Fibre – not only for Internet

September 2018 Products, IT infrastructure

With the expansion of fibre all over southern Africa, everybody now recognises the superior features of a fibre link. You are simply not ‘with it’ if you do not have Internet on fibre.

Fibre comes in many varieties, but the most common types are multimode and single mode fibre. The difference between the two is the physical size of the fibre strands: 50-micron versus 9-micron diameter.

Multimode fibre is normally identified by orange patch cords, has a bandwidth of 500 Mbps per 1 km length and is used on distances up to 3 km. Single mode fibre has unlimited bandwidth and is used on distances up to but not limited to 20 km. Advanced Digital Devices has produced equipment to carry data up to 96 km.

Advanced Digital Devices (ADD) has been manufacturing fibre to data interfaces since 1987. It can supply units to convert from fibre to many standards such as RS-232, RS-485, E1, USB, LAN, analogue video, HD analogue video, IP video, telecommunications and many others. The company’s first product range was analogue video on fibre. This was used extensively on mining installations where cameras are often installed many kilometres from the control centre.

ADD still manufactures analogue video to fibre converters catering for the latest generation of analogue AHD/TVI cameras as well as converters for IP LAN cameras. The company can extend AHD and TVI signals over distances of up to 3 km on multimode fibre and even longer distances over single mode fibre, providing high resolution CCTV images over an existing fibre network.

ADD stocks analogue video over fibre converters as well as 4/8/16 port POE IP video over fibre switches.



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