Media and Connectors Flashcards
1.5, 5.5
IEEE 802.3 Standard
■ Defines physical and data link layers, including MAC, for wired Ethernet
networks
■ Commonly used in Local Area Networks (LANs)
Twisted Pair Cables
■ A type of wiring in which two conductors of a single circuit are twisted
together
■ Twisting reduces electromagnetic interference and crosstalk
Unshielded Twisted Pair (UTP)
● Composed of pairs of wires twisted together without additional
shielding being added to the cable
● Lightweight, flexible, and cost-effective
Shielded Twisted Pair (STP)
● Includes shielding for better EMI protection
● More expensive, bulkier, and more difficult to install
CAT 5
100 Mbps at 100 meters
CAT 5e
1Gbps at 100 meters
CAT 6
1Gbps at 100 meters; 10 Gbps at 55 meters
CAT 6a
10 Gbps at 100 meters
CAT 7
10 Gbps at 100 meters
CAT 8
10-25 or 40 Gbps at 30 meters
RG-6
1 Gbps at 300 meters
● Used to support faster internet speed in most residential
installations
● Standard for modern coaxial cable
● Supports up to 1 Gbps at up to around 300-meter distance
Twinaxial
10 Gbps or more at 10 meters
● Often a component of DAC assembly
● Considered as another specialized form of cabling
● Two insulated copper conductors
● Used in SFP+ and QSFP applications
● Supports 10 Gbps to 100 Gbps, up to 100 meters
DAC
● Fixed assembly copper cabling for short distances
● Connects switches, routers, or servers
100 Gbps at 15 meters (active cables); 100 Gbps at 7 meters
(passive cables)
Plenum vs. Non-Plenum Cables
■ Plenum – Fire-retardant, suitable for air circulation spaces
■ Non-Plenum – Less fire-resistant, used where fire risk is lower
■ Plenum meets strict fire safety standards of NFPA and NEC
RJ-11
for voice-based communication networks (telephones)
● Standard for telephone wiring
● 6P2C configuration (6 positions, 2 conductors)
● Smaller size
● Not suitable for high-speed data transmission