Graphics is one of the fastest growing areas of computer application today. From monochrome to full colour high resolution eventually all draughtsmanship and engineering drawings will be produced by computer. The ability to provide and update drawings or change perspective and size at the touch of a button with perfect prints everytime spells the end of the drawing board. The problem associated with this revolution is one of bandwidth and distance. Computer graphics employ up to 60MHz pixel rates and using coaxial cable means the operators have sometime to be within 50 metres of the controller. However, using fibre optic links, full resolution can be maintained at 5000 metres of more, allowing drawing offices to be situated anywhere on a site.