CSS L15 - CRIMPING ETHERNET AND RJ-45
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This document outlines the process of crimping RJ-45 connectors to Ethernet cables as part of a computer networking curriculum. It covers necessary tools, step-by-step instructions for preparing and crimping the cables, and explains the wiring schemes T568A and T568B. The completion of this module enables students to establish network connections using properly crimped cables.
CSS L15 - CRIMPING ETHERNET AND RJ-45
- 1. Computer System Servicing NCII Marvin B. Broñoso CSS Teacher & Traininer mbronoso@gmail.com 0918 697 5164 CRIMPING ETHERNET CABLE AND RJ45
- 2. Learning Competencies . . . At the end of this learning module the student are able to: ○ Crimp Ethernet wire and RJ-45 to establish computer network connection. ○ Understand the differences straight through and crossover type of network cabling. ○ Learn the T568A and T568B pin out of twisted pair wiring.
- 3. CRIMPING RJ45 This lesson module will explain crimping you connector (RJ-45) to a CAT(e) cable. This can be done with one simple to use tool known as RJ-45 crimping tool. It is recommended to use the 3 in 1 tool so that you can strip, cut and crimp all with the same tool.
- 4. STEP 1: After cutting the cable to proper length, the first step is to unsheathe the cable. Using the stripper on your crimping tool, strip the cable back 1” (inch) from the end. Insert the cable into the stripper portion of the crimping tool and squeeze it tight. While squeezed, rotate the crimp tool around the cable a full 360°. Pull away and the sheathing will come off. Outer Sheathe Stripping NOTE: Do not cut the twisted pair wires under the outer sheathe. This may result in a decrease in or no data transfer.
- 5. STEP 2: After stripping the wire, the next step is to untwist the smaller wires and arrange them into the proper wiring scheme for the RJ-45 connector. The recommended scheme for the wiring is 568B. The scheme is as follows: Wire Untwisting and 568B Scheme Arrangement
- 6. STEP 3: Once the wire is arranged to the 568B scheme, it needs to be cut down to fit in the connector. This is easily done with the cutting tool on the 3-in-1 crimping tool. Bring the wires tighter together and cut them down, in an even line, to ½” (inch) from the cut of the sheathing. Wire Preparation for RJ-45 Connector
- 7. STEP 4: With the wires cut to proper length for the RJ-45 connector, the wires are ready to be inserted into the connector. With the RJ-45 connector facing up (securing clip on the underside), Inserting Wires into RJ-45 Connector THIS SIDE UP insert the wires into the connector. Each wire will fit into each of the eight grooves in the connector.
- 8. STEP 4: The wires should be inserted until the sheathingis inside the connector, just beyond the crimp portion of the connector. See the image below for proper insertion. Inserting Wires into RJ-45 Connector NOTE: Make sure that each of the wires is pushed in all the way into the connector. The wires should be easily visible looking into the end of the connector. Improper insertion may result in improper crimping of the pins to the wire.
- 9. STEP 5: Finally, the RJ-45 connector needs to be crimped onto the wire. When this happens, the eight pins (at the end of the connector) are pushed down into the wires below. Insert the connector into the Crimping portion of the crimping tool until the connector cannot go in any further. Crimping and Testing Proper Crimp Squeeze the crimping tool very tightly and release. Squeeze the crimping tool a second time to make sure that all of the pins are pushed down on the connector. When crimping is complete, remove the wire (now with the connector crimped) from the tool and check the pins to make sure that they are all down.
- 10. STEP 5: Crimping and Testing Proper Crimp If the pins are all crimped down, give the connector a slight tug to make sure that it is securely attached to the wire.
- 11. STEP 5: Crimping and Testing Proper Crimp Then you can check the pin connection by using network tester.
- 13. STRAIGHT THROUGH
- 14. CROSSOVER