Audio Cables
The audio cable is a compact cable used in the audio recording and entertainment
fields, that contains individually shielded pair microphone cables all housed by
one common outer jacket. The inner microphone cables are each pair of insulated,
twisted –pair, multi-strand wires, surrounded by shielding made of foil or tightly
braided wire mesh. The cable may be plenum rated making it strong but that makes
it difficult to handle and roll. More expensive cables use finer wires and wire
braid shield rather than foil and the outer jacket is soft, making it flexible and
easy to roll. Cotton filler runs down the middle of the cable and helps it to maintain
its shape. The cable is normally rolled over and over number of times in a manner
such that when pulled out of the packer, it won’t develop twists.
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Coaxial Cables
A coaxial cable may simply be defined as the kind of copper cable used by cable
TV companies between community antennas and consumers’ homes or business places.
Coaxial cables are also used by telephone companies for connecting telephone lines
to road side poles near users’ home. It has got its wide use in business and corporation
Ethernet and local area networks. The term coaxial is given to the cable because
it includes one physical channel that carries the signal and surrounded by another
concentric physical channel (with a layer of insulation in between), and both running
along the same axis. Number of these cables or pairs of coaxial tubes may be placed
in a single outer sheathing, which can carry information to a great distance. Coaxial
cable was invented in 1929 and commercially used in 1941. Carrier technologies will
differ along with other factors but generally speaking twisted pair copper wire
and optical fiber are alternatives to coaxial cable.
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Custom Cables
Custom made cables and the fundamental question about the benefits of making the
same for specialized applications like medical purposes, aerospace, automotives
etc, is a matter to be given serious consideration and one has to look into the
pros and cons on the subject matter along with elaborate deliberations with knowledgeable
personalities in the industry. A project engineer can choose off the shelf cable-the
manufacturer’s way- and then adapt it to specific needs, or that same engineer can
choose customized cabling designed for a specific purpose – the project engineer’s
way. There are advantages and disadvantages in either of the two options. One has
to review both the cases separately to decide about his choice
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D-Sub Cables
Thousands of D-sub cable assembles are fabricated in America and in other countries,
in all pin configurations. These cable assembles can be molded as required, metal
back shelled, left uncovered for use inside equipment where space is a constraint.
D-Sub or D-Subminiature is a common type of electrical connector used particularly
in computer and today they are among the largest common connectors used in computers.
D-sub connector contains two or more parallel rows of pins or sockets usually surrounded
by a D-shaped metal shield. The purpose of the shield is to provide mechanical support,
some screening against electromagnetic interference, and also ensures correct orientation.
The part containing pin contacts is called the male connector or plug, while that
containing socket contacts is called the female connector or socket. The socket’s
shield fits tightly inside the plug’s shield. The shields are connected to the overall
screens of the cables (when screened cables are used) creating an electrically continuous
screen covering the whole cable and connector system.
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DVI Cables
Digital Video Interface is a popular form of video interface technology created
to maximize the quality of flat panel LCD monitors and modem video graphics cards.
It is a replacement for the P&D Plug and Display standard and a step up from the
digital only DFP format for older flat panels. DVI cables are becoming increasingly
popular with video card manufacturers, and most cards nowadays include both a VGA
and VDI output port.
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FiberOptic Cables
In recent years, it has become apparent that fiber optics is steadily replacing
copper wire as an appropriate means of communication & transmission of signals.
They span the long distance between the local phone system as well as providing
the backbone for many network systems. Other system users include cable television
services, university campuses, office buildings, industrial plants and electricity
utility companies
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HDMI Cables
High-Definition Multimedia Interface or HDMI is considered as the next generation
of audiovisual cabling. HDMI is an all digital connector that can carry several
digital audio and high definition video channels all in one cable. HDMI came as
late as 2003 in the market but now we can find widespread support for the standard.
HDMI cables have up to 10Gbps worth of bandwidth available. That means it has more
than enough capacity to carry an uncompressed high definition video signal as well
as up to eight channels 25-bit of high quality audio. In other words, it means that
there is no conversion of the signal from digital to analog and back or no compression
that could possibly affect video or audio quality. As a result, the HDMI cables
can deliver high quality sound or vision without loss of quality that normally happens
when conversion or compression takes place in analog cabling vis-à-vis digital sources.
HDMI pictures are sharper and smoother and with distinct less noise quality that
makes the sound crisp and clear without any distortion whatsoever. Further, due
to the presence of only one cable for the system, and no cable clutter. HDMI, being
digital, works well with fixed pixel displays like plasma, LCD or DLP screens and
projectors. A HDMI cable has the unique characteristic to match pixel to pixel resolution
of the screen with the source device to which it is connected. HDMI will also automatically
convert a picture to its appropriate format like 4:3 or 16:9. HDMI has also some
smart features in-built which facilitate control of any device remotely connected.
Since HDMI connection allows two way communication between devices, it provides
remote functions like advising the components in an HDMI–linked system, to turn
on the DVD when desired, by pressing a switch.
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Networking Cables
Networking cables are used to connect one network device to another or to facilitate
two or more computer to share the same printer, scanner etc. Depending on the network
cables topology, protocol and size, different types of network cables are used.
Type of cables include: Coaxial cables, twisted pair cable, Optical fiber cable.
The network devices as mentioned above may be separated by a few meters via Bluetooth
or nearly unlimited distance via internet connections of the Internet. Although
it is true that wireless is the wave of the future, most computer networks today
still utilize cables to transfer signals from one point to another. Following lines
details one of the most common networking cable Cat 5
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RF Cables
RF cable which is a famous name in the communications Industry for coaxial cables
and also because these cables are manufactured by using premium grades of raw materials.
RF coaxial cables are widely used in high frequency transmission of signals in computer
complexes, industrial electronics and maintenance. RF co-axial cables because of
its wide electrical, mechanical assemblies and thermal properties are considered
to be the best solution to most of the problems related to application in the sector
of high frequency technology. These RF cables were originally developed for Military
applications meeting the requirements of American Military regulation. The RF cables
nee co-axial cables are employed throughout the field of specified H.F. Technology
because of its quality which is approved throughout the world.
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SCSI Cables
The SCSI Cables refers to a comprehensive cable that includes the wire, connections
and possibly a terminator as well. There are a number of different types of cables
available; all these cables are combined with various types of connectors to create
specific implementations.
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USB Cables
USB stands for Universal Serial Bus and is still the standard interface for devices
to a computer. It is the primary method for connecting a diverse array of items
from mobile phone to printers. USB was created with the specific intention of providing
a ‘plug and play’ solution allowing devices to be swapped easily. USB cables are
the usual way of connecting one device to another but it is important to remember
that the maximum length for the USB cable is 5.0 meters. Anything more than that
will end in data delay and connection lost. There are ways and means, which involves
the use of USB hubs. Five hubs can be connected together using USB cables to form
a USB chain that allows for a maximum of 30 meter length.
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