Utp & fiber 1

UTP & Fiber Cabling

Internet & Network IntroductionUTP & Fiber Cabling

Structured Cabling Infrastructure


• Mounted and permanent• Components:

Information Outlet with Face PlatePatch PanelUTP CablePatch Cord

I/O & Faceplates


• Faceplate mounts on or in wall or in raceway

• Single or Dual Information Outlet (I/O)

• Provide network connectivity to the Hosts through a Patch Cord

Patch Panel


• Termination punchdown in back

• Patch cord plugin in front

Patch Cord & UTP Connectors


Color codes


• Data Tx: 1 & 2 • Data Rx: 3 & 6• Crossover

1 32 6

• PoE +VDC: 4 & 5 • PoE -VDC: 7 & 8

Cutting, Striping & Crimping Tools


• Make your own patch cords• Cuts and strips pairs• RJ45 end crimped onto ends of wire

Punching Tool


• Terminates wires to back of patch panels and in Information Outlets

Making Cables


Function of RJ45 plug


New (not yet crimpled) connector Crimpled (without cable) connector

Contacts

Place for wires

Triangle shaped piece of plastic

Place for cable jacket

Contacts cut throughinsulation of each wireto make a good electricalconnection

Triangle locks itselfinside the place

for the cable jacket to fasten the cable in

Making Cables (cont.)- Function of RJ45 plug


Don’t forget to put the boots on the cablefirst of all, if you are using them

Strip about 1” (25mm) of the jacket off

Making Cables (cont.)- Step 1



Untwist and reorganize the wires to reflect one of the T568 standards

Cut the wires to have ½” to ¾”(12 to 18mm) from the jacket edge

Place the RJ45 plug on the cable.Be sure to keep the order of the wires!



Gently push the plug onto wires. Make sure, that all the wires are on the end of the plug and the jacket is inside the plug’s space for the jacket. Also look at the wires if they are still in the correct order.



Push the cable end with the plug into the crimpling tool(usually you can hear gentle click sound) and crimpit hard enough to make good connection.

Contacts are gnawed into the wiresPlastic triangle fastens the jacket

Repeat the same steps on the opposite side of the cable, and then test the cable in the cable tester.

Wire Testing Equipment


• Test wire for correct termination of 8 wires• Test for speed capabilities

Cabling Rules


• Try to avoid running cables parallel to power cables.• Do not bend cables to less than four times the diameter of the cable.• If you bundle a group of cables together with cable ties (zip ties), do not

over-cinch them. You should be able to turn the tie with fingers.• Keep cables away from devices which can introduce noise into them. Here's a

short list: copy machines, electric heaters, speakers, printers, TV sets, fluorescent lights, copiers, welding machines, microwave ovens, telephones, fans, elevators, motors, electric ovens, dryers, washing machines, and shop equipment.

• Avoid stretching UTP cables (tension when pulling cables should not exceed 25 LBS).

• Do not run UTP cable outside of a building. It presents a very dangerous lightning hazard!

• Do not use a stapler to secure UTP cables. Use telephone wire/RJ6 coaxial wire hangers which are available at most hardware stores.

Fiber Optic Cabling Infrastructure


• Components:Fiber Cable Fiber PigtailFiber ConnectorsLIU/Fiber Patch PanelCouplerFiber Patch Cord

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Fiber Optic Connectors


• Terminates the fibers• Connects to other fibers or

transmission equipment

LC Multimode Connector

SC Multimode Connector

ST Multimode Connector

Fiber Patch Cords & Pigtails


• Ends are typically either SC or ST• Pigtails have connectors on only

one side and Patch Cords have it on both sides.

• Pigtails are spliced to the fiber to terminate the fiber

• Patch Cord connects switches to the Fiber cable

Singlemode Fiber patch cord SC - LC

Pigtail LC Multimode

Pigtail ST Multimode

Pigtail SC Singlemode

LIU/Fiber Patch Panel & Couplers


LIU

ST Multimode Adaptor

Fibre Patch Panel

SC Duplex MultimodeAdaptor

SC Duplex SinglemodeAdaptor

LC Duplex MultimodeAdaptor

Technology

Utp & fiber 1