Modular Fiber Optics Communications Kit
(CM - 005)
  • Setting up Fiber Optic Analog Link
  • Setting up Fiber Optic Digital Link
  • Study of Propagation Loss in Optical Fiber
  • Study of Bending Loss in Optical Fiber
  • Numerical Aperture Measurement
  • Characteristics of  Fiber Optics  Communication Link
  • Setting up of Fiber Optics voice link using Intensity Modulation
  • Setting up Fiber Optics voice link using Frequency Modulation
  • Setting up of Fiber Optic Voice Link using PWM
  • Two cables with light insertion and different angles
  • Different light sources in fiber optics cable
  • Sending and receiving characters and string by fiber optics
  • Morse Code with fiber optics
  • Kit to PC Communication via Fiber Optic cables
  • PC to Kit Communication via Fiber Optic cables
  • PCM – encoding/decoding
  • Time division multiple access (TDMA)
  • Sampling and Nyquist in PCM
  • Line coding and bit-clock regeneration
  • Fiber optic transmission
  • PCM-TDM 'T1' implementation
  • Optical signal filtering, splitting & combining
  • Fiber optic bi-directional communication
  • Wave division multiplexing (WDM)
  • Modular Fiber Optics Communications Kit (CM - 005)
  • Hard copy user manual

The modular fiber optics communications kit provides a complete solution to learning the key concepts of the transmission and manipulation of optical signals in modern fiber optics communication systems. it provides the students with a background in the important digital communication topics of digitization, encoding, and multiplexing. The fiber optics modular Kit is based on the concept of a Block Diagram. It is a featured solution for introducing communication technologies to the trainee for the first time. The kit consists of multiple blocks, each block represents a part of the circuit that performs an experiment.

                                     
  • Module Left-hand side banana is for signal inputs (high impedance inputs).
  • Module Right-hand side banana is for signal outputs (Low impedance outputs).
  • Banana Marks for analog and digital signals to ease the interconnection.
  • Input and outputs are protected due to mis-wiring.
  • Variable controls adjustment in modules depends on the observation and measurement of output signals.
  • Objectives:
    • Students will gain a comprehensive knowledge of optical signals in modern fiber optic communications systems.
    • Students will gain knowledge of the critical digital communication topics of digitization, encoding, and multiplication.
  • Due to the engineering "modeling" nature of the trainer, students will acquire a deeper mathematical understanding of fiber optic communication systems.
  • Kit modules
    •  Variable DC Voltage Signal Module:
        • Output Signal : Variable (-2.5 to 2.5V up to 5mA), Fixed (+5V DC up to 10mA)
    • Function Generator Module:
      • Output Signal :
        • Analog ( 100KHz Sine, 2KHz Sine, 100KHz Cos ) 4Vpp
        • Digital ( 100KHz, 8KHz, 2KHz ) 0:5V
    •  PCM Bit Clk Regenerator Module:
      • Input signal: PCM data stream
      • Output Signal : 0:5V DC ,100kHz clock
    • PCM Encoder Module:
      • Input signal : 2 Analog +/- 2Vp ( Audio Frequency ), CLK Digital 0:5V up to 128KHz
      • Output Signal : Serial, 0:5V Data Stream in Standard offset binary format (8bits) Plus Frame Synchronization Pulse (FS).
      • Modes : PCM / TDM
    • PCM Decoder Module:
      • Input Signal : Serial, 0:5V Data Stream in Standard offset binary format (8bits) Plus Frame Synchronization Pulse (FS) and CLK Digital 0:5V up to 128KHz.
      • Output signal : 2 Analog +/- 2Vp ( Audio Frequency )
      • Modes : PCM / TDM
    • Amplifier Module:
      • Input signal : Analog up to 4Vpp
      • BW: DC up to 500 KHz
      • Gain : 0.2 to 10
    • Speech Module:
      • Input Sensor : Electret-Type Microphone
      • Output Signal : Analog 0.2Vrms
    • Sequence Generator Module:
      • Input Signal : Digital 0:5V ,1Hz to 100KHz
      • Number of sequences : 2, X (31 bits) and Y (255 bits)
      • Output Signals : Digital 0:5V ( X, Y and Sync )
  • Line Code Encoder Module:
    • Input Signal : Digital 0:5V
    • Line Codes Modes :
  • Non Return to Zero level (NRZ-L).
  • Bi-phase line (Manchester).
  • Return to Zero - Alternate Mark Invert (RZ-AMI)
  • Non Return to Zero - Mark (NZR-M)
    • Input Clock : Digital 0:5V, up to 100 KHz
    • Output Signal : -2V to +2V
  • Two Low-pass filters MODULE:
    • Input signal : Analog up to 4Vpp
    • Gain :1.2
    • Cutoff Freq : 2 KHz , 1KHz
    • Type: 4th order Butterworth
  • Transmitter Modules:
    • Two RED transmitters and One GREEN transmitter.
    • Fiber Optic Device-RED: high radiance LED, 660nm
    • Fiber Optic Device-GREEN: high radiance LED, 530nm
    • Input signal: digital data up to 5v
    • rate speed :1 Mbps
  • Receiver Modules:
    • PIN photodiode
    • wavelength: up to 850nm
    • high speed and low noise
  • optical cables:
    • 1000µm, polymer, single-core fiber cables
    • Minimum Bend Radius: 100mm
  • Two Coupler Modules:
    • Four port couplers
    • Strong Path port-to-port loss: 4.5dB, A to D and B to C
    • Weak Path port-to-port loss: 6dB, A to C and B to D
    • Back Reflection: 21dB, A to B and C to D
  • Two WDM Modules:
    • red and green wavelength filters.
    • Red Filter Loss: 6dB
    • Green Filter Loss: 7dB
    • Extinction of the other Wavelength:18dB
  • Expansion module:
    • To install optional additional modules
  • Analog I/O module:
    • two terminals to produce signals & two terminals to read and analyze analog signals using the main unit software
  • Digital I/O Module:
    • Eight terminals to produce digital signals or read and analyze digital signals using the main unit software