Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
35 Cards in this Set
- Front
- Back
|
Point to Point Protocol (PPP)
|
Used in Dial up connections, serial links, mobile phone, and DSL.We can setup authentication, compression, error detection, and multilink.
|
|
|
Multilink PPP
|
Multiple point to point links. Increases bandwidth but requires additional hardware such as RJ45 connections.
|
|
|
Cellular networks
|
Called cellular because we separate land into cells. Provides 2G networks. It was built for voice but not data.
|
|
|
Modern Networks
|
LTE – Long Term Evolution Used for both voice and data. This is a 4G network. This refers to higher speeds. Based on GSM/EDGE.
|
|
|
WiMAX Worldwide interoperability for microwave access
|
Located nowadays in homes and workplaces. 30 miles signal radius. “Wi-Fi on steroids.” Fixed WiMAX IEEE 802.16 Mobile WiMAX IEEE 802.16e-2005
|
|
|
T1 /E1
|
T-Carrier Level 1. 24 channels. Usually found in North America, Japan, and South Korea. E-Carrier Level 1. 32 Channels. Found in Europe. T-Carrier and E-Carrier Level 3. Superior to level 1. Delivered on coax connectors. T-3 has 28 T1 circuits. E-3 has 16 E1 circuits.
|
|
|
Metro Ethernet
|
Connection in a city/metropolitan with Ethernets at each site.
|
|
|
Circuit Switching
|
Building a connection between two places to send data. Nobody can use the circuit when it is in use. Like a phone call. An inefficient use of resources. POTS plain old telephone service.
|
|
|
Packet Switching
|
Superior to circuit switching.Data is grouped into packets.Data is shared so multiple people can access it at the same time.DSL, Cable modem, Satellite, and wireless.
|
|
|
RJ11
|
6 positions, 2 conductors (6P2C)
|
|
|
RJ45
|
8P8C Similar in shape to RJ48C which is used in T1/WAN lines.
|
|
|
DB-9 AKA RS-232
|
Built for modems, printers, mice but they now use USB:
|
|
|
Couplers
|
Connects cables together to length the cable run. When this does happen, signal loss to some degree occurs.
|
|
|
BNC connector
|
Used on WAN links.
|
|
|
F-connector
|
Used for cable tv and cable modem: RG-5 Connector.
|
|
|
66 Block
|
A patch panel for analog voice and digital links.Left side is patched to the right.
|
|
|
110 block
|
It is replacing 66 block. Wire-to-wire patch panel. Used for cat 5 and cat 6 cables.
|
|
|
Twisted pair copper cabling.
|
Balanced pair operation-two wires with equal signals. Because they’re twisted they will always be constantly moving away from the interference. Protects against electrostatic interference.
|
|
|
Unshielded Twisted Pair
|
Most common twisted pair cabling.
|
|
|
Shielded Twisted Pair
|
Additional shielding from interference.
|
|
|
Network Cabling Standards
|
Electronic Industries Alliances (EIA) Develops standards for the industry.
|
|
|
Telecommunications Industry Assoc (TIA)
|
Develops standards for market analysis, trade shows, and government affairs.
|
|
|
Plenum
|
An area where air is intermixed with the duct above the ceiling. In which case we’ll have to use a plenum rated cable. This way they don’t burn quickly if there is a fire in the building.
|
|
|
Coaxial cable
|
Two or more forms share a common axis. Found in RG6 and RG59
|
|
|
T568A
|
White-Green, Green, White-Orange, Blue, White-Blue, Orange, White-Brown, Brown.
|
|
|
T568B
|
White-orange, Orange, White-Green, Blue, White-blue, Green ,White-Brown, Brown. This is used much more than the alternative.
|
|
|
Straight tip AKA bayonet connector.
|
Fiber connector.
|
|
|
FC Connector
|
Fiber connector.
|
|
|
Subscriber Connector AKA standard or square connector.
|
Fiber connector.
|
|
|
MT RJ Mechanical transfer registered Jack
|
Fiber connector
|
|
|
Lucient Connector AKA little or local connector
|
Fiber connector
|
|
|
Fiber Couplers AKA fiber connectors.
|
|
|
|
Fiber Cables
|
Transmission by light. It is more secure as it is much more difficult to tap it. Immune to radio interference.
|
|
|
Multimode fiber
|
Short range communication. Up to 2 kilometers. Multi-mode means it hits the ends:
|
|
|
Single-mode fiber
|
Long range communication. Up to 100 kilometers. No bouncing off the side. More expensive as a stronger light is needed.
|
