Ethernet, Fiber, Copper Flashcards
(39 cards)
What does the following describe?
Most popular, standard, universal
many different types, speeds, cabling, connectors, equipment
Most modern ethernet uses twisted pair of copper or fiber
Ethernet
What is 802.3
IEEE Ethernet standard
What does the following describe?
Transmission by light
No RF signal, difficult to tap
Transmission over long distances
Immune to RF interference
Laser beams can replace light for extremely long distances
Fiber
What type of cabling is the following signal referring to
trasmit+ transmit- / receive+ receive-
Twisted Pair Copper Cabling
Why is the twist important in twisted pair?
the twist keeps a single wire moving away from the other to prevent interference.
Pairs in a cable will have different twist rates as well
Coaxial Cable
two or more forms share a common axis
RG-6 used in television/digital cable, high speed intenet over cable
Two inner conductors in a cable is known as
Twinaxial cable
lower cost than fiber
lower latency than twisted pair
What’s the space between the ceiling and the false ceiling below it?
Plenum space, which contains air vents and electrical wiring.
What type of jacket is on most traditional cables?
PVC
What type of jacket is required on plenum rated cable?
FEP or low smoke PVC
What is a challenge with plenum rated cable?
not as flexible
Transceiver is a combination of what two words
transmitter and receiver, usually combined into a single component
modular interface, add the transceiver that matches your network
Are ethernet channel and fiber channel tranceivers interchangeable?
no
What is SFP?
Small Form-factor Pluggable
If you have a 10 gb connection, what SFP are you using?
SFP+, SFP only supports up to 1gbit/s
SFP+ supports up to 16gbit/s
How can we maximize space when using SFP connectors?
use a QSFP, Quad Small Form-factor Pluggable, which is a 4 channel SFP quadrupling the throughput
What tranceiver types are these?
SFP/SFP+ and QSFP/QSFP+
what type of connector is an SC Connector?
Subscriber Connector, Square Connector, Standard Connector
How to SC connectors install and uninstall?
push to lock, pull shroud to unlock.
what type of connector is this and what is it used for?
SC Connector for fiber optics.
Why are SC Connectors often combined into a pair?
One will be transmit, the other will be receive
What connector is this and what it is used for?
LC- Local Connector, fiber connector.
What are the differences between SC and LC connectors?
LC is smaller
What are 2 other names for LC - local connectors?
Little and Lucent
