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Cabling

Mar 29

How to make a CAT5/5e/6 Patch Cable

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Materials needed:  CAT5/5e/6 Cable, RJ45 Plugs, Crimping Tool for RJ45 Plugs, RJ45/Network Cable Tester

To make a Patch Cable using CAT5/5e/6 first, using the cable stripper on the crimp tool, strip about 25mm of the outer jacket to reveal the 4 twisted pairs being careful not to damage the twisted pairs.  A Stanley knife can also be used if the crimp tool does not have a cable stripper. 

Arrange the four twisted pairs as follows from left to right:  Orange White, Orange, Green White, Blue, Blue White, Green, Brown White, Brown. 

Straighten the pairs as much as possible whilst keeping them arranged correctly.  Once the pairs are straightened, trim them down to about 10mm, or enough to allow the RJ45 Wedge to grip the Cable Jacket when crimped, and insert into your RJ45 Plug with Orange White being in Pin Terminal One, Orange being in Pin Terminal Two, Green White in Pin Terminal Three and so on, making sure each of the pairs go into the correct Pin Terminal.

You can now use you crimp tool to crimp the RJ45 Plugs pins into the pairs and the RJ45 Plug wedge onto the jacket of the Cable.

RJ45 pins and pair arrangement shown below

 

After crimping your RJ45 Plugs to each end of your CAT5/5e/6 Patch Cable you’ll need to test the cable to make sure it will work correctly. An RJ45 Tester will test the Patch Cable and indicate if there are any problems with your cable.

If there is an issue with the Cable you’ve made the tester will indicated which end and which pin isn’t working correctly.

Mar 28

How to make a BNC Cable using RG59

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Materials Needed: RG59 Coaxial Cable, BNC Plugs, Coaxial Cable Stripping Tool, BNC Crimp Tool.

 

To make up a BNC cable first, using your cable stripping tool, strip about 20mm of the black outer cover from the cable exposing the copper braid, inner insulation and centre conductor.  Next place the BNC Ferrule onto the cable.  Then fold the copper braid backwards onto the black outer cover to reveal the white insulating material.  About 4mm of the white insulating material should now be removed and the centre pin of the BNC placed onto the centre conductor.  Using your BNC crimping tool, crimp the centre pin onto the centre conductor.  Now the BNC plug can be placed onto the cable, allowing the centre pin to be inserted through the BNC plug.  You should hear a click once the centre pin is inserted properly, be a snug fit and the BNC plug should hold the white insulating material.  You can now fold the copper braid over the BNC, place the ferrule over the copper braid and crimp using your crimp tool.  If any copper braid is still showing, it can be trimmed away with an appropriate tool.

 

The below image will show you how to attach a crimp-on BNC Connector to a RG59 Coaxial Cable.

Mar 27

RJ45 Wiring for CAT5/CAT5e/CAT6 Cable & RJ45 Jack Sockets

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RJ45 Wiring for CAT5/5e/6

Cabling transmits information, and to get that information to where it needs to go the correct connections must be make to an RJ45 connector.  The cable run needs to terminate into a connector, and that connector needs a jack to plug into.  The Registered Jack 45 (RJ45) is a standard type of physical connector for networking cables used widely in networking.  Modern Ethernet cables feature a small plastic plug on each end of the cable.  That plug is inserted into the RJ45 jacks of Ethernet devices. 

RJ45 plugs feature eight (8) pins to which the copper cores of a cable interface electrically.  Each plug has eight locations (positions), spaced about 1mm apart.  Individual wires are inserted using special cable crimping tools.

Wiring for a RJ45 plug is shown below.

 
 

Wiring for RJ45 Jack Sockets

The RJ45 port is the network port on a computer.  This socket has many names.  It is also known as the Ethernet port, the network adapter, the network jack or the RJ45 jack.  A “port” is another name for a socket on a computer, as is “jack.” The RJ45 port is wired directly onto the network adapter inside the computer, and so is the cable interface to that device.  In this instance you will be wiring an RJ45 Wall Socket.  To wire your cable into the socket use an IDC insertion tool to insert each wire core into it’s corresponding terminal.

Wiring for RJ45 Jack Sockets is shown below.

 

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