Lab Projects



Lab Projects

Lab project 14.2

The T1 standard for data communication was developed by AT&T in the 1960s. T1 leased lines offer the same data rate as symmetric DSL (1.544 Mbps). A T1 line typically costs $1000 USD or more per month. So-called fractional T1 lines, starting at 128 Kbps, reduce this cost somewhat and can be found in some apartment buildings and hotels where they provide residential Internet access.

T3 lines are a common aggregation of 28 T1 circuits that yields 44.736 Mbps total network bandwidth. Besides being used for long-distance traffic, T3 lines are also often used to build the core of a business network at its headquarters. A T3 line typically costs more than $3000 USD per month.

Compare T1, T3 and DSL Connections

A T1 Line produces a high speed Internet connection, operating at about 1.5 million bits per second. Most T1 users are small and medium sized businesses whose employees use the Internet in large capacities. Many computers can be connected to a T1 network without affecting the speed or reliability of the connection. Although the T1 line would be nice for home use because of its speed and ability to send and receive large files, it is rare that people have a working T1 line in their homes because of the unnecessary amount of bandwidth and high costs.

A T1 line works digitally to transmit information over the Internet and provide a high speed connection to computers in the network. It uses 23 channels with pulse code modulation signals to provide the speedy and reliable connection to the network.

T3 lines are incredibly fast Internet connections, operating at 45 million bits per second. Most T3 lines are used by very large companies and universities with high traffic. Many computers can be connected to the Internet at the same time without the speed being affected with a T3 line. Additionally, T3 lines support the transmission of very large files over the Internet, such as videos and large databases.

DSL, also known as Digital Subscriber Line, provides a high speed Internet connection that operates through digital signals being sent over telephone lines. Even though the connection works over the phone line, it does not tie up or interfere with the phone line. The bandwidth that is available through phone lines has a much larger capacity than is typically used, therefore, a DSL line can send out digital pulses through the extra frequency that is not being used.

Lab project 5.2

ItemsPrice with shipping cost

RJ-45 Connector $14

LC-SC Duplex Multimode 50/125 Fiber Optic Cable (32.8ft) $16

SC/ST Multimode Duplex Fiber Optic Cable | 50/125 | 15 meter $11

MTRJ - Multimode - Duplex - 62.5/125 - 3 meter (10 foot) $5.95

LC/SC Multimode Duplex Fiber Optic Cable | 50/125 | 30 meter $16

Lab project 5.3

E-TBT-FRL-05

10BASE-T (RJ-45) [100 m/328 ft.]

10BASE-FL 850nm multimode (ST)

[2 km/1.2 mi.] Link Budget: 13.5 dB

E-TBT-FRL-05(SC)

10BASE-T (RJ-45) [100 m/328 ft.]

10BASE-FL 850nm multimode (SC)

[2 km/1.2 mi.] Link Budget: 13.5 dB

E-TBT-FRL-05(L)

10BASE-T (RJ-45) [100 m/328 ft.]

10BASE-FL 1300nm MM (ST)

[5 km/3.1 mi.] Link Budget: ...