1. Students understand network cables
types and features of each one . Agenda
• 5 min Act1 Warm up motivating video
• 5 min Act2 essential question brain storm
• 15 min Act3 Introduction teacher demonstrate about cables
• 10 min Act4 – TPS Searching about network cables types and features of each one
• 10 min Act5 – Distributing samples and pictures of different cables types and then
asking questions.
• 10 min Act6 - Teacher demonstrate “Network cables”
• 10 min Act7 – brain storm “installing network cables”
• 10 min Act8 - listen installing network cables video then asking questions .
• Home work
• 5 min Act8 Reflection
Osama Ghandour Geris
Assiut STEM School
1
6. Warm up
5 Min motivating video
Activity 1
Essential Questions
7. Essential Questions
•Why use Cables in networks ? Brain storm
•How to design and select suitable cable
types for computer / audio / video / tv
networks?
•What are the tools , devices , cables and
information which a network engineer
should has for installing a network ?
Activity 2
11. Connecting Coaxial Cables
Thin coax (also known as 10Base2)
Thin coax looks like the copper
coaxial cabling that's often used
to connect a Video Recorder to
a TV.
12. These are really only suitable for audio
frequencies.
the jacks are color-coded as follows: red (audio-Right), black or
white (audio-Left) and yellow (composite video)
Connecting Coaxial Cables
13. Connecting Coaxial Cables
The BNC was designed for military use and has gained wide
acceptance in video and RF applications to 2 GHz
You will find these connectors on the front of some network analyzers.
16. Internal Components of Coaxial Cables -
Types of Coaxial Cables - Connectors used with
coaxial Cables
17. Internal Components of Coaxial Cables - Types of
Coaxial Cables - Connectors used with coaxial Cables
Osama Ghandour Geris
Assiut STEM School
18. Front-end and back-end are terms used to characterize program interfaces
and services relative to the initial user of these interfaces and services
What is a Decibel?
A decibel (dB) is a unit used to express relative
differences in signal strength. A decibel is expressed as
the base 10 logarithm of the ratio of the power of two
signals, as shown here:
dB = 10 x Log10 (P1/P2)
where Log10 is the base 10 logarithm, and P1
and P2 are the powers to be compared.
19. What is a Decibel?
Note: Log10 is different from the Neparian
Logarithm (Ln or LN) base e logarithm.
You can also express signal amplitude in dB.
Power is proportional to the square of the
amplitude of a signal. Therefore, dB is expressed
as: dB = 20 x Log10 (V1/V2)
where V1 and V2 are the amplitudes to be
compared.
dBm = dB milliwatt = 10 x Log10 (Power in mW / 1 mW)
10 mW = 10 mW/1mW=10 = 10 dBm = 10 x Log10 (10)
20. AxB
x dB = 10 x Log10(A) + 10 x
Log10(B)
2 3 dB = 10 x Log10 (2)
A/B
x dB = 10 x Log10(A) - 10 x
Log10(B)
4 6 dB = 10 x Log10 (4)
1/A
x dB = + 10 x Log10 (1/A) = - 10 x
Log10 (A)
10 10 dB = 10 x Log10 (10)
0,01 - 20 dB = - 10 x Log10(100) 20
13 dB = 10 x (Log10 (10) +
Log10 (2))
0,1 - 10 dB = 10 x Log10 (1) 100 20 dB = 10 x Log10 (100)
1 0 dB = 10 x Log10 (1) 1000 30 dB = 10 x Log10 (1000)
What is a Decibel? X=𝟏𝟎(𝒚)
y= 𝐥𝐨𝐠 𝟏𝟎 𝒙
23. How could to know about network cables ?
10 min
•Example Movie
Ask or call a
college
Ask a
teacher Ask or call an expert
or an engineer
Search through search
engine such as google
or Bing for ppt or pdf
files using your laptop
or smart phone through
internet connection
Search through
YouTube
Search through wiki
Beddia
Activity 4
Osama Ghandour Geris
Assiut STEM School
23
25. Twisted Pair Cables
(also known as 10BaseT). 10BaseT
cabling looks like ordinary
telephone wire, except that it has 8
wires inside
instead of 4
cable cannot exceed 325 feet or 100 m
in length.
Cat5e cable, with a standard
connector, known as an RJ-45
connector.
26. Connecting Twisted Pair Cables
10BaseT cabling is available in different grades or categories. Some grades,
or "cats", are required for Fast Ethernet networks, while others are
perfectly
acceptable for standard 10Mbps networks--and less expensive, too. All new
networks use a minimum of standard unshielded twisted-pair (UTP)
Category 5e 10BaseT cabling because it offers a performance advantage
over lower grades.
Activity 6 10 min
27. Connecting Twisted Pair Cables
The baud rate is the rate at which
information is transferred in a
communication channel. In the serial
port context, "9600 baud" means that
the serial port is capable of transferring
a maximum of 9600 bits per second.
Osama Ghandour Geris
Assiut STEM School
32. The following summarizes the features of UTP cable:
- Speed and throughput—10 to 1000 Mbps - Average cost per node—Least expensive
- Media and connector size—Small - Maximum cable length—100 m (short)
Commonly used types of UTP cabling are as follows:
• Category 1—Used for telephone communications. Not suitable for transmitting data.
• Cat 2—Capable of transmitting data at speeds up to 4 megabits per second (Mbps).
• Category 3—Used in 10BASE-T networks. Can transmit data at speeds up to 10 Mbps.
• Category 4—Used in Token Ring networks. Can transmit data at speeds up to 16 Mbps.
• Category 5—Can transmit data at speeds up to 100 Mbps.
• Cat 5e —Used in networks running at speeds up to 1000 Mbps or 1 Gbps.
• Category 6—Typically, Category 6 cable consists of four pairs of 24 American Wire
Gauge (AWG) copper wires. Category 6 cable is currently the fastest standard for UTP ,
with Cat6 STP data can travel with 10 Gbps .
33. Shielded Twisted-Pair Cable
(STP) cable combines the techniques of shielding,
cancellation, and wire twisting. Each pair of wires is
wrapped in a metallic foil . The four pairs of wires then
are wrapped in an overall metallic braid or foil, usually
150-ohm cable. As specified for use in Ethernet
network installations, STP reduces electrical noise both
within the cable (pair-to-pair coupling, or crosstalk)
and from outside the cable (EMI and RFI).
34. Although STPprevents interference better than
UTP, it is more expensive and difficult to install.
In addition, the metallic shielding must be grounded
at both ends. If it is improperly grounded, the shield
acts like an antenna and picks up unwanted signals.
Because of its cost and difficulty with termination,
STP is rarely used in Ethernet networks. STP is
primarily used in Europe.
37. The following summarizes the features of STP cable:
- Speed —10 to 100 Mbps - Average cost Moderately expensive
- Media and connector size—Medium to large
• Maximum cable length—100 m (short)
When comparing UTP and STP, keep the following points in mind:
• The speed of both types of cable is usually satisfactory for LAN
• These are the least-expensive media for data communication. UTP
is less expensive than STP.
• Because most buildings are already wired with UTP, many
transmission standards are adapted to use it, to avoid costly
rewiring with an alternative cable type.
40. Internal Components of Fiber Optic Cables
- Connectors used with Fiber Optic
Osama Ghandour Geris
41. Single Mode Fiber Optic Cable
has a small diametral core that allows only
one mode of light to propagate. Because of
this, the number of light reflections
created as the light passes through the
core decreases, lowering attenuation and
creating the ability for the signal to travel
further. This application is typically used
in long distance, higher bandwidth runs
by Telcos, CATV companies, and Colleges
and Universities , Ex 1Gps for length of
1000m.
usually 9/125 in construction. This means
that the core to cladding diameter ratio is
9 microns to 125 microns.
Multimode Fiber Optic Cable
usually 62.5/125 in construction.
This means that the core to cladding
diameter ratio is 62.5 microns to 125
microns.
has a large diametral core that allows multiple
modes of light to propagate. So , the number of
light reflections created as the light passes
through the core increases, creating the ability
for more data to pass through at a given time.
Because of the high dispersion and attenuation
rate with this type of fiber, the quality of the
signal is reduced over long distances. This
application is typically used for short distance,
data and audio/video applications in LANs. RF
broadband signals, Ex 10Gps for length of 550m.
Types Of Fiber Optic Cables
SMF MMF
42. a "LC" connector in fiber optics referred to as . Lucent Connector related to Alcatel Lucent
Other cables and connectors for your general knowledge
43. MT-RJ IEEE 1394 RJ11 USB 2.0
Osama Ghandour Geris
Assiut STEM School
Other cables and connectors for your general knowledge
44. brain storm “installing network cables”
•Practical Network Systems
Work in a group of 3/4 students , Write in
a paper What are the tools , devices ,
cables and information which a network
engineer should has for installing a
network ? 10 min
Activity 7
10 min
48. CCNA
Certified Computer Network Administrator
this Certificate from Cisco company
www.netacade.com
Osama Ghandour Geris
Assiut STEM School
49. Osama Ghandour Geris
Assiut STEM School
49
Do your best ,
engage , have
a good
attitude ,
present and
practice in
Computer Lab.
to win this
certificate.
50. 5 min Reflection
• What is your goal to accomplish in
next week End Using one type of
networks cable ?
Osama Ghandour Geris
Assiut STEM School
50
Activity 8
51. Home work
•provide a summary comparison
between coaxial , Twisted Pair and
Fiber Optic Cables .
•Solve the on line quiz about
network cables types and its
features .
Osama Ghandour Geris
Assiut STEM School
51
