module PS FO AR It uses to study the Fiber Optics Analog Transmission and Reception through plastic fiber cable In Transmitter Module Onboard Function Generator at Variable frequency and Variable Amplitude Supporting External Sine signal at certain range Voice communication and LED Driver circuit In Receiver Module Photo diode Driver section Amplifier Buffer and Power Amplifier circuit All connecterization are Join the Technical Community Today http www pantechsolutions net through BNC Connecters RS232 connecters uninsulated sockets and Patch chords 2 PREFACE 2 1 Transmitter The heart of the transmitter is a light source The major function of a light source is to convert an information signal from its electrical form into light Today s fiber optic communications systems use as a light source either light emitting diodes LEDs or laser diodes LDS Both are miniature semiconductor devices that effectively convert electrical signals into light They need power supply connections and modulation circuitry All these components are usually fabricated in one integrated package 2 2 Optical fiber The transmission medium in fiber optic communications systems is an optical fiber The optical fiber is the transparent flexible filament that guides light from a transmitter to a receiver An optical infor
20. of Fiber Optic System was calculated EXPERIMENT 6 Study the Bending Loss of fiber optic analog Communication Aim To Study the Bending Loss Measurement in Fiber Optic System Apparatus Required Join the Technical Community Today http www pantechsolutions net 1 Fiber Optics Analog Transmitter Module 01 2 Fiber Optics Analog Receiver Module 01 3 Plastic Fiber cable 1 meter 01 4 CRO 01 5 Adapter 15V DC 02 6 Patch Chords 06 Bending Loss In fiber optic system face some losses in communication which losses accrued from material cable length cable bend couple the more no of fiber optic cable splicing the fiber cable etc in bending loss cable bend will act as a loss in that fiber optic system In fiber optic system light signal passes through fiber cable from one end to another end If bends the fiber cable the light signal was strike in there both ways So now only bending loss accrued in the fiber optic system Procedure 1 Connect 15V adapter to both transmitter and receiver module Join the Technical Community Today http www pantechsolutions net 2 Switch sw1 ON the transmitter Module CRO and receiver module sw1 3 Set the sine wave output V 1 Vpp 1 KHz at P1 4 Connect P1 and P8 P9 and P10 using patch chord 5 Connect the 1 m Plastic fiber cable between transmitter module LED to receiver module Photo Diode 6 Connect P2 and P4 P5 and P6 using patch chord 7 Keep Ampli
21. rosive liquids and gases Safety Optical cables are safer and easier and to install and maintain than metallic cables Because glass and plastic fibers are nonconductors there are no electrical currents or voltages associated with them Optical fibers can be used around volatile liquids and gases without worrying about their causing explosions or fires Optical fibers are smaller and much more lightweight than metallic cables Consequently users are easier to work with and much better suited to airborne applications Fiber cables also require less storage space and are cheaper to transport Join the Technical Community Today http www pantechsolutions net Security Optical fibers are more secure than metallic cables It is virtually impossible to tap into a fiber cable without the user s knowledge and optical cables cannot be detected with metal detectors unless they are reinforced with steel for strength These are also qualities that make optical fibers attractive to military applications Longer lasting Although it has not yet been proven it is projected that fiber systems will last longer than metallic facilities This assumption is based on the higher tolerances that fiber cables have to changes in environmental conditions and their immunity to corrosives Economics The cost of optical fiber cables is approximately the same as metallic cables Fiber cables have less loss however and therefore require fewer repeaters F
22. t Variable Freq 2 Mbps Self locking Cap On board Transistor Driver Transistor Based 100 mA Maximum 2mm socket Join the Technical Community Today http www pantechsolutions net RECEIVER Receiver type DC coupled Diode Wavelength 660nm 850nm Receiving Range Up to 1OOMHz Photo Diode Interface Self Locking Cap Photo Diode Driver Internal Diode Driver Power Amplifier IC Max232 Based Amplifier Optical cable Plastic fiber multimode 1000 Micron core Core Refractive Index 1 492 Cladding Refractive Index 1 406 Numerical Aperture 05 Interface connector 2mm socket Join the Technical Community Today http www pantechsolutions net 4 FEATURES gt On board Sine wave generator at variable Amplitude and frequency gt Input over voltage protection using ICs gt Transmitter driver supports low and medium frequency input signal gt Supporting External Sine signal at variable range 10 Hz to 500 KHz gt Number of test point to study the fiber Analog optic link gt Wide receiving range gt Wider bandwidth link at 660nm to 850 nm gt Voice communication over plastic fiber optic cable gt On Board Driver at the transmitter and receiver Join the Technical Community Today http www pantechsolutions net 4 1 FRONT PANAL DIAGRAM FOR TRANSMITTER Join the Technical Community Today http www pantechsolutions net 4 2 FRONT PANAL DIAGRAM FOR RECEIVER
23. xternal Function Generator Aim To Study the Band width Measurement of Fiber Optic Analog Link Apparatus Required 1 Fiber Optics Analog Transmitter Module 01 2 Fiber Optics Analog Receiver Module 01 3 Plastic Fiber cable 1 meter 01 4 CRO 01 5 Function Generator 1MHz 01 6 Adapter 15V DC 02 7 Patch Chords 06 System Band width If the fiber optical analog link system Bandwidth means the analog link system supporting range It will be Join the Technical Community Today http www pantechsolutions net defined the system supporting minimum and maximum frequency range The well communication systems have higher Bandwidth range and that system ready to transmit and receive higher range of signal in broad bandwidth Procedure 1 Connect 15V adapter to both transmitter and receiver module 2 Switch swi ON the transmitter Module CRO and function generator 3 Connect the BNC to BNC cable between function generator and Ext Analog input P2 connecter 4 Now check the P3 test point and get sine wave output on CRO 5 Set the sine wave output 1 Vpp Vin 6 Connect P3 and P8 using patch chord 7 Connect P9 and P10 using patch chord 8 Connect the 1 m Plastic fiber cable between transmitter module LED to receiver module Photo Diode 9 Switch sw1 ON the receiver Module 10 Connect P2 and P4 using patch chord 11 Connect P5 and P6 using patch chord 12 Check the analog output V on test point P7

fiber optic analog transmitter and receiver module

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