Optical Fibre Trainer

Optical Fibre Trainer

OFT

The Optical Fibre Trainer OFT is a powerful, versatile and cost-effective experimental kit used to train students in the principles of fibre optics, through the basics of digital base and communications, onto advanced experimentation and development in fibre optic and digital communications.

Using the standard kit it can be used to cover established digital communication subjects such as; Time Division Multiplexing, Transmitter and Receiver operation, PCM voice coding at (64Kbits/sec), Manchester coding/decoding for timing recovery, Voice coding - A-Law and Pulse broadening in Fibre optic communications.

• Features

  • Eleven usable 64kbps channels
  • User definable frame marker (two alternating 8-bit markers - can be set to be CCITT (UTIT) compatible)
  • On-board two digitised voice channels, one 8-bit data channel and several user expansion channels
  • Demonstrates fully operational integrated voice/data fibre optic communication link
  • Optional RS232C communications module used to demonstrate computer communications over fibre
  • Time division multiplexing of voice, data and user-defined data streams
  • Modular design, enables configuration with userdesigned modules
  • Wide scope for experimentation through use of external circuitry interfaced to kit
  • Comprehensive manual describes wide range of experiments
  • Ready-to-use kit, complete with accessories

• Subject Area

  • Basic Experiments Fibre optics
  • Fibre Optic Analogue Links
  • Digital Link
  • Losses in Optical Fibre
  • Effect of EMI Interference
  • Numerical Aperture Measurement
  • Multiplexing and Digital Comms
  • Time Division Multiplexing
  • Framing in Time Division Multiplexing
  • Voice Coding - A-Law
  • Pulse Broadening in Fibre Optic Communications
  • Interfacing 8, 64, 256 kbs Synchronous Channels
  • Asynchronous Channel Interfacing using Oversampling and Bit Stuffing