It331: Technology Infrastructure

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You have been asked to design a LAN with operation over a distance of about 100m. Compare and contrast twisted pair cable, coaxial cable, fiber-optics, and wireless for this application. You should create a table or flow chart which would facilitate choosing between these options depending on circumstances. The table or flow chart should be submitted as part of your document. You may not submit a separate file.

Twisted Pair Cable
Media TypeCoaxial CableWirelessFiber Optics UTP STP Maximum Segment Length(Thicknet)
500 m
(Thinnet)
185 m802.11a=60ft
802.11b=92m
802.llg=300ft
802.11n=900ft plus(single mode)
10 km and
Farther
(multimode)
2 km and
farther100 m 100 m
Speed10 Mbps to
100 Mbps Slower speeds compared to cable(single mode)
100 Mbps to
100 Gbps
(multimode)
100 Mbps to
9.92 Gbps10 Mbps to
1000 Mbps10 Mbps to
100 Mbps
CostRelatively
inexpensive,
but more
costly than
UTP Can be much more cost effective than buying and installing cablesExpensiveLeast expensiveNot expensive but more
expensive
than UTP
AdvantagesLess susceptible
to EMI
interference
than other types
of copper media Slower, more interference, and can be unstableCannot be tapped, so
security is
better; can be
used over great
distances; is not
susceptible to
EMI; has a
higher data rate
than coaxial and
twisted-pair
cableEasy to install;
widely available
and widely usedReduced
crosstalk; more
resistant to EMI
than Thinnet or
UTP
Disadvantages(Thicknet)
Difficult to work
With, limited bandwidth (Thinnet);
entire
network can crash if cable is damaged
It is difficult to
terminateSusceptible to
interference; can
cover only a
limited distanceDifficult to work
with; can cover
only a limited
distance

2. An entrepreneur is interested in establishing her own world-wide satellite radio infrastructure and has requested your help. Describe and justify the infrastructure that you would develop....
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