Features

• Simplex Analog and Digital Transreceiver 660 nm channel with Transmitter & Receiver
• AM-FM-PWM modulation/demodulation
• On board Function Generator
• On board Clock & Data Generator
• On board Bit Error Counter Crystal controlled Clock
• Functional blocks indicated on-board mimic
• Input-output & test points provided on board On board voice link
• Built in DC Power Supply Numerical Aperture measurement jig and mandrel for bending loss measurement
• Switched faults on Transmitter & Receiver

Technical Specifications

• Transmitter: 1 no., Fiber Optic LED having peak wavelength of emission 660 nm
• Receiver:1 no., Fiber Optic Photodetector
• Modulation Techniques: 1. AM 2. FM 3. PWM
• Drivers: 1 no. with Analog & Digital modes
• Clock: Crystal controlled Clock 4.096 MHz
• PLL Detector: 1 no
• AC Amplifier: 1 no
• Comparator: 1 no
• Filters:1 no. 4th order Butterworth, 3.4 KHz cut-off frequency
• Analog Band Width:350 KHz
• Digital Band Width: 2.5 MHz
• Function Generator: 1 KHz Sine wave (Amplitude adjustable) 1 KHz Square wave (TTL)
• Clock Generator: 64 KHz/128 KHz/256 KHz (TTL)
• Data Generator: 15 Bit
• Noise Generator: Variable level
• Bit Error Counter: 4 digits, 7 segment display
• Voice Link: F. O. voice link using microphone & speaker (built in)
• Switched Faults: 4 in Transmitter & 4 in Receiver
• Fiber Optic Cable: Connector type Standard SMA
• Cable Type: Step indexed multimode PMMA plastic cable
• Core Refractive Index: 1.492
• Clad Refractive Index: 1.406
• Numerical Aperture: Better than 0.5
• Acceptance Angle: Better than 60 deg.
• Fiber Diameter: 1000 microns
• Outer Diameter: 2.2 mm
• Fiber Length: 0.5 m & 1 m
• Test Points: 34 nos
• Inter connections: 2 mm sockets
• Dimensions (mm): W 326 x D 252 x H 52
• Weight: 1 Kg approximately
• Operating conditions: 0-40 C, 80% RH
• Power Supply: 110-220 V, ±10%, 50/60 Hz
• Power Consumption: 3 VA approximately
• Included Accessories: NA Measurement jig, Mandrel, Fiber cables, Microphone, Headphone,Set of Patch cords
• Optional Accessories: Optical Power Meter, 5 meter fiber cable, 10 meter fiber cable.

Experiments

• Setting up Fiber Optic Analog & Digital Link
• AMsystem using Analog & Digital Input Signals
• Frequency Modulation System • Pulse Width Modulation System
• Study of Propagation Loss in Optical Fiber Study of Bending Loss
• Measurement of Numerical Aperture
• Characteristics of Fiber Optic Communication Link Setting of Fiber Optic Voice Link using AM, FM & PWM
• Study of switched faults in AM, FM & PWM System
• Propagation loss using Optical Power Meter
• V-I Characteristics of LED (E-O converter) Characteristics of Photo Detector
• Effect of EMI on Optical Communication
• Measurement of Bit Error Rate
• Study of Eye Pattern