DATA CABLING

Dependable data cabling services in Goulburn Valley

At Bonnett’s Staff Electrical Contractors, we offer an excellent range of data cabling services for our customers throughout Goulburn Valley and Shepparton. There are two key types of data cables – copper and fibre optics. However, these come in many forms. Take a look at the different kinds of data cabling systems we work with below.

TWISTED PAIR

Many modern-day telecommunications and computer networks use twisted pair copper wiring. This consists of two copper cores, each with its own plastic insulation that is twisted together. One wire carries the signal while the other is used as ground reference. The advantage of this system is that both wires are equally effected by external influences. Twisting the cables helps to protect the data communication from signal degradation. The two most widely-used categories of twisted cabling are CAT3 (voice) and CAT5e. With new installations, CAT5e is being used for voice with a high-speed cable to support 10GBASE-T for long-term usage.

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COAXIAL CABLE

Often used in older computer networks, coaxial (or coax) cables carry higher frequency signal than twisted pair cables. It has a central core conductor of solid wire enclosed in an insulator that is then covered by an outer conductor of metal foil which completes the circuit. The whole cable is then sealed and protected with a plastic cover. Although coax cables have a higher bandwidth, their attenuation is far higher than twisted pair cables. This makes them suitable for digital telephone networks where a single cable can carry data up to 600Mbps.

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FIBRE OPTIC

Fibre optic cables are being used more and more by telephone companies to provide super-fast internet connections to people all over the world. These cables transmit data signals in the form of light. This light channel consists of two main parts – core and cladding. The cladding acts as a protective layer for the core, but, more than that, it also acts as a reflector for the beam of light moving through the core. This helps to keep the cable lightweight while reducing the risk of signal degradation problems that twisted pair and coaxial cables suffer from. However, this type of cable is expensive and can be fragile due to its glass parts. There are two types of connectors for fibre optic cables - the SC connector used for cable TV, and the ST connector used for connecting cables to networking devices.

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