Crimping LAN Cables

Ethernet cable types

There are 3 types of Cables.

1. Straight Through Cables

If we want to connect two different types of device then we can use straight-through cables.
For example:
> Connecting a router to a hub
> Connecting a computer to a switch/router
> Connecting a modem to a router

2. Crossover Cables

If we want to connect two same types of device then we can use crossover cables.
For example:
> Connecting a computer to a computer
> Connecting a router to a router
> Connecting a switch to a switch
> Connecting a hub to a hub

3. Rollover Cables

This cables is used to connect computer to router’s console port.It is also called as console cable or yost cable.

Ethernet Cable Type

In computer networks, Cat-5, Cat-5e, and Cat-6 cables are mostly used. UTP cables are connected by RJ45 connectors.
Cable Type and  Speed
CAT 3 16Mbps
CAT 5 100Mbps 1000Mbps (4 pairs)
CAT 5E 1000Mbps
CAT 6 Up to 400MHz for super-fast broadband applications
Cat 7 cabling is also known as Class F.

We will use  “Cat 6” cables for now.

Crimping tool rj45

1)  rj45 Plug/Jack

2)  Ethernet cable

3)  LAN wire cutter

4)  rj45 Crimping tool

5)  rj45 Network LAN cable tester

How to make Ethernet cable

1. Take your LAN Cable and strip the outer cover be carefully in doing this or else the internal wire will be damage.

2. There will be 4 pair of twisted wire.

3. Unwind the twist cable and make it straight and cut the edge of wire.

4. Trim all the wires to the same length

5. Insert the wires into the RJ45 plug – make sure each wire is fully inserted to the front of the RJ45 plug and in the correct order.

6. Now your LAN cable is ready you may now test the cable sing LAN tester.

Note :
T568A and T568B are the two different colour codes used for pairing cable.
T568B is mostly used one.

Crimping a Straight through cable :

Arrange all wire in the below manner and cut the edge ,be careful in doing so.Both end of cable must have same sequence of colored wire,please refer the below image.

Both End of wire arrangement in cable is same.

Now insert the cable into jack and then crimp the cable using crimping tool
So now we crimped one side of the cable.so we can repeat the step for another side of cable.

Crimping a Crossover cable :

Arrange the cable as shown in below image .

Both End of wire arrangement in cable is different.

Now insert the cable into jack and then crimp the cable using crimping tool
So now we crimped one side of the cable.so we can repeat the step for another side of cable.

Now cable is ready to use,You can test your cable using ” LAN Cable Tester” too.

Please Note :
With Auto-MDIX (Medium Dependant Interface Crossover) in PC’s/Motherboard straight through cable or a crossover cable can be used for PC-PC connection.