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

Digital content (BI-01)

Computer Interface Base Unit with Built-in Power Supply (MS-001)

Description
Technical Details

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

Computer Interface Base Unit with Built-in Power Supply

MSM-002

Digital content (BI-01)

BI-01

Modular Fiber Optics Communications Kit

(CM - 005)