Experiments Included:

  • Understanding Serial Port
  • Understanding Synchronous & Asynchronous Serial Communication
  • Understanding Null Modem used in Serial Communication
  • Understanding PC to PC Serial Communication
  • Understanding Fiber Optic Communication
    • Half Duple
    • Full Duplex
  • Understanding Wireless Communication
  • Understanding Modem Communication
  • Understanding Flow Control in Serial Communication
  • Understanding the Protocols used in Serial Communication
  • Understanding PIN Outs of Parallel Port

IT-4402 is designed to assist students and practitioners to understand the various methods of data transmission between two computers. The user can perform number of experiment on trainer relating to base band data transmission like wire link, optical fiber link and wireless link through serial port to observe data transmission from one PC to another. Moreover user can also understand the technique relating to modulated data transmission like FSK Modem through serial port to observe data transmission from one PC to another. In depth knowledge of ports and its functional details can be studied with the use of the supporting software provided. Manuals and notes help the user to understand the major terminologies and theory related to Data Communication.


  • Power Supply Included
  • Required Circuits Tested
  • Each Section Clearly Marked for Input and Output
  • Each Section Works as an Independent Unit
  • Built-In Clock Generator
  • Built-in Data Generator
  • Each Section Clearly Marked for Easy Understanding

Technical Features:

  • Serial Communication: RS-232 protocol using DB-9 connector
  • PC-PC communication using USB-UART interface
  • Parallel Communication: Using LPT protocol
  • Fiber Optic Transmitter: Dual Photo LEDs
  • Fiber Optic Receiver: Dual Photo detectors
  • Core type: Step indexed multimode PMMA plastic cable
  • Infrared Transmitter: IR LED
  • Infrared Receiver: Universal IR Receiver
  • Data generator: 8-Bit NRZ type
  • Modulation: FSK Modulation
  • Carrier: 300 KHz
  • FSK Demodulation: Tone Decoder
  • Interconnections: 2mm gold plated pins

Accessories: USB Cable, DB25 Parallel Port cable, Plastic Fiber Cable, Operating Manual, Software CD, 2mm patch cords, DB9 serial port cable