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 SPECIFICATIONS

SIP397AC Digital Communications

The age of analog has passed and digital communications are now in widespread use. The telephone companies of the world are upgrading to digital telephony, compact disk (CD) players in many homes read and reproduce digitized music (and video in the near future), commands and telemetry to and from spacecraft are digitized, and several of the systems under consideration for high definition TV (HDTV) involve digital techniques.

This course focuses primarily on the application of digital techniques using PCM in telephony. Basic fiber optics is introduced, as is digitized speech and speech recognition. The course provides approximately 100 hours of instruction.

EQUIPMENT SPECIFICATIONS

PANEL 1 – SIP397-1

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Universal Clock -- Adjustable between 900 KHz and 2.1 MHz

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Sample-and-Hold Circuitry using a Bi-FET IC

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Analog/Digital (A/D) Converter using 8-bit Successive Approximation, 100 ms Conversion Time

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Digital/Analog (D/A) Converter using Monolithic High-Speed Circuitry with Typical Settling Time of 10 nS

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Programmable Digital Filter -- Low-Pass, High-Pass, and Notch Implementations with a Single IC

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Compandor Experimentation using a Single IC, IV input, 20 mV output

PANEL 2 – SIP397-2
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Touch-Tone Dialing (DTMF)

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Pulse Dialing

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Display Dialed Number

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Ring Detector Circuitry, Variable Frequency

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Speech Circuitry

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Subscriber Line Interface Power Circuitry

PANEL 3 – SIP397-3
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Subscriber's Loop Interface Circuit (SLIC) Evaluation

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Pulse-Code Modulation Coder-Decoder (CODEC) IC

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Time-Slot Assignment Circuit (TASC) Evaluation

bulletEvaluation of Fiber Optic Cables

LABORATORY MANUAL
The following list of topics indicates the scope of the material and experimentation provided by this course.

PART I Introduction to Digital Communications

  1. Digital Telephone -- An Overview

  2. Programmable Digital Filters

  3. Compandors and Expanders

  4. The Sample-and-Hold Circuit

  5. Basic Pulse Modulation Techniques

  6. Quantizing of Analog Signals, ADC/DAC

PART II The Subscriber Telephone

  1. The Subscriber's Loop and Signaling

  2. Tone Dialing (DTMF) and Pulse Dialers

  3. Electronic Ringers

  4. Telephone Set Voice Circuitry

  5. Digital Data Transmission - Modems

PART III The Central Office, Subscriber's Card

  1. Subscriber's Loop Interface Circuit - SLIC

  2. Pulse-Code Modulation and CODEC

  3. Delta Modulation

  4. Line Coding of Digital Transmission and TSAC

  5. Telecommunications via Fiber Optic Cables

PART IV Digitized Speech

  1. Synthetic Speech and Speech Recognition

REQUIRED EXTRA EQUIPMENT
Power Supply Base, S300PSB, 120/240 VAC, 50/60 Hz
Power Panel Base, S300PB, with Connector Cable

OPTIONAL EQUIPMENT
Photometer, Visual S375

TOTAL WEIGHT
Approximately 8.0 lbs/3.6 Kg without the Power Supply Base and Panel Base. With both of these items included, the total weight is approximately 16 lbs/7.3 Kg.

ORDERING INFORMATION
The Digital Communications and Telephones course, complete with the three insertion panels described above, telephone handset, DTMF keypad, 1/2 meter fiber optic cable, SH4001 Fiber Optic Cable, 3 m, no connectors, EH4001 Fiber Optic Cable, 3 m, no connectors, and comprehensive manual, can be obtained by ordering part number SIP397A.

NOTE: A Power Supply Base, S300PSB, and Panel Base, S300PB, should also be ordered if not already available.