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Advanced Fiber Optics Trainer Fiber Optics as a new transmission medium has revolutionized the telecommunication industry. Fiber Optic systems have numerous performance and cost advantages over traditional radio and wire based transmission systems. The study of Fiber Optic communication systems thus have become more important. Advanced Fiber Optics Trainer ST2502 is designed to learn the communication techniques in Fiber Optics. The trainer demonstrates properties of Fiber Optics Transmitter & Receiver, characteristics of Fiber Optics Cable, different types of Modulation / Demodulation techniques and PC to PC communication via fiber link using RS232 interface. A large number of experiments are included in the Workbook and many more can be performed ST2502 can also be used to demonstrate various Digital Communication Techniques via Fiber Optic link using Scientech Digital Communication Trainers. Features
- Full Duplex Analog & Digital Trans-receiver.
- Single Module covering large number of experiments including experiments with Optical Power Meter.
- 660 nm & 950 nm channels with Transmitter & Receiver.
- AM-FM-PWM modulation / demodulation.
- PC-PC comm. with RS232 ports & software.
- On board Function Generator.
- Crystal Controlled Clock.
- Functional Blocks indicated on-board mimic.
- Input-output and test points provided on board.
- On board voice link.
- Built in DC power supply.
- Numerical Aperture measurement jig and mandrel for bending loss included.
- Switched faults on Transmitter & Receiver.
- Students workbook and Operating Manual contains theory of Fiber Optics Technology, experiments & Glossary of Fiber Optics Terms.
Experiments that can be performed
- Setting Up Fiber Optic Analog Link &Fiber Optic Digital Link.
- AM system using Analog & Digital Inputs.
- FM & PWM Modulation Systems.
- Propagation loss in Optical Fiber.
- Bending loss in Optical Fiber.
- Measurement of Numerical Aperture.
- Characteristics of E-O Converter (LED).
- Characteristics of F.O. communication Link.
- Measurement of power using Optical Power Meter.
- Characteristics of E-O converter using Optical Power Meter.
- Propagation loss using Optical Power Meter.
- Setting of Fiber Optic Voice Link using AM-FM & PWM.
- Study of Switched Fault in AM-FM & PWM systems.
- Full Duplex Computer Communication using RS232 ports and software.
Technical Specifications
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Transmitter
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2 No, fibre optic LED having pack wavelength of emission 660nm and 950 nm
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Receiver
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2 Nos, Fiber optic Photo detector
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Modulation Techniques
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AM , FM, PWM
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Drivers
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1 No with Analog and Digital modes
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AC Amplifier
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2 Nos
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Clock
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Crystal controlled clock 4.096 MHz
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PLL detector
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1 No
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Comparator
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2 Nos
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Filters
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2 Nos. 4th Butter worth, 3.4 KHz cut-off frequency
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Analog Band Width
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350 KHz
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Digital Band Width
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2.5 MHz
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Function Generator
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1 KHz Sine wave (Amplitude adjustable)
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1 KHz square wave (TTL)
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Voice Link
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F.O. voice link using microphone & speaker (built in)
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PC-PC Communication
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Using 2 channel RS232
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Port
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RS232 9 Pin
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Baud Rate
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19200 baud
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Core Refractive Index
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1.492
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Acceptance Angle
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Better than 60 deg
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Fiber Length
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0.5m & 1m
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Test Points
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50
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Inter connections
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4 mm sockets
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Dimensions (mm.)
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W 340 D 241 H 105
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Weight
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2.4 Kg (approx.)
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Power Supply
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220 V +10 %, 50 Hz / 60 Hz on request
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Power Consumption
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4.5 VA (approx.)
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Optional Accessories
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Optical Power Meter, 5 meter fiber cable
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