to Telcommunication Cable
Here you will learn about submarine communication
cable, amplifiers, repeaters, fiber optics
,telecommunicaion network and fiber optic
cable companies. Submarine communication
cables are the fiber optical cables and
are used for the cross Atlantic communications.
Submarine cables are consisting of fiber
optics and electrical conductive tube
that is used to transfer the electrical
signals between the repeaters. Repeaters
are the network communication and telecommunication
devices that are used to amplify the signals.
Repeaters operate at the physical layer
of the OSI layers model and work with
the physical signals. Submarine fiber
optical cables are less susceptible to
failure and are very high transmission
cables. Submarine fiber optical cables
are usually laid 1m under the sea. A great
research and planning is required to install
the submarine fiber optic cables. Fiber
optic cable is a light weight cable, 13
cm in diameter and consists of a bunch
of glass fibers that are cable of transmitting
the light. So the data is transferred
at the speed of light through the fiber
optic cables. Normally the submarine cables
are not installed on the area where the
fishing and ship activities are more.
Because ship anchor and shipping vessels
can be the problem for the submarine cables.
Submarine telecommunication cable is a
cable that is used for the telecommunication
between the countries across the world.
With the passage of time, the submarine
cables have advancements and new technologies
and communication devices are being used
in the telecommunication. Submarine telecommunication
cables with the high amplifier can transmit
data and signals at more than 5 GB per
seconds. Submarine cables were first used
for the telegraphic transmission between
the countries, then for telephone and
then for data communication. Today, fiber
optic submarine cable is the backbone
of the whole internet. In case of any
damage to the submarine cables the whole
communication system can be greatly affected.
The international cable protection committee
was established in 1958 in London to protect
the submarine cables.
This committee is funded by the member
fiber optic cable operators and the main
responsibilities of this committee to
protect the submarine communication cable.
Earlier telecommunication submarine cables
were not using repeaters so there were
great bandwidth problems. In 1980 fiber
optical was developed it uses the optical
amplifiers to transmit the signals at
a very high speed. Submarine power cables
are running for supplying the electrical
power. Fishing, anchoring and shark fish
bites can cause the damage to the cables
and the damaged portion of the cable is
brought to the surface for repairing purposes.
The installation and the repairing cost
of the submarine cables is very high.
These cables are laid in the seabed by
the cable lying ships. These ships are
owned and operated by the wireless and
big telecommunication companies around
the world. The optical fibers in the fiber
optic are used as a sensor to measure
heat, pressure and temperature.
Fibers are made up of transparent plastic
and glass to pass the light at a very
high speed. Earthquakes are also the cause
of the damage for the communication cables
and a major Tsunami earthquake in December
2004, in the Indian Ocean caused big damages
to the underlying telecommunication cables.
Telecommunication cables have a large
network across the world. Some of the
major submarine cable companies of the
world are Apollo, Pan American Crossing,
Pacific Rim East, Japan-US, Columbus II,
Columbus III, RJK, Eastern Caribbean fiber
system and many other companies.