LINK-B is an Advance Fiber Optic Communication Trainer Kit designed to learn the fundamentals of fiber optics including properties of Transmitter and Receiver, Characteristics of Fiber Optic Components, Bit Error Rate measurement, Eye pattern observation, Manchester coding / decoding techniques and Voice signal Transmission using CODEC Chip and Telephone hand sets. Exhaustive manuals have been provided with the kit along with Data sheets for various optical components used in the kit.

FEATURES:
• Fiber Optic Transmitter : 2 wavelengths (660nm & 950nm).
• Fiber Optic Receiver : 2 types. (PIN Photodiode, Phototransistor detector).
• On Board Function generator.
• N. A. Measurement.
• Fiber Optic Analog Link.
• Fiber Optic Digital Link.
• Pulse Code Modulation using CODEC Chip.
• Manchester Coding/ Decoding.
• 16 Channels Time Division Multiplexing.
• Two 8 Bit Marker.
• Channel Indication.
• Bit Indication.
• Noise Source.
• Bit Error Rate Measurement.
• PRBS Generator.
• Eye Pattern.
• Voice Communication.
• PC to PC communication using RS-232 Interface.
• Switch Faults.

LIST OF EXPERIMENTS:
• Setting up a Fiber Optic Analog Link.
• Setting up a Fiber Optic Digital Link.
• Measurement of Losses in Optical Fiber:
• Measurement of Propagation Loss.
• Measurement of Bending Loss.
• Measurement of Numerical Aperture.
• Characteristics study of LED’s & Photo detectors.
• Study of Time Division Multiplexing using 16 data channels.
• Study of Framing in Synchronous Time Division Multiplexing.
• Study of Marker in Time Division Multiplexing.
• Measurement of Bit Error Rate.
• Study of Eye Pattern.
• Study of Manchester coding and decoding.
• Study of PCM Voice coding and frequency response of a CODEC chip.
• Forming PC to PC Communication Link using Optical Fiber and RS-232 Interface.
• Switch Faults.