1. ______ represents how much info can be sent at 1 time over a specific cable type, or the measure of info capacity of transmission over a cable.
  2. Bandwidth is the difference between the ______ & ______ frequencies of the transmission, measured in hertz.
    Higest & lowest
  3. Bandwidth is a factor used to ________ cable.
  4. BNC~ British Naval Connector
    Is the connector used w/ coaxial cables. (tv cabel connector)
  5. Expansion
    Is the ability to increase the size of a network after the inital install. It is a factor used to evaluate cable. Alway leave room to grow like 20%
  6. Fiber Optic Cable how does it transmit
    Uses light to transmin into across a network.
  7. Fiber Optic Cable is made:
    The core of tje cable is made of glass, which is protected by a layer of gel or plastic. The plastic cover surrounds the entire cable.
  8. Hertz (Hz)
    The unit of frequency measurement, which is = to 1 cycle per sec. Pcs & related devices r often measured in kilohertz (kHz= 1,000 Hz), megahertz (mHz= 1,000 kHz), & gigahertz (GHz= 1,000 MHz)
  9. kHz=
    1,000 Hz
  10. MHz=
    1,000 kHz
  11. GHz=
    1,000 MHz
  12. EMI (Electro-Magnetic Interference) is
    • The interference of electri al signals across a cable by oitside electrical or magnetic
    • Devices. It is a factor that is used to evaluate cable. Copy mach is the biggest factor.
  13. What is the biggies EMI thing
    Copy machines
  14. RJ-11
    A registered jack 11 is used fir telephone connectios used on modern telephone lines
  15. RJ-45
    Registered jack 45 is an 8-wire connector used to connect pc to CAT 5 UTP cables in a network.
  16. Signal Attenuation
    Is a factor used to evaluate cable that relates to how long a signal can travel across a cable before the signal becomes too weak to be recognized in a network.
  17. Thin Coaxial Cable is AKA
    ThinNet. 10Base2
  18. ThinNet consists of:
    A copper wire surrounded by the 1st layer of plastic, then a layer of metal mesh & a final layer of protective plastic. It is used for peer-to-peer networking.
  19. What is ThinNet used for?
    Peer-to-peer networking
  20. Thick Coaxial Cable-AKA
    ThickNet 10Base5
  21. Transmission Media is the?
    Physical pathway used to connect 2 or more pcs together as a network & includes air & space in addition to cable
  22. UTP (Unshielded Twisted-Pair Cable is:
    A network cable that consists of up to 4 pairs of wires. Each pair is twisted around each other at diff rates & the entire cable is encased in a protective plastic covering.
  23. Decision Factors in choosing cable for a network: (5)
    • 1. bandwidth
    • 2. attenuation
    • 3. EMI
    • 4. expansion capability of the cable
    • 5. cost
  24. Thin Coaxial Cable AKA?
    ThinNet 10Base2
  25. ThinNet is made of:
    • 1. a core of copper wire surrounded by a layer of plastic
    • 2. a layer of metal mesh
    • 3. an outer protective plastic insulated sheath
  26. ThinNet is used for?
    cable T.V,
  27. desion factors for ThinNet cable
    • 1. max bandwidth 10 mbps
    • 2. EMI significate problems
    • 3. max distance is 185 meters (200 - 15 due to loss b/c of the connectors)
    • 4. expansion is difficult b/c each pc must be comnnected directly on to the cable in a chain fashion AKA bus topology. The cable is thicker and less flexable, best for peer-to-peer networking in a sm workgroup LAN.
  28. 10Base2 ThinNet is best for what type on network?
    peer-to-peer networking in a small workgroup LAN
  29. UTP (Unshilded Twisted-pair Cable) 8 categories designated by the TIA/EIA 568-A standard.
    • 1. CAT 1- telephone cable
    • 2. CAT 2- was use for Token Ring
    • 3. CAT 3- can be used for Ethernet networks, suffers EMI more than CAT 5; 2 twist per foot
    • 4. CAT 4- can be used for Ethernet networks, suffers EMI more than CAT 5; more twist per foot but less than CAT 5
    • 5. CAT 5- used in LAN. most typical connector RJ-45; has a very high twist per foot
    • 6. CAT 5e-
    • 7. CAT 6-
    • 8. CAT 7-
  30. decision factors UTP: CAT 5
    • 1. max bandwith: 100 mbps
    • 2. EMI: is reduced b/c of the amount of twist
    • 3. signal attenuation: max distance is 100 meters
    • 4. expansion issues: the cable is thin & flexible easy to expand, but equipment is needed to boost the signal, which increases the cost of expansion.
    • 5. cost least expensive
  31. CAT 5 UPT cable has _____ pairs of wires?
    • 4
    • 1. 1 orange pair
    • 2. 1 brown pair
    • 3. 1 blue pair
    • 4. 1 green
    • 1 is solid & the other os white w/ a stripe
  32. data network usually use what wiring standard?
    TIA/EIA 568B
  33. T568A Cabling color standard
    • white/green
    • green
    • white/orange
    • blue
    • white/blue
    • orange
    • white/brown
    • brown
  34. T568B cabling standard
    • white/orange
    • orange
    • white/green
    • blue
    • white/blue
    • green
    • white/brown
    • brown
  35. Fiber-Optic Cable uses?
    light pulses rather than electrical signals to transmit info across the network.
  36. Fiber-Optic may be used over miles b/c there is no ___ and the _____ is very high.
    • EMI
    • Bandwidth
  37. Fiber-Optic is usually used for the _____ of a network.
  38. Since glass & plastic cores can be cracked or broken, install requires care. Special ____ equipment is required to locate a break in the fiber optic cable.
  39. Image Upload 2
  40. decision factors fiber optic cable
    • 1. Max Bandwidth 10 Gbps through 1.6 Terabits per second
    • 2. EMI none
    • 3. Signal Attenuation: this is laid over several miles
    • 4. Expansion usually used as the backbone or the main cable of LANs, WANs & MANs
    • 5. most expensive
  41. some experts estimate that ___ % of network failures are primarily cause by what?
    • 70%
    • cable-related problems
  42. Backbone Wiring-
    encompasses all wring between telecommunications closets, equip rooms, & enterence facilities, including all cables, mechanical cable terminations, & intermediate & main cross-connects
  43. Backbone wiring runs between telecommunications closets, equip rooms & entrence facilities on the same floor, from floor to floor, & even between buildings. the main cable that everything collapses to
  44. Horizontal wiring- encompasses all cable from the work-area wallplate or network connectiojn to the telcomm closet. the outlets, cable, & crossconnections in the closet are all part of the horizontal wiring, which gets its name b/c the cable typically runs horizontally above ceilings or along the floor.
  45. The work area- includes all cable components between a
    horizontal-wiring wallplate or LAN outlet & the end-user telecoms
    devices, I.E telephone, data terminals, pcs, modems, ect. Work-area
    components can include connectors, cables, adapters, terminators
  46. An equipment room-
    houses building telecommunications systems such as PBXs, servers, and
    the mechanical terminations of the telecomm wiring system. Considered
    different than a wiring closet because of the complexity of the
    components it contains, an equipment room nonetheless may take the
    place of a building's wiring closet or it may be a separate entity.
  47. Unlike the other five components of premise wiring systems, cabling administration

    isn't a place. It's a thing—a process that includes all aspects of
    premise wiring related to documenting and managing the system, testing
    the system, as well as the architectural plans for the system.
Card Set
all about cabling