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 CS601 ASSIGNMENT NO 3S OLUTION FALL 2010

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PostSubject: CS601 ASSIGNMENT NO 3S OLUTION FALL 2010   Fri Jan 07, 2011 3:56 pm

Assignment No. 03

Question 1:
Compare and contrast Twisted pair cable, coaxial cable and optical fiber with respect to
Property of Media, Cost and Bandwidth associated with each? Also discuss the appropriate application of each.

Answer:
Media Type Maximum Segment Length Speed Cost Advantages Disadvantages Application
UTP 100 m 10 Mbps to 1000 Mbps Least expensive Easy to install; widely available and widely used Susceptible to interference; can cover only a limited distance variety of networks, data transitions, telephone network
STP 100 m 10 Mbps to 100 Mbps More expensive than UTP Reduced crosstalk; more resistant to EMI than Thin net or UTP Difficult to work with; can cover only a limited distance business installations, telephone company
Coaxial 500 m (Thicknet)
185 m (Thinnet) 10 Mbps to 100 Mbps Relatively inexpensive, but more costly than UTP Less susceptible to EMI interference than other types of copper media Difficult to work with (Thick net); limited bandwidth; limited application (Thin net); damage to cable can bring down entire network transmission lines, primarily for CATV, video application
Fiber-Optic 10 km and farther (single-mode)
2 km and farther (multimode) 100 Mbps to 100 Gbps (single mode)
100 Mbps to 9.92 Gbps (multimode) Expensive Cannot 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 cable Difficult to terminate Telecommunications, Medical, Networking, Broadcast/CATV








Question 2:
What are the categories newer than CAT5 of Twisted pair cable? What are the specification and application of these?


Answer:
categories newer than CAT5 of Twisted pair cable

Cat5 cables have four pairs of twisted wires that are normally 24 gauge. The twisting helps to minimize electrical interference. Those wires are then covered with a shielding that helps to insulate the wire. The ends of the cable are normally RJ-45 jacks
When a computer connects to the Internet using a high-speed source, it often uses a Cat5 cable to connect either to a router or a modem. Cat5 cables are the cables used to network computers together or wire a single computer to the Internet. These cables are also known as Ethernet cables.
Specification
Data Transfer Speed
Category 5e fast Ethernet cable supports 10 megabit-per-second, 100 Mbps and 1,000 Mbps, or gigabit, data transfer speeds allowing network users to send and receive data over the network at the highest data rate possible. Standard Cat 5 cable will only support data transfer speeds up to 100 Mbps.
Construction
The standard Cat 5 cable which uses eight core pairs of wires that are twisted together to form four twisted pairs.
Propagation Length
Cat 5e cable has a maximum propagation length of 100 meters. A cable run is usually limited to 90 meters with five meters at each end of the run used for patch cable to connect the cable to networked computers. If cable runs greater than 100 meters are necessary, a repeater will have to be installed to extend the length of the cable run to avoid data loss.
Cable Sheath Material
Cat 5e cable can be purchased with several different types of outer sheath material depending on the intended use of the cable. Polyvinyl Chloride, or PVC, sheath is the most common sheath material for Cat 5e cable and is intended for indoor use.


Uses
Cat-5 cable was developed to replace Cat-3 cable, which had limited bandwidth. Cat-5 cable supports speeds up to 100 megabits per second or more and frequencies up to 100 MHz. Cat-5 is used in 10/100 computer networks and Asynchronous Transfer Mode networks.Cat5 cables are mainly used for high speed Internet or computer networking. However, ATMs and many phone lines use Cat5 cables as well. Voice over IP utilizes the high bandwidth of cat5 cables to provide all digital phone service using a data line.




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