Shared Flashcard Set

Details

2.1
Cables and Connectors
31
Computer Science
Post-Graduate
01/11/2017

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Cards

Term
Which type of networking cable is also referred to as "thinnet"?
Definition
RG-58
Term
What is the maximum transmission speed of thinnet cables?
Definition
10 Mbps using BASEband transmission up to 185 meters in length
Term
Which type of networking cable is also referred to as "thicknet"?
Definition
RG-8
Term
What are T586A, T568B, and T568C?
Definition
Commercial cabling standards
Term
What is T568A used in?
Definition
Commercial buildings and cabling systems that support data networks, voice, and video.
Term
What does T568B define?
Definition
The standards for preferred cable types that provide the minimm acceptable performance levels for home-based networks, including:
-100-ohm twisted pair cable
-Shielded twisted pair cable
-Optical fiber cable
Term
Where is T568C designed to be?
Definition
In both home and commercial buildings and in multiple locations and to provide full support for all modern and future communications needs
Term
What is the most common type of fiber optic connector and where are they frequently used?
Definition
Straight tip (ST) and network patch panels
Term
What are ST connectors physical characteristics?
Definition
Straight, ceramic pin and bayonet lug lockdown
Term
Describe subscriber connectors or standard connectors (SC) and where are they often used?
Definition
-They are box-shaped connectors that snap into a receptacle
-They are often used in a duplex configuration where two fibers are terminated into two SC connectors that are molded together
Term
What are coaxial cables defining feature?
Definition
They feature a central conductor surrounded by braided or foil shielding
Term
On a coaxial cables, what does the central conductor do and what does the outer shield do?
Definition
The data signal is transmitted on the central conductor and the outer shielding serves to reduce electromagnetic interference
Term
Define fiber optic cables?
Definition
They are a type of network cable in which the core is one or more glass or plastic strands
Term
How thick is the core of fiber optic cables and what is surrounding by and what does it do?
Definition
-Between 5 and 100 microns
-Cladding which relects light back to the core in patterns determined by the transmission mode
Term
What two basic types of twisted pair cables are there?
Definition
Unshielded twisted pair (UTP) and shielded twisted pair (STP)
Term
What types of connectors are found at the end of fiber optic cables?
Definition
-Straight Tip (ST)
-Face Contact (FC)
-Local Connector (LC)
-Sub Multi Assembly or Sub Miniature type A (SMA)
-Mechanical Transfer Registered Jack or Fiber Jack (MT-RJ)
Term
How many pins are found the end of a RJ-11 cable?
Definition
Either 4 or 6
Term
What is the purpose of a RJ-11 cable?
Definition
Connecting telephone systems
Term
What is a RG-59 cable used for and what kind of connectors does it use?
Definition
Cable television and it use BNC and F connectors
Term
What is an RJ-45 connector cable used for?
Definition
Networking
Term
How many pins does a RJ-45 have and what is it often referred to as?
Definition
8 and Ethernet cable
Term
What type of cable is used to connect a cable modem to a wall jack that provides a signal from a cable provider?
Definition
An RG-6 cable with an F-connector
Term
What is a CAT-6 cable used for?
Definition
Networking, between computers or devices in a network, but not between the cable modem and the wall jack
Term
What are RG-6 cables largely used for?
Definition
To route television signals throughout homes and connect devices such as set-top boxes and cable modems
Term
What is the most defining quality of a face contact (FC) fiber optic connector?
Definition
It features a heavy duty ferrule in the center for more mechanical stability
Term
Where are FC connectors likely to be used?
Definition
In industrial setting in which greater strength is required
Term
In which type of situation would a sub-multi-assembly (SMA) fiber optic cable be particularly useful?
Definition
In situations where water or other environmental factors require a waterproof connection
Term
What is one of the local connectors (LC) defining characteristics and what can it be used for and what are its physical characteristics?
Definition
They are a fiber optic connector that uses a latching mechanism similar to that of a RJ-45 connector, and can be used to transition installions from twisted pair copper cabling to fiber and for both single-mode and multi-mode fiber.
-It features a small ceramic ferrule connector
Term
What do straight tip (ST) connectors look like?
Definition
BNC connectors with a straight, ceramic center pin and bayonet lug lockdown
Term
What do SMA connectors use?
Definition
A threaded ferrule on the outside to lock the connector in place
Term
What do face contact (FC) connectors use?
Definition
A heavy duty ferrule in the center for more mechanical stability than SMA or ST connectors
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