Module 4: Cable Testing
Overview
Much of the terminology used in this module is invaluable. It is broadly applicable to copper, optical, and wireless networking systems. Cisco products are particularly focused on Layers 2 through 4, so the certification reflects some of this emphasis. Details about cable testing are not on the CCNA certification exam. However, it is an important background for understanding the Layer 1 troubleshooting issues that industry repeatedly indicates are a primary concern of CCNA-certified personnel.  Estimates range as high as 70 percent of CCNA-level troubleshooting tasks involve the physical medium and OSI Layer 1. Module 4 introduces crucial terminology and concepts for understanding frequency-based cable testing, important in understanding both copper cablesand optical fiber.
 

Module 4 Caution
The mathematics in this module do not need to be mastered. However, some students may be intimidated. The physics of crosstalk is not obvious. There are insufficient graphics used to describe the cable-testing lesson.  Students completing this module should be able to perform the following tasks:

• Differentiate between sine waves and square waves
• Describe exponents and logarithms
• Describe decibels
• Define basic terminology related to time, frequency, and noise
• Differentiate between digital bandwidth and analog bandwidth
• Compare and contrast noise levels on various types of cabling
• Define and describe the affects of attenuation and impedance mismatch
• Define crosstalk, near-end crosstalk, far-end crosstalk, and power sum near-end crosstalk
• Describe how crosstalk and twisted pairs help reduce noise
• Describe the ten copper cable tests defined in TIA/EIA-568-B
• Describe the difference between Category 5 and Category 6 cable

4.1 Background for Studying Frequency-Based Cable Testing
Essential labs: none
Optional labs: none
Core TIs: 4.1.2, 4.1.6

4.2 Signals and Noise
Essential labs: 4.2.11a
Optional labs: 4.2.11b, 4.2.11c, and 4.2.11d
Core TIs: 4.2.4 and 4.2.5

Reading to be Done:

READ MODULE 4 ON LINE

There are interactive media options available at the end of some of the pages.  It would be helpful TO YOU if you attempted these.  The quizzes are also a good option.  They give you an idea of what to expect on the test.

Review the following Powerpoints

HFCC PowerPoint

Cisco Powerpoint - Part 1

Cisco Powerpoint - Part 2

Other Documents to be Read/Reviewed: 

Chapter Text in Word Format

Writing Assignments:  see due dates

Module 4 Study Guide - print, complete and hand in  - discussed answers in class

Module 4 Revision Guide - read from the screen; write answers on piece of paper; hand in

Module 4 Practice Exam Questions - read from the screen; write answers on piece of paper; hand in

Labs Required:

DO NOT PRINT LABS IN MY ROOM--PLEASE.  I have 10 labs books, please use these as reference or look up via the curriculum.

Quiz:  Test your knowledge

Tests:  Module 4 - on line