Lesson Notes By Weeks and Term - Senior Secondary 3

Network cables and connectors

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Term: 1st Term

Week: 7

Class: Senior Secondary School 3

Age: 17 years

Duration: 40 minutes of 2 periods each

Date:

Subject:      Computer Studies and ICT

Topic:-       Network cables and connectors

SPECIFIC OBJECTIVES: At the end of the lesson, pupils should be able to

  1. Define network connectors
  2. Discuss the types of network connectors
  3. Give examples of computer cables
  4. Differentiate between a male and a female connectors

INSTRUCTIONAL TECHNIQUES: Identification, explanation, questions and answers, demonstration, videos from source

INSTRUCTIONAL MATERIALS: Videos, loud speaker, pictures, Data Processing for senior Secondary Education by Hiit Plc, WAPB Computer Studies for Senior Secondary III by Adekunle et al, On-line Materials.

INSTRUCTIONAL PROCEDURES

PERIOD 1-2

PRESENTATION

TEACHER’S ACTIVITY

STUDENT’S ACTIVITY

STEP 1

INTRODUCTION

The teacher reviews the previous lesson on network cables

Students pay attention

STEP 2

EXPLANATION

He defines network connectors. He lists and explains each type of network connector 

 

Students pay attention and participates

STEP 3

DEMONSTRATION

He gives examples of cables and states what they are used for. He also differentiates between the male and female connectors

Students pay attention and participate

STEP 4

NOTE TAKING

The teacher writes a summarized note on the board

The students copy the note in their books

 

NOTE

NETWORK CONNECTORS

A network connector is a conductive device for joining electrical circuits together.

Types of Connector

  1. Registered Jacks
  2. RJ 45 connector
  3. RJ 11 Connectors
  4. Coaxial connectors
  5. T-connectors

 

1. Register Jacks

The naming convention for Register jacks is RJ-xx, where xx is a two digit number. The two digits indicate the types interface and the area of its application. For example RJ 11, RJ 14 and RJ 25 are used for terminating telephone lines, whereas RJ 45 is used in computer networking.

 

a. RJ 45 connector

 

This is a plastic connector that looks like a large telephone style connector. A slot allows the RJ 45 to be inserted only one way.

b. RJ 11 connector

The RJ 11 is the most common phone jack that is in use today. RJ 11 connectors are used to terminate phone lines, and are typically deployed with single line POTS (plain Old Telephone Service) telephone jacks.

 

  1. Coaxial Cables Connector

The most common types of connector used with coaxial cable is the Bayone-Neill-Concelman (BNC) connector.

 

  1. T-connector

 

BNC T-connectors are female devices for connecting three cables together. It is usually in the shape of a capital T.

 

Computer Cables and Connectors

Computer cables include the following:

  1. Power cable
  2. Data cable
  3. Printer cable
  4. Monitor cable
  5. Serial cable
  6. Universal Serial Bus (USB)

 

Power cable 

A power cable or main cable is a cord that temporary connects an electrical appliances like computer to the distribution circuits of an electrical power source via a wall socket or extension cord.

 

Data Cable

Data cables are used to transmit information between system bus and peripheral devices.

Printer cable

 

Printer cable is used to connect a parallel printer to the parallel port on a PC. A parallel port is a type of interface found on computer for connecting various peripheral devices.

 

Monitor cable

 

A monitor cable is a cable used to transmit video signals

 

Serial cable 

 

A serial cable is a cable used to transfer information between two devices using a serial communication protocol.

 

 

Computer Connector 

 

There are generally two types of connectors name male and female.

The gender of a connector is easy to determine.

  1. A male connector has one or more protrusions that couple with a female receptacle. The male has “pins” which stick out. Good examples of male connectors are power plugs and coaxial cable.

 

  1. The female has holes, or receptacles contacts.

Virtually all of the receptacles (USB, RCA, and Ethernet connectors) on a computer are female.

 

EVALUATION:    1. Define network connectors

  1. List and explain the different types of network                    connectors
  2. Give some examples of cables and state what they are                    used for
  3. Differentiate between a male and a female connector

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively