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Lab 4

In: Computers and Technology

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Lab 4.1 : Copper Cabling

Exercise 4.1.1
Stability, consistency, and minimization of packet errors.

Exercise 4.1.2
The power requirements to send data is much lower than the requirements to transfer electricity.

Exercise 4.1.3
Protection from power frequency, radio frequency interference, reducing errors generated.

Exercise 4.1.4
CategoryMaximum SpeedApplication

Exercise 4.1.5

Exercise 4.1.6
Coaxial cable conducts electrical signal using an inner conductor (usually a solid copper, stranded copper or copper plated steel wire) surrounded by an insulating layer and all enclosed by a shield, typically one to four layers of woven metallic braid and metallic tape. The cable is protected by an outer insulating jacket. Normally, the shield is kept at ground potential and a voltage is applied to the center conductor to carry electrical signals.

Exercise 4.1.7
The distance limit is 100m for UTP cabling. It is very important that you know exactly how to wire UTP cables. Cabling is the base of a solid network, and doing it correctly the first time will help you avoid hours of frustration and troubleshooting. On the other hand, if you are dealing with a poorly cabled network, this knowledge will help you to find the problem and fix it more efficiently.

Exercise 4.1.8
Cross over cable is used to connect two similar devices 2 computers. The straight cable is used to connect two dissimilar devices computer and switch.

Exercise 4.1.9
S1 and S2 will require a crossover cable.

Exercise 4.1.10
Multimeter – is an electronic device used to measure voltage, current and resistance. (Wal-Mart $17.00.)
Tone Generator – signal generator used to generate an audible frequency signal. (Home Depot $39.00.)
Pair Scanner – Used to test Ethernet cable. (Ebay $100 - $300.)
Time Domain Reflectometer – used to characterize and locate faults in metallic cables. (Zorotools $800.) Lab 4.1 Review
1. To eliminate the crossover issue, lower the amount of equipment and cost. Simplify a network.
2. To increase the maximum distance for a signal. If put after the maximum distance the signal may degrade.
3. The connection and processing speed. It also depends on the number of connections the computer or laptop will allow.

Exercise 4.2.1

There are two common types of fiber optic cables used: Single and multimode. Single mode cable uses one strand of glass fiber. Single mode cabling is used with multi-frequency data transmission and gives a faster speed then multimode. However single mode cable is more expensive. Multimode fiber optic cabling uses two fibers for transmission and reaches speeds of Megabits per second up to Gigabits per second. They are used for medium distances no further than a few kilometers.

Exercise 4.2.1

Copper wire transmits electrical current that would require a large amount of energy to transmit and receive data over distances while fiber optic technology transmits pulses of light generated by a light emitting diode or laser along optical fibers.

Exercise 4.2.3
Because it’s a smaller area for the light to travel down.

Lab Review: 4.2
1. A. Bend Radius: The minimum radius that a fiber optic cable can be bent without loss of light or impairment. A general rule that it be no less than 15 times the cable diameter B. To not affect a signal sent down the line.
2. The core/Glass Filament, Cladding, Buffer, Strengthener and Outer Jacket.

Exercise 4.3.1

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