Assembly,Category,Solid,Strand technology Assembly of a Category 5/5e Solid or Stranded RJ45 Plug
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Assembly of a Category 5/5e Solid or Stranded RJ45 PlugTwisted pair cables such as CAT5, CAT5e, CAT6 and CAT6a cable are a low cost and easy installation alternative to traditional coax cables for transmitting KVM and AV signals. KVM (keyboard-video-mouse) extenders via CAT5 may be used to remove computers from harsh or sensitive environments, or to restrict physical access to the computer. Video extension products such as VGA, DVI, S-Video or HDTV extenders via CAT5 are used to extend video displays. Each extender consists of two units - the local and remote units, which are interconnected using a CAT5/5e/6 cable.This article focuses on the proper method for terminating a CAT5/5e unshielded solid or stranded cable using standard tools and materials that are readily available. With the proper use of the tools and a little practice you will be terminating CAT5/5e cables in no time.Prepare the cableYou will first need CAT5/5e cable (solid or stranded for the purposes of this article) cut to the desired length. The cable can be terminated before or after installation, even if you have a long run to make. Using a cable tester from VPI (www.vpi.us) the cable can be easily tested for continuity, crossed pairs and pinouts to make sure all connections have been made properly. Next you will need to make sure you have the correct plugs to terminate the cable with. Different plugs are intended to different types of cable, whether you have solid or stranded connectors, flat or round cable, shielded or unshielded, and CAT5, 5e, 6, or 6a. Be sure to use a plug suitable for your cable. For tools you need a CAT5 wire stripper, wire cutters, RJ45 crimp tool, and a CAT5 cable tester. Terminate the cableFirst, carefully strip the jacketing from the cable to expose 1" of the insulated wire conductors. Dont cut too deeply or you will knick the wire insulation underneath. If you just score the cable jacket and bend the wire in several directions to finish the break, the result will be a good problem-free cut. Next, untwist the wires all the way to the jacket edge (but not beyond) and arrange them according to TIA/EIA 568A or 568B standards. Carefully flatten the wires and align them for insertion into the plug. Make a straight cut across all wires to ensure the ends are of equal length, leaving approximately ½ of the wire sticking out from the jacket edge. The plug has small openings in it, one for each conductor. The wires must be placed in the proper order for either the TIA/EIA 568A or 568B standard. Hold the RJ45 plug in front of you with the locking tab down, cable opening towards you. Orient the wires so connector pin 1 aligns with cable wire 1, pin 2 aligns with cable wire 2, etc. Pin 1 is on the far left with the plug held as described. Slide the wires into the RJ45 plug. The cable jacket should extend into the connector about 1/4" for strain relief.Using the RJ45 crimp tool, crimp the assembled termination to make it permanent. Firmly squeeze the handles to set the contacts and secure the plug. Once crimped, the termination should be tight and very difficult to remove. Test the cableUse the CAT5 cable tester to check your work. The tester will indicate proper continuity (complete connection end-to-end), make sure the pairs have been matched up properly, and that the pinout is according to the selected wire standard. If an end is wired incorrectly, the tester will indicate which end is incorrect. Simply cut off the end and try again. Be sure to see more articles about CAT5 cable termination available from VPI. Other types of cable require slightly different procedures, so not all of the details for the cable you want to terminate will be covered in this article.
Assembly,Category,Solid,Strand