Despite the technological advancement, most of the computer networks require cables to move information from one point to another. There are various types of Mississauga network cabling that are used with LANs. In limited cases, one type of cable may be utilized by the whole network while other types of networks will need a variety of cables. The selection of a cable in a network will depend on the network’s size, topology and protocol.
Invented back in in the 1880’s coaxial cables were mainly used to connect home antennas to the television sets. In 1980’s when 10 Mbps was commonly used, thinnet and thicknet were the only available cables.
Coaxial cables contain an inner copper wire of varying thickness with an insulation coat among other shielding. Due to their stiffness, network administrators experienced difficulties in maintaining and installing thicknet and thinnet cables.
Twisted Pair Cables
Since the coaxial cables were proving to be a huge challenge, the twisted pair cables emerged in the 1990s leading to new cabling standard for Ethernet. The original 10 Mbps also known as category 3 was soon followed by 100 Mbps also known as Cat5. Later, higher speed cables of up to 10 Gbps were invented.
Twisted pair cables come with 8 wires that have been wound together in order to reduce electromagnetic interference. This interference is also known as crosstalk – noise generated by adjacent pairs. Whenever current flows through a wire, a circular magnetic field is created. Therefore, the idea of twisting the cables is to cancel this magnetic field.
Apart from Ethernet networks, a twisted-pair cable is widely used in telephone communication. Twisted pair cables come in two major categories – Shielded Twisted Pair (STP) and Unshielded Twisted Pair (UTP). Modern day networks use UTP because of their affordable costs.
This is a network cable that is made up of glass fiber strands within an insulated casing. Fiber optic cables are specifically designed for high performance in long distance networking. Most of the world’s telephone systems, internet and cable television rely on fiber optics.
Fiber optic cables transmit data by use of light pulses produced by light-emitting diodes or lasers. This type of cable is made up of a single strand of glass – normally thinner than human hair. At the center of this strand is a “core” which provides the way for the light to the light to travel. The core is normally surrounded by a “cladding” which helps in preventing loss of signals through reflection.
Universal Serial Bus (USB) Cables
This is a high performance networking cable. Most of the modern day computers and their peripheral devices come with in-built technology for this particular technology. Creating a USB network is easy; just connect the USB cable to the USB port. Once the connection is done, the device is automatically connected through USB driver software.
USB interfaces are compatible; for instance, a USB 1.1 and USB 2.0 can easily be networked. Where two connections are supporting USB versions, the link will run at the lower version’s speed.
Serial and Parallel Cables
Since most of the computers did not have Ethernet capability in 1980’s and early 1990’s, and USB had not yet been invented, serial and parallel interfaces were used where PC-to-PC was required. For instance, null-model created a connection between two PCs with data transfer rate of 0.115 and 0.45 Mbps.
Crossover cables are also known as Null modem cables. A crossover cable is used in joining two similar network devices such as network switches or PCs. Networking crossover cables were mainly used to connect two PCs together.
Crossover cables are similar to one another; the only notable difference is the color wires towards the end of the cable’s connector. This color feature was intentionally added by the manufacturers for the purpose of differentiation.