How many type of Network Cable
Coaxial Cables
Invented back in the 1880s, "coax"
was best known as the kind of cable that connected television sets to home
antennas. Coaxial cable is also a standard for 10 Mbps Ethernet cables.
When 10 Mbps Ethernet was most
popular, during the 1980s and early 1990s, networks typically utilized one of
two kinds of coax cable - thinnet (10BASE2 standard) or thicknet (10BASE5). These cables
consist of an inner copper wire of varying thickness surrounded by insulation
and other shielding. Their stiffness caused network administrators difficulty
in installing and maintaining thinnet and thicknet.
Twisted Pair Cables
Twisted pair eventually emerged during the
1990s as the leading cabling standard for Ethernet,
starting with 10 Mbps (10BASE-T, also known as Category 3 or Cat3), later
followed by improved versions for 100 Mbps (100BASE-TX, Cat5 and Cat5e) and
successively higher speeds up to 10 Gbps (10GBASE-T). Ethernet twisted pair
cables contain up to 8 wires wound together in pairs to minimize
electromagnetic interference.
Two primary types of twisted pair cable
industry standards are defined – Unshielded Twisted Pair (UTP) and Shielded
Twisted Pair (STP). Modern Ethernet cables use UTP wiring due to its lower
cost, while STP cabling can be found in some other types of networks such as FDDI.
Fiber Optics
Instead of insulated metal wires transmitting
electrical signals, fiber optic network cables work using strands of glass and
pulses of light. These network cables are bendable despite being made of glass.
They have proven especially useful in wide area network (WANs) installations where long distance underground or
outdoor cable runs are required and also in office buildings where a high volume
of communication traffic is common.
Two primary types of fiber optic cable
industry standards are defined – single-mode (100BaseBX standard) and multimode
(100BaseSX standard). Long-distance telecommunications networks more commonly
use single-mode for its relatively higher bandwidth
capacity, while local networks typically use multimode instead due to its lower
cost.
USB Cables
Most Universal Serial Bus (USB) cables connect a computer with a peripheral device
(keyboard or mouse) rather than to another computer for networking. However, special adapters
(sometimes called dongles) also
allow connecting an Ethernet cable to a USB port
indirectly. USB cables feature twisted-pair wiring.
Serial and Parallel Cables
Because many PCs in the 1980s and early 1990s
lacked Ethernet capability, and USB had not been developed yet, serial and
parallel interfaces (now obsolete on modern computers) were sometimes used for
PC-to-PC networking. So-called null model cables, for example, connected the serial ports
of two PCs enabling data transfers at speeds between 0.115 and 0.45 Mbps.
Crossover Cables
Null modem cables are one example of the
category of crossover cables.
A crossover cable joins two network devices of the same type, such as two PCs
or two network switches.
The use of Ethernet crossover cables was
especially common on older home networks years ago when connecting two PCs
directly together. Externally, Ethernet crossover cables appear nearly
identical to ordinary (sometimes also called straight-through), the only visible
difference being the order of color-coded wires appearing on the cable's end
connector. Manufacturers typically applied special distinguishing marks to
their crossover cables for this reason. Nowadays, though, most home networks
utilize routers that have built-in crossover capability, eliminating the need
for these special cables.
Other Types of Network
Cables
Some networking professionals use the term patch cable to
refer to any kind of straight-through network cable being used for a temporary
purpose. Coax, twisted pair and fiber optic types of patch cables all exist.
They do not differ in physical characteristics from other types of network
cables except that they tend to be a shorter length.
1.
How
to create cross-connection using RJ45 Connector With Figure ??
Crossover Cable
Sometimes you will use crossover cable, it's
usually used to connect same type of devices. A crossover cable can be used to:
1) Connect 2 computers directly.
2) Connect a router's LAN port to a switch/hub's normal port. (normally used
for expanding network)
3) Connect 2 switches/hubs by using normal port in both switches/hubs.
In you need to check how crossover cable looks
like, both side (side A and side B) of
cable have wire arrangement with following different color . Have a look
on these crossover cables if
you plan to buy one. You can also find more network cable choices and
information from Comtrad Cables.
In case you need to make a crossover cable
yourself! You can use this crimper to
do it.
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