NET+ Class 1/27/10 Week #3

Class started with a review of the OSI model.

What is a OSI model? It is a conceptual model of a network.

Who created it? Internation Standard Organization.

**** NOTE**** the ISO members could not come together to agree to make this a standard.

The purpose is to allow the various networks to communicate with each other.

Next, we discuss the various types of topology,connectors and cable.

Topology (5)

1. bus


2. ring


3. star


4. mesh(2)


5. point-2-multipoint

Connectors (3)

1. BNC


2. T-connect


3. F-type

Cable

1. Coaxical


2. Twisted Pair(3)


3. Fiber Optics

Last we cover TIA/EIA wiring code.

Before the end of class. We had to make our own ethernet cable. We require wire stripping tools, two RJ-11 connectors , a crimping tool and the wiring diagram. To test the cable to see if it works. we had to plug one end into the commputer and the other into the network junction block. If done correctly, the bottom of the screen would show network connection.