Maintenance Technology Level 1

Description:
Maintenance Technology Level 1 takes the student through an in-depth look at network architecture and its components, including active and passive devices, amplifier operation, and power supply circuits. Electrical characteristics of cable including resistance, capacitance, inductance, reactance, and impedance are explored.

Recommended Prerequisite:

  • SCTE·ISBE Broadband Premises Installation and Service

Target Audience:

  • Maintenance Technicians
  • Outside Plant Personnel
  • Plant Technicians

Included in the Course:

  • Engaging and Interactive LightningMod™ to prepare learner for training 
  • In-depth interactive eBook modules 
  • CORTEX™ mobile app to access eBook modules in the field 
  • Apply eBook knowledge with real life experiences in a simulated environment 
    • 3 NetworkSims™ included
  • Module assessments
  • Course final exam
  • SCTE·ISBE course completion certificate
  • 3 recertification units (RUs) towards SCTE·ISBE certification renewal

Requirements for Successful Course Completion:

  • Module quizzes 80% or higher
  • Course final test 80% or higher

You may take the course final test up to 3 times.

Format:

Self-paced interactive Online Course: Learners start the SCTE·ISBE VirtuLearn™ course at any time, study at their own pace, and have access to dynamic online content after they register. On average, learners will spend approximately 1 to 2 hours per week over 12 weeks completing course activities. SCTE·ISBE provides access to the course for 3 years from date of purchase.

System Requirements: A high speed Internet (HSI) connection, Internet browser with HTML 5 support. For tablet or smartphone access, HTML 5 may be used for online eBook content.

Course access information will be emailed when the course is purchased.

Course Modules:

Module 01: Network Architecture
Module 02: Electrical Characteristics of Cable
Module 03: Resistance
Module 04: Capacitance
Module 05: Inductance
Module 06: Reactance
Module 07: Impedance
Module 08: Cable Math
Module 09: HFC Active Devices
Module 10: Amplifier Operations
Module 11: Power Supply Circuits
Module 12: HFC Passive Devices
Module 13: Signal Types
Module 14: Return Path
Module 15: Coaxial Cable
Module 16: Modulation and Multiplexing Techniques
Module 17: Intermediate MPEG Compression

Course Learning Objectives:

Module 01: Network Architecture

  • Describe the history of broadband HFC networks
  • Understand conventional coaxial CATV networks
  • Define Hybrid Fiber Coax architecture.
  • Explain regional broadband networks and ring architectures
  • Describe long distance network architectures

Module 02: Electrical Characteristics of Cable

  • Discuss the operational characteristics of coaxial cable
  • Understand 75 ohm characteristic impedance
  • Discuss the relationship between power transfer and impedance
  • Calculate signal attenuation levels
  • Explain how environmental factors affect cable

Module 03: Resistance

  • Explain the electrical concept of resistance
  • Describe how resistance is related to voltage and current
  • Solve series resistance circuits
  • Solve parallel resistance circuits
  • Explain constant current sinks
  • Describe simple HFC Powering

Module 04: Capacitance

  • Understand the concept of an Electric Field
  • Understand a capacitor and the storage of charge
  • List the functions of dielectric materials
  • Describe capacitor construction

Module 05: Inductance

  • Describe the relationship between electric current and magnetic fields
  • Recognize inductors and energy storage in magnetic fields
  • Describe magnetic cores and permeability
  • Describe mutual inductance
  • Describe the construction and operation of transformers

Module 06: Reactance

  • Understand the basic concept of reactance
  • Calculate inductive reactance and capacitive reactance

Module 07: Impedance

  • Understand the basic concept of reactance and impedance
  • Understand and calculate impedance
  • Solve simple circuits with inductors, resistors and capacitors

Module 08: Cable Math

  • Explain how power is calculated using Joule's and Ohm's Laws.
  • Read Scientific and Engineering notation
  • Explain gain and loss principles.
  • Explain the difference between dBm and dBmV.
  • Explain what an increase in 3 dB means.

 Measuring Ohm's and Joule's law metrics using a VOM/DMM to identify an outage

Module 09: HFC Active Devices

  • List the active devices used in an HFC Network
  • Explain the function of the active devices
  • Name the basic functional blocks inside these active devices

 Test the functional blocks of an active device power supply

Module 10: Amplifier Operations

  • Describe basic HFC architecture
  • Describe the parts of a typical amplifier block diagram
  • Explain the use of Equalizers
  • Explain the use of variable cable compensators
  • Describe intermodulation distortion
  • Describe thermal noise and amplifier noise figure

Module 11: Power Supply Circuits

  • Describe the location and function of line power supplies and line power inserters
  • Describe the purpose of DC power supplies
  • List the functional blocks of a DC power supply and state their function
  • List the additional features of a DC power supply

Module 12: HFC Passive Devices

  • Explain the use and function of passive devices used in the HFC network.
  • Explain the placement of these passive devices, particularly taps, that drive the overall network design and operation

Module 13: Signal Types

  • Describe the characteristics of analog signals in the downstream.
  • Describe the characteristics of digital signals in the downstream.
  • Describe upstream signal types.

Module 14: Return Path

  • List the two-way band plans used in HFC networks
  • Describe the major differences between the downstream and the upstream
  • List the transmission and access methods
  • Describe upstream modulation and data rates

Module 15: Coaxial Cable

  • Discuss the operational characteristics of coaxial cable
  • Understand 75 ohm characteristic impedance
  • Discuss the relationship between power transfer and impedance
  • Calculate signal attenuation levels
  • Explain how environmental factors affect cable

Module 16: Modulation and Multiplexing Techniques

  • Describe the time domain and the frequency domain
  • Explain the need for modulation
  • Describe modulation of analog signals
  • Describe modulation of digital signals

Module 17: Intermediate MPEG Compression

  • Describe the structure of an MPEG packet
  • Discuss how I, P and B frames are used in an MPEG digital video stream
  • Understand the MPEG based tables
  • Explain how PIDs are used in MPEG video
  • Explore profiles and levels found in MPEG video

  Troubleshooting Macroblocking Issues

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