Fibre optic cables
The advantage with this method of data transmission is that the distances that can be covered are far greater than with copper cabling. Additionally the data bandwidth is also increased compared to copper and EMC problems do not occur. The only downside when using fibre optics for data is the difficulty of joining or extending them. Generally, fibres used for vision applications will be purchased at the correct length to avoid these problems, and most cables will have ready moulded connectors that allow easy connection to repeaters and extenders.