Introduction
The Benchmark OFT Optical Fibre Trainer is a powerful, versatile and cost-effective experimentor kit, usable to train personnel at all levels – from beginner to expert.
The OFT Trainer facilitates demonstration, training & experimentation in basic and advanced concepts including:
- Principles of fibre-optic communications
- Basics of digital base and communications
- Advanced experimentation and development in fibre optic & digital communications.
It is suitable for training of
- R & D Personnel in research labs
- Students at B.S. & M.S. (EE) levels in engineering colleges
- Technical Training Centres – Telecom, Industry R & D, Staff Training, etc.
- Students in Polytechnics and Science colleges
Features
- Eleven usable 64 kbps channels
- User definable frame marker (two alternating 8-bit markers – can be set
to CCITT compatible)
- On-board two digitized voice channels, one 8-bit data channel and several user expansion channels
- Demonstrates fully operational integrated voice/data fibre-optic
communication link
- RS-232C communications module optional – demonstrates computer
communications over fibre
- Time Division Multiplexing of voice, data & user-defined data streams
- Modular design enables configuration with user-designed modules
- Wide scope for experimentation through use of external circuitry
interfaced to kit
- Comprehensive manual describes wide range of experiments – can form basis of courses
- Ready-to-use kit comes complete with accessories
Expriments
Basic Experiments
- Fibre Optic Analog Links
- Digital Link
- Losses in Optical Fibre
- Effect of EMI Interference
- Numerical Aperture Measurement
- Time Division Multiplexing
- Framing in Time Division Multiplexing
- Manchester Coding/Decoding – Timing recovery
- "Voice Digitalization – A-Law
- Pulse broadening in Fibre Optic Communications
Advanved Experiments
- Interfacing 8 kbps synchronous channels
- Interfacing 64 kbps synchronous channels
- Interfacing 256 kbps synchronous channels
- Interfacing synchronous channels at less than 8 kbps
- Asynchronous channel interfacing using oversampling
- Asynchronous channel interfacing using bit stuffing
Advanced Application
- 1/4 voice channel
- Manchester coder/decoder with PLL clock recovery
- 4B/5B (or 5B/6B) coder/decoder with clock recovery
- Frame marker coder/decoder
- RS-232 communication link
- Slow-scan video link
For more information visit Benchmark Electronics
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