10th week: cabling
It’s been a
long time....from the previous update....fuhhhh.. =)
We got camp…..holidays…..tournament…..
Dr.Dayang
also gt her stuff to buzy………….
And here
only come a new update….=))
Cabling
-
Not
same with wireless, microwave and satellite.
-
Is
the medium through which information usually moves from 1 network device to other.
-
common
used with LANs.
-
Some
cases, a network will utilize only 1 type of cable, other networks will use a
variety of cable types
Types
of Cables
1.
Unshielded
Twisted Pair (UTP) Cable
© Got four pairs of wires inside jacket.
© Each pair is twisted with different number
of twists per inch to help eliminate interference from adjacent pairs and other
electrical devices.(reduce the interrupt from other call)
© The standard connector for unshielded
twisted pair cabling is an RJ-45 connector
Disadvantages
~ It may be susceptible to radio and
electrical frequency interference.
2.
Shielded
Twisted Pair (STP) Cable
© consists of 2 individual wires
wrapped in a foil shielding to help provide a more reliable data communication.
© suitable for environments with
electrical interference
© extra shielding can make the cables
quite bulky.
© often used on networks using Token
Ring topology.
3.
Coaxial Cable
© has a single copper conductor at its
center.
© metal shield helps to block any
outside interference from fluorescent lights, motors, and other computers
© plastic layer provides insulation
between the center conductor and a braided metal sheild
© The most common type of connector is
the Bayone-Neill-Concelman (BNC) connector
© Different types of adapters are available:
T-connector, barrel connector, and terminator.
4.
Fiber Optic
Cable
© consists a center glass core
surrounded by several layers of protective materials
© It transmits light rather than
electronic signals eliminating the problem of electrical interference.
© ideal for certain environments that
contain a large amount of electrical interference..
© able to transmit signals over much
longer distances than coaxial and twisted pair.
Summary of
Ethernet Cabling
Cable & Topology
By Mhui
