Section 6 Flashcards
Structured cabling
defines how we install cabling, 3 big components: telecommunication closet, has a horizontal run to your work area
Patch panels terminate one end of the horizontal run
Patch cable uses stranded core. Connect switches to path panels and computers to wall outlets
TIA Standards
how to wire crimps, how many wall outlets, etc.
110 punchdowns to terminate horizontal runs
RJ-45 crimps are used only on Patch Cables
Main Distribution Frame
Primary equipment room. Patch panel on the top, below is the primary switch, below that is a router. U (1 ¾ in. is a standard height for components in a rack). Equipment racks are 19 in.
Demarc
separates what’s owned by the phone/cable company and what’s yours.
Demarc extension
if you have offices in a building. Where the separation takes place
(OLD)66- punchdown block
would have a pair of wires that would run to each individual phone. Fading out due to VOIP etc
Fiber Optic uses a Fiber distribution panel. Uses a fiber switch.
Wiremap
tests wires to make sure the wires are in the right order.
Continuity
Make sure the wires are even punched in and in the right order
How to measure distance?
Distance is measured with a Time Domain Reflectometer (TDR). OTDR is used for fiber optic
TIA
horizontal runs less than 90m
Too much crosstalk prevents a cable from working at a particular level
Verify Link lights on both the workstation and the switch
Loopback
RJ-45 connects pin 1 to 3 and 4 to 6
Voltage Monitor
watches the voltage over time
