Scientech2501A TechBook for Optical Fiber Communication

• 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

- 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 × D 252 × H 52
- Weight: 1 Kg approximately
- Operating conditions: 0-40ºC, 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.

- Setting up Fiber Optic Analog & Digital Link
- AM system 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