Information and Communication Technology (ICET)
CNET124
Network Technologies
Lab #1: Building a Network Cable
Version 1 – January 2012
Lab Overview
In this lab you will build and test three common types of UTP network cables:
1. Straight –through
2. Crossover
3. Rollover (console)
These cables will be used for subsequent labs in this course.
Pre-lab Preparation
Before starting this lab please read it in its entirety and then review the following online resources. ad resources
Read:
DUX Computer Digest http://duxcw.com/digest/Howto/network/cable/cable1.htm p://duxcw.com/digest/Howto/network/cable/cable1.htm (read the entire article)
Watch:
How to terminate Cat5e Cable - Heads, Keystones, Crossover, etc http://www.youtube.com/watch?v=k4B4Sep3Qpg&feature=related Introduction
One of the more common tasks that a network technician/technologist may be involved with is the running of a new network cable to a device or the repair of one that has been damaged. Although there are a variety of different cable types and connectors, this task normally involves terminating unshielded twisted pair (UTP) cable (Figure 1) at either an RJ45 plug (Figure 2) or a Keystone jack (Figure 3).
Figure 1: UTP Cable
Figure 2: RJ45 Plug
Figure 3: Keystone Jack
Properly terminated Keystone jacks (Figure 4) are used at patch panels and wall outlets (Figure 5) to simplify the task of connecting network devices. UTP patch cables (Figure 6) are used to connect these network devices to the jack.
Figure 4: Keystone jack with UTP
Figure 5: Wall Outlet
Figure 6: UTP patch cable
Network cables must be carefully constructed to allow reliable communication to occur between devices. An improperly constructed cable can exhibit such things as impedance mismatch, high attenuation and crosstalk, all of which can lead to a reduced data carrying capacity. When new cabling