PDF of this product
Additional Product Information
pdf Telecommunication Brochure (2 Mb)

Feedback 58-001 Telephony Training System

The Feedback range of Telecommunications training equipment has been designed to provide a modern, efficient approach to training the engineers and technicians working in this field.


  • Uses Discovery Software
  • Uses commercial telephony components

Telephone and Interface Signalling, speech circuits and the immediate interface at the switching centre are examined. The use of a high quality, commercial telephone hybrid circuit in the subscriber’s line interface (SLIC) allows useful measurements to be made. TDM/PCM Principles Allows the study of the principles TDM/PCM. It is based on the use of standard telephony devices but also uses special circuits to demonstrate the effects of variable sampling rate, bit rate and filtering. PAM is used to demonstrate the concept of taking short samples to represent a continuous waveform. TDM is demonstrated by multi-channel PAM which demonstrates the principle of sharing a single physical link between different communication channels.

Curriculum Coverage
  • Telephone Signalling
  • Telephone Speech
  • Subscriber’s Line Interface Circuit (SLIC)
  • Dual Tone Multi-Frequency (DTMF) Signalling
  • SLIC Hybrid
  • Testing
  • TDM/PCM Principles
  • Sampling
  • Multiplexing (TDM)
  • Pulse Code Modulation (PCM)
  • Companding
  • Filtering

    Additional pictures

    58-004 Digital Trunk Network System

    58-002 Digital Switching System

    Instruments Techno Test inc.

    Instruments Techno Test inc.
    2345, Michelin street, #100
    Laval, Qc
    H7L 5B9

    Téléphone : (450) 681-5777
    Télécopieur : (450) 681-3773

    Printed from: catalogue.techno-test.com/products/6-Educational_Products/286-Feedback_58_001-Feedback_58_001_Telephony_Training_System.html
    Copyright © 2020 | Instruments Techno Test inc. | Reproduction interdite