From Communication Specialties, the Pure Digital Fiberlink Flex System transmits video, audio and data with flexibility. The Pure Digital Fiberlink Flex System is an all new, all digital, custom-configurable fiber optic link designed to support of video, audio, data and contact closure transmission requirements. The unique Flex System can be ordered in a wide range of permutations, with the capability to transmit any or all of the following: one channel of video in one or two directions; four independent audio channels: four channels in one direction or two in each direction, two data/contact closure slots, either two channels bi-directional data and two channels contact closure or one channel of each.