Teacher Applicant: Ian James R.Bagunas Course: BS in Electronics and Computer Technology UAN: T15217028 A Detailed Lesson Plan in Computer Systems Serving NC II (TVL Track) I. OBJECTIVES: At the end of the lesson, the students should be able to: Identify the steps in creating a straight-through cable. Create a straight-through cable using T568B standard. II. SUBJECT MATTER: A. Topic: Network Cabling: Straight-through Cables Setting-Up Computer Networks (SUCN) Code: TLE_IACSS9- 12SUCN-IVa-j-33 B. References: Department of Education. K to 12 ICT – Computer Systems Servicing (NC II) Curriculum Guide p. 21 (May 2016) Color Codes - http://www.ciscopress.com/articles/article.asp?p=2092245&seqNum=3 Cabling, Internetworking Fundamental – Students’ Manual pp. 60-77 C. Materials: laptop, DLP/LCD projector, UTP cable, RJ-45 connector, crimping tool, network cable tester D. Values: Patience, obedience, safety III. LEARNING ACTIVITIES Teacher’s Activity Student’s Activity A. Preliminary Activities 1. Prayer One student will lead the prayer. (“Our father…”) 2. Building of Rapport Good morning class. Good morning sir. How are you? We’re doing great sir. Are you ready for our lesson today? Yes sir. 3. Checking of Attendance The teacher will call the student A student assigned by the teacher to check assigned to check the class attendance. the attendance will check the attendance of the class. 4. Checking of assignment Class, kindly get your assignment and let’s check it altogether. Directions: Identify what network cabling tool or material is being referred to in the following items. Students will answer: 1. It is used to check if the network Network cable tester cable being spliced or terminated is functional. 2. A tool used to crimp UTP cable to Crimping tool RJ-45 connector. 3. An eight-wire connector used to connect computers to Category 5 RJ-45 connector UTP cables in a network. 4. A tool used to remove the outer jacket or insulation of the UTP Wire stripper cable. 5. Review of the past lesson Class, can you still remember our past lesson? Yes sir. What was our past lesson all about? It’s about the different network cabling Very good! tools sir. Now, can you give me some examples of these tools and materials? UTP, RJ-45, network cable tester, crimping tool, wire stripper and punch Very good! down tool. B. Motivation Class kindly settle down and put your attention to the front as I play this short video clip. At the end of the video clip I will ask you some questions. Is that clear? Yes sir. A video clip about computer networks will The students watch the video clip. be shown on the projector. After showing the video clip, the teacher will ask the students. Class, what can you say about the video clip It is all about how the computer networks you have just watched? connect and work. Yes, it’s all about computer networks, how computers connect and work. How do computers connect physically? We will find out them in today’s lesson. C. Lesson Proper (Using slideshow presentation) Alright, before we proceed to our main topic, let us define some terms as we will encounter them throughout the discussion. Ethernet cable – a network cable used to Students will read the definition connect devices on local area networks such as PCs, routers, and switches. Computer network – is composed of two or Students will read the definition more computers that share data and resources. Crimping – process joining two pieces of Students will read the definition metal (usually a wire and a metal plate) by deforming one or both of them to hold the other. Hub – used as the central object on which computers and other devices are connected. Students will read the definition Local Area Network (LAN) – a group of interconnected computers that are under the Students will read the definition same administrative control. Pin - piece of metal used to fasten two things Students will read the definition. together. Today, we will be discussing about LAN/Ethernet cabling. Particularly, the straight-through cabling. We will also be discussing when to use and how to create a straight-through cable. Ethernet/LAN Cabling - the process of Students will read the definition. creating cable used to create a network that interconnects computers and other network devices. Alright, Ethernet/LAN cabling is the process of creating cables used to connect a network. Now, there are two types of Ethernet/LAN cables, and what are these? Types of Ethernet/LAN Cables 1. Straight-through Cable 2. Crossover Cable Now, there are two types of Ethernet/LAN cables. The first one is straight-through cable and the other is the crossover cable. But for this session, we will be focusing on the straight- through cable. So, what is a straight-through cable? Straight-through cable - a type of twisted pair Students will read the definition. cable that is used in local area networks to connect a computer to a network hub such as a router. It is said that the straight-through cable is used to connect a computer to a network hub such as a router. Therefore, when do we use straight- through cable? The teacher will give examples of the instances that a straight-through cable will be used. Class, these are the connections that use straight-through cable. Now, class from these examples, what have you observed? Straight-through cables are used to connect different devices. Very good. Rule of Thumb: We use straight-through cable when connecting two different devices. Alright, you know when to use straight-through cable. The next thing is, how do you create a straight-through cable? Now, when terminating or splicing a straight- through cable we have to follow industry standards. There are two color combination standards used in creating a straight-through cable. The first is the T568A and the other one is the T568B color combination. So, for instance, if we use T568A on one side of the cable we also use the same code on the other side. Did you get it? Yes sir Color Codes for Terminating a Straight- through Cable 1. T568A 2. T568B T568A T568B However, it is a common practice in the industry that the T568B color code is used for straight-through cables. Which means, we will be using the T568B in creating our straight- through cable, although, T568A can also be used in creating a straight-through cable. Do you understand class? Yes sir. Alright, we already identified what color code will be used for our straight-through cable. Now, I will demonstrate to you how to make a straight through cable. But before making the straight-through cable, let me remind you of the safety precautions. Safety Precautions: Avoid horse playing Use the proper tool Always be on task Be vigilant Am I clear? Yes sir. Now, here are the steps in creating a straight through cable. You should carefully observe as I demonstrate because after this, you will be making your own straight-through cable. Am I understood? Yes sir. The teacher will demonstrate to the class how to create a straight-through cable. Steps in Creating a Straight-through Cable 1. Prepare all materials needed. 2. Remove the outer jacket/insulation of the cable to about one inch. 3. Untwist the cable pairs, spread the wires, and arrange them based on T568B color code. 4. Straighten and flatten the wires between your thumb and forefinger. 5. Trim the untwisted wires to about ½ to ¾ of an inch. 6. The exposed copper pins on the RJ-45 connector must be facing towards you. Ensure that the wires are in order from left to right starting from pin 1. 7. Insert the wire firmly into the RJ-45 connector until all wires are pushed as far as possible into the connector. 8. Visually inspect the cable and ensure the right wire codes match the pin numbers and the eight wires should be pressed firmly against the end of the RJ-45 connector. 9. Place the RJ-45 connector and cable into the crimping tool and crimp the RJ-45 connector until you hear a click from it. 10. Repeat all the previous steps with the other end of the cable. 11. Test the cable using the network cable tester. There you have it. Those are the steps. I have just created a straight-through cable. Were you able to follow the procedure class? Yes sir. Do you have questions or clarifications? No sir. D. Application So, it’s now your turn to make your straight- through cable. You already have your groupings. You also have the tools and materials with you. If you have any questions during the activity, you should raise your hand for you to be recognized. Also, minimize your voice and avoid unnecessary noise while performing the activity. Am I clear? Yes sir The teacher is facilitating the activity. The students are doing the activity. After the activity. Did you enjoy our activity? Yes sir. Did you learn from our topic today? Yes sir. Do you have any questions or clarifications about our topic today? No sir. E. Generalization We use straight-through cable when When do we use a straight-through cable? connecting two different devices. Give an example of a connection that uses Connecting a computer and a router. straight-through cable. What are the 2 color standards used in The color standards used are the T568A straight-through cabling? and T568B. What color standard is commonly used in T568B is the color standard used in a industry in creating a straight-through cable? straight-through cable. What is the color combination of the T568B The color combination is white-orange, color standard starting from pin 1 up to pin 8? orange, white-green, blue, white-blue, green, white-brown, brown. For instance, I use T568B on this end of the T568B sir. cable, what color code will I use on the other end? What are the steps in creating a straight- The students enumerate the steps. through cable? IV. EVALUATION Quiz Directions: The following are some of the steps in making a straight-through cable. The steps are not arranged in order. Arrange each item in order by writing the letter starting from A to E. Write the letters on the space provided. Each item is worth 1 point. ______1. Trim the untwisted wires to about ½ to ¾ of an inch. ______2. Remove the outer jacket/insulation of the cable to about one inch. ______3. Untwist the cable pairs, spread the wires, and arrange them based on T568B color code. ______4. The exposed copper pins on the RJ-45 connector must be facing towards you. Ensure that the wires are in order from left to right starting from pin 1. ______5. Straighten and flatten the wires between your thumb and forefinger. ANSWER KEY: 1. D 2. A 3. B 4. E 5. C V. ASSIGNMENT Directions: The following are some of the steps in making a straight-through cable. The steps are not arranged in order. Arrange each item in order by writing the letter starting from A to E. Write the letters on the space provided. Each item is worth 1 point. ______1. Place the RJ-45 connector and cable into the crimping tool and crimp the RJ-45 connector until you hear a click from it. ______2. Repeat all the previous steps with the other end of the cable. ______3. Insert the wire firmly into the RJ-45 connector until all wires are pushed as far as possible into the connector. ______4. Test the cable using the network cable tester. ______5. Visually inspect the cable and ensure the right wire codes match the pin numbers and the eight wires should be pressed firmly against the end of the RJ-45 connector. ANSWER KEY: 1. C 2. D 3. A 4. E 5. B