Network and protocols

Network protocols

Understand how devices communicate

When you read this page on a connected device such as a smartphone, tablet, desktop PC or laptop, you expect it to work in a certain way. But have you ever considered how these devices actually communicate with a network to access the information you want? There are very specific communication protocols, or standards, that allow devices within a communication system to ‘talk’ to each other by transmitting information. Protocols define the rules and language of this communication that enable the behaviour you expect. Using the renowned learning system FACET, we offer comprehensive training in network protocols, thus establishing a strong foundation for further studying the topic of communications.

FACET network protocols

eSeries FACET: a complete training solution for communications

FACET® with eSeries is a unique combination of hardware and software and forms a comprehensive training solution. The hardware components of the FACET® learning system are extremely reliable and have been developed for maximum durability.

To study network protocols, experiments are conducted in six communications-related training modules that combine theoretical knowledge with the application of hands-on skills training. Available training add-ons: Add-ons E-Blocks und FACET with Bluetooth and internet communication, as well as RFID, mobile telephony, USB, CAN and ZigBee. The add-ons require the FACET microcontroller system development board.

Training modules included:


Analogue communication

  • Comprehensive, hands-on introduction to analogue communications terminology, basic principles and applications
  • Hands-on circuit training
  • Measuring radio signals with an oscilloscope
  • Functions of oscillators, filters, amplifiers, LC networks, modulators, limiters, mixers and detectors in communication circuits


Digital communications 1

  • Comprehensive, hands-on introduction to the terminology, basic principles and application of digital communications
  • Circuits include: sampler, sample and hold, adder, ramp generator, comparator, limiter, filter, CODEC, PLL, compressor, expander, integrator, differentiator, latched comparator, speaker amplifier and channel simulator


Digital Communications 2

  • Builds on Digital Communications 1 for a more advanced, comprehensive, hands-on introduction to the terminology, basic principles and applications of digital circuits
  • Circuits include: NRZ, RZ, Manchester encoding/decoding, clock synchroniser, frequency shift keying (FSK) generation, asynchronous and synchronous FSK detection, PSK generation, synchronous PSK detection, amplitude shift keying (ASK) generation, asynchronous and synchronous ASK detection, channel effects and FSK/DPSK modem (differential phase shift keying)


Fibre-optic communications

  • Comprehensive, hands-on introduction to the theory and practical applications of fibre-optic communications technology
  • Solid foundation in the theory and practice of fibre optics and communication techniques
  • Eleven circuit blocks provide the opportunity for hands-on experiments with several varieties of fibre optic transmission and reception

FACET-communication-transmission lines-91028

Communication transmission lines

  • Theory and measurement skills for implementing and testing communication transmission lines
  • Principles and operational characteristics of transmission lines
  • Measuring transmission lines under transient conditions (step tests) and sinusoidal, stable conditions
  • Fundamentals of the theory and practical application of time-domain reflectometry (TDR), impedance matching and transformation
  • Testing transient and steady-state behaviour using two generators



  • Knowledge of the theory and practice of measurements to implement and test different types of PSK modulation and demodulation techniques in pulse code modulation (PCM) concepts
  • Principles and operational characteristics of unipolar and bipolar signals in a baseband transmission
  • Measurement and comparison of BPSK, QPSK, OQPSK and DPSK signals in the time and frequency domains using an oscilloscope and spectrum analyser