Network 1
Lab Report
Straight Through Patch cable
Crossover cable
By Jordi Vicens
Definitions:
Straight through patch cable- a type of twisted pair copper wire cable for LAN use for which the RJ-45 connectors at each end have the same pinout. Use to connect computer to hub.
Crossover cable- a type of twisted pair copper wire used to connect like devices such two hubs or two computers.
http://www.linfo.org/straight-through_cable.html
http://www.home-network-help.com/straight.html
Introduction:
The students were to make either a straight-through cable or a crossover cable for 10BaseT, 100BaseTX, and 100BaseT network. The difference between the two cables being, the straight-through cable connects the computer to a hub, and the crossover cable connects two computer together.
Procedure:
To construct the cable one will need 2 RJ-45 connectors, a RJ-45 crimping tool, UTP cable stripper, and 3 foot length of standard Category 5 UTP cable.
When the student has all the required materials he takes his cable and use the cable stripper to remove about ½ in. of the cable’s insulating jacket, leaving the inner wires intact and uncovered. When he is sure they are intact and undamaged he untwist the inner wires and he puts them in order for either the straight-through cable or the crossover cable, depending on which cable he’s making and which type of wiring he is using as stated on the graph on the previous page. When the inner cables are sorted well the student may cut of the ends of the inner wire so they are straight and so that they are about ½ in. from the insulating jacket so the jacket itself can fit neatly in the connector. Once that is done carefully put the cables in the RJ-45 connector so that the wires will connect with the pins in the connector. After that, the student uses the crimping tool to carefully crimp the connector shut on the cable in a way that all the inner wires are connected to the appropriate pin. When this is all done on both sides of the cable, we use a tester to make sure the wires are properly connected. Once they are proven that they are properly connected, u have an Ethernet cable.
Discussion:
When we started this project, the cables never initially worked. The main issue was when crimping the connectors, the wires would get lose and disconnect from the pins with nothing to hold them in place. We resolved this by using different RJ-45 connectors that have borders in them to hold the separate wires in place on the pins. This resolved the initial problem we had and succeeded in making our cables.
Conclusion:
I did real world testing with two cables I made using the network at my father’s ship. The first cable used, which was made prior to the change in connectors used, showed negative results in function. The reason for this was because of the connectors where the wires inside couldn’t be secured to the pins, leading to lose wires and faulty connection. I then use the cable made with the changed RJ-45 connectors. The cable showed positive result. The new connectors had borders inside for each wire to guide them to and secure them to the proper pins. This cable was more stable and had no faulty connections, therefor it was a success. It is the little details that can greatly affect the strength of the cable.
The students were to make either a straight-through cable or a crossover cable for 10BaseT, 100BaseTX, and 100BaseT network. The difference between the two cables being, the straight-through cable connects the computer to a hub, and the crossover cable connects two computer together.
Procedure:
To construct the cable one will need 2 RJ-45 connectors, a RJ-45 crimping tool, UTP cable stripper, and 3 foot length of standard Category 5 UTP cable.
When the student has all the required materials he takes his cable and use the cable stripper to remove about ½ in. of the cable’s insulating jacket, leaving the inner wires intact and uncovered. When he is sure they are intact and undamaged he untwist the inner wires and he puts them in order for either the straight-through cable or the crossover cable, depending on which cable he’s making and which type of wiring he is using as stated on the graph on the previous page. When the inner cables are sorted well the student may cut of the ends of the inner wire so they are straight and so that they are about ½ in. from the insulating jacket so the jacket itself can fit neatly in the connector. Once that is done carefully put the cables in the RJ-45 connector so that the wires will connect with the pins in the connector. After that, the student uses the crimping tool to carefully crimp the connector shut on the cable in a way that all the inner wires are connected to the appropriate pin. When this is all done on both sides of the cable, we use a tester to make sure the wires are properly connected. Once they are proven that they are properly connected, u have an Ethernet cable.
Discussion:
When we started this project, the cables never initially worked. The main issue was when crimping the connectors, the wires would get lose and disconnect from the pins with nothing to hold them in place. We resolved this by using different RJ-45 connectors that have borders in them to hold the separate wires in place on the pins. This resolved the initial problem we had and succeeded in making our cables.
Conclusion:
I did real world testing with two cables I made using the network at my father’s ship. The first cable used, which was made prior to the change in connectors used, showed negative results in function. The reason for this was because of the connectors where the wires inside couldn’t be secured to the pins, leading to lose wires and faulty connection. I then use the cable made with the changed RJ-45 connectors. The cable showed positive result. The new connectors had borders inside for each wire to guide them to and secure them to the proper pins. This cable was more stable and had no faulty connections, therefor it was a success. It is the little details that can greatly affect the strength of the cable.