1. CRIMPING PROCESS
Akshay N Mahajan(120573116004)5th
sem IT Page1
1. What is Crimping tool?
A crimping tool is a tool designed to crimp or connect a connector to the end of a cable.
For example, network cables and phone cables are created using a crimping tool to
connect the RJ-45 and RJ-11 connectors to the end of the cable. In the below example
picture, this crimper is capable of crimping a RJ-11 (6-Pin) and RJ-45 (8-Pin) connectors
and also includes a wire cutter near the handles that can be used to cut phone or CAT5
cable[1]
.
To use this crimping tool, each wire is first placed into the connector. Once all the wires
are in the jack, the connectors with wires are placed into the crimping tool, and the
handles are squeezed together.
Crimping makes the plastic connector puncture and hold each of the wires, which
prevents the wires from falling out and for data to be transmitted from the connector to
each of the wires[1]
.
Fig.1Crimper with RJ-45
Fig.2 Cable and RJ-45 Connector [2]

2. CRIMPING PROCESS
Akshay N Mahajan(120573116004)5th
sem IT Page2
2. Wire Color Scheme:
Table1. Wire Color Scheme[3]
Patch Cable Pin Color Diagram
(Straight Through) 1. Orange / White
Both ends follow this
2. Orange
3. Green / White
format. 4. Blue
5. Blue / White
6. Green
7. Brown / White
8. Brown
Crossover Cable Pin Color Diagram
One end as a patch cable
1. Green / White
2. Green
and the other as follows 3. Orange / White
4. Blue
5. Blue / White
6. Orange
7. Brown / White
8. Brown
3. Steps for Crimping
RJ-45 connectors are normally used in telephone and network cables. Occasionally they
are used for serial network connections. When the RJ-45 connectors first came into use,
they were primarily used for telephones. The great advances in technology created a need
for another size connector and the RJ-45 was adapted to fit. Today there are 2 different
RJ-45 connector sizes available, 1 for Cat 5 cable and 1 for Cat 6 cable. The user has to
make sure they have the one suited to their job. The easiest way to tell them apart is to
compare them side by side. The Cat 6 connector is larger than the Cat 5 connector. Below
are instructions for crimping RJ-45 connectors to a cable[2]
.

3. CRIMPING PROCESS
Akshay N Mahajan(120573116004)5th
sem IT Page3
Step1:-
Purchase your cable and your RJ-45 connectors. Most Ethernet cable is sold on spools of
varying lengths, so you might have to measure and cut the amount you need when you get
home[2]
.
Step 2:-
Carefully remove the outer jacket of the cable. Be careful when stripping the jacket as to
not nick or cut the internal wiring. One good way to do this is to cut lengthwise with snips
or a knife along the side of the cable, away from you, about an inch toward the open end.
This reduces the risk of nicking the wires' insulation. Locate the string inside with the
wires, or if no string is found, use the wires themselves to unzip the sheath of the cable by
holding the sheath in one hand and pulling sideways with the string or wire. Cut away the
unzipped sheath and cut the twisted pairs about 1 1/4" (30 mm). You will notice 8 wires
twisted in 4 pairs. Each pair will have one wire of a certain color and another wire that is
white with a colored stripe matching its partner
Step 3:-
Inspect the newly revealed wires for any cuts or scrapes that expose the copper wire
inside.If you have breached the protective sheath of any wire, you will need to cut the
entire segment of wires off and start over at step one. Exposed copper wire will lead to
cross-talk, poor performance or no connectivity at all. It is important that the jacket for all
network cables remains intact.
Fig.3Folding pair [2]
Step 4:-
Untwist the pairs so they will lay flat between your fingers. The white piece of thread can
be cut off even with the jacket and disposed (see Warnings). For easier handling, cut the
wires so that they are 3/4" (19 mm) long from the base of the jacket and even in length.

4. CRIMPING PROCESS
Akshay N Mahajan(120573116004)5th
sem IT Page4
Step 5:-
Arrange the wires based on the wiring specifications you are following. There are two
methods set by the TIA, 568A and 568B. Which one you use will depend on what is being
connected. A straight-through cable is used to connect two different-layer devices (e.g. a
hub and a PC). Two like devices normally require a cross-over cable. The difference
between the two is that a straight-through cable has both ends wired identically with
568B, while a cross-over cable has one end wired 568A and the other end wired 568B.[2]
For our demonstration in the following steps, we will use 568B, but the instructions can
easily be adapted to 568A.
568B - Put the wires in the following order, from left to right:
 white orange
 orange
 white green
 blue
 white blue
 green
 white brown
 brown
568A - from left to right:
 white/green
 green
 white/orange
 blue
 white/blue
 orange
 white/brown
 brown
Step 6:-
You can also use the mnemonic 1-2-3-6/3-6-1-2 to remember which wires are switched.

5. CRIMPING PROCESS
Akshay N Mahajan(120573116004)5th
sem IT Page5
Fig.4 Types of Cable Arrangement
Step 7:-
Trim the untwisted wires to a suitable length by holding the RJ-45 connector next to the
wires. The insulation on the cable should be just inside the bottom of the RJ-45 connector.
The wires should be trimmed so that they line up evenly with the top of the RJ-45
connector[2]
Fig.5Cutting the wires [2]
Trim the wires in small increments, checking frequently to ensure a correct fit. It's better
to cut the untwisted wires a few times than have to go back and start all over again
because you trimmed off too much.
Fig.6Checking the wires [2]

6. CRIMPING PROCESS
Akshay N Mahajan(120573116004)5th
sem IT Page6
Step 8:-
Insert the wires into the RJ-45 connector, making sure that they stay aligned and each
color goes into its appropriate channel. Make sure that each wire goes all the way to the
top of the RJ-45 connector. If you don't make these checks, you will find that your newly
crimped RJ-45 connector is useless[2]
.
Fig.7Insert into RJ-45 [2]
Step 9:-
Use the crimping tool to crimp the RJ-45 connector to the cable by pressing the jacket and
cable into the connector so that the wedge at the bottom of the connector is pressed into
the jacket. Recrimp the cable once more to ensure proper connection[2]
.
Fig.8Crimping tool [2]
Step 10:-
Repeat all of the above steps with the other end of the cable. The way you wire the other
end (568A or 568B) will depend on whether you're making a straight-through, rollover, or
cross-over cable
Step 11:-
Test the cable to ensure that it will function in the field. Miss-wired and incomplete
network cables could lead to headaches down the road. In addition, with power-over

7. CRIMPING PROCESS
Akshay N Mahajan(120573116004)5th
sem IT Page7
Ethernet (PoE) making its way into the market place, crossed wire pairs could lead to
physical damage of computers or phone system equipment, making it even more crucial
that the pairs are in the correct order. A simple cable tester can quickly verify that
information for you. Should you not have a network cable tester on hand, simply test
connectivity pin to pin.
Fig.9Cable tester [2]

8. CRIMPING PROCESS
Akshay N Mahajan(120573116004)5th
sem IT Page8
Conclusion
In this report gives us to what is crimping Tool means a tool designed to crimp or connect
a connector to the end of a cable. For example, network cables and phone cables are
created using a crimping tool to connect the RJ-45 and RJ-11 connectors to the end of the
cable. To use this crimping tool, each wire is first placed into the connector. Crimping
makes the plastic connector puncture and hold each of the wires, which prevents the wires
from falling out and for data to be transmitted from the connector to each of the wires.
And this report gives steps for Crimping process.

9. CRIMPING PROCESS
Akshay N Mahajan(120573116004)5th
sem IT Page9
References
1. http://www.computerhope.com/jargon/c/crimp.htm
2. http://www.wikihow.com/Crimp-Rj45
3. http://vspclil-physicallayer.wikispaces.com/file/view/StudentExam.PDF