Flashcards in Chapter 6: Installing a Physical Network Deck (45):
The set of cabling standards
The central location to which all cabling from individual PCs runs.
All cables run horizontally (for the most part) from the telecommunications room to the PCs
Where the cables go to from the telecommunications room
A single piece of cable that runs from a work area to a telecommunications room
Solid Core Cable
-A cable that uses a single solid wire to transmit signals
-A better conductor than stranded core, but more fragile
Stranded Core Cable
-A cable that uses a bundle of tiny wire strands to transmit signals.
-Not as good of a conductor as solid core, but less fragile
Should horizontal cabling be stranded or solid core?
Intermediate Distribution Frame (IDF)
The more technical name for the telecommunications room
Width of an equipment rack
Size of a unit (U)
A box with a row of female ports in the front and permanent connections in the back to which you connect the horizontal cables.
The most common type of patch panel connector
A tool used to connect UTP to a 110 block
Defines an official naming convention for labeling cables
Short, straight-through UTP cables that use stranded cable.
Where connections from the outside world come into the building.
Network Interface Unit (NIU)
Another term for demarc
A type of NIU that enables ISPs or telephone companies to test for faults in a network, such as disconnections or loopbacks.
Customer Premises Equipment
The primary distribution box and customer-owned/managed equipment that exists on the customer side of the demarc.
Any cabling that runs from the NIU to whatever box is used by the customer as a demarc.
The main patch panel in a telecommunications room.
Main Distribution Frame (MDF)
The room in a building that stores the demarc, telephone cross-connects, and LAN cross-connects.
Location where the cable comes out of the wall at the workstation location
A condition that occurs when signals on a pair of wires within a UTP cable interfere with the signals on another wire pair within that same cable.
Allows electricity to pass between two conductive elements that weren't designed to interact together.
Time Domain Reflectometer (TDR)
An advanced cable tester that tests the length of cables and their continuity or discontinuity, and identifies the location of any discontinuity due to a bend, break, unwanted crimp, and so on.
Electrical signal interference between two cables that in close proximity to each other.
Crosstalk on the opposite end of a cable from the signal's source.
Crosstalk at the same end of a cable from which the signal is being generated.
The degradation of signal over distance for a networking cable.
What unit is signal loss measured in?
A powerful cable testing device used by professional installers to test the electrical characteristics of a cable and then generate a certification report, proving that cable runs pass TIA/EIA standards
Optical Time Domain Reflectometers (OTDR)
Tester for fiber optic cable that determines continuity and reports the location of cable breaks.
Peripheral Component Interconnect (PCI)
The expansion slot which you insert a NIC into.
Two or more NICs in a system working together to act as a single NIC to increase performance.
Link Aggregation Control Protocol (LACP)
Specification of certain features and options to automate the negotiation, management, load balancing, and failure modes of aggregated ports.
An LED on a NIC, hub, or switch that blinks rapidly to show data transfers over the network.
A light on some older NICs that flickers when a network collision is detected.
Sends data out of the NIC and checks to see if it comes back.
Uninterruptible Power Supply (UPS)
A device that supplies continuous clean power to a computer system the whole time the computer is on.
-Continually charges a battery that powers the computer components.
-If the telco room loses power, the computer stays powered up
-Doesn't power the computer unless the power goes out
Connects to a cable and sends an electrical signal along the wire at a certain frequency