The FT/FR-8W1C1G/1C1G-x series fiber optic transmission system that utilizes Meridian’s new digital encoding technology to transport following signals like Four real-time, high quality, 10bit 7MHz video channels, One Bi-directional Contact Closure channel, One channel of user selectable, full duplex RS232, RS485 (2 or 4 wire), RS422, Manchester, Bi-Phase data. The versatility of the FT/FR-8W1C1G/1C1G-x system is enhanced by SpectraView, an on-screen video diagnostic/setup firmware system and SpectraSmart, an optional PC based network diagnostic system. SpectraView monitors the integrity of the video signal and the fiber link. A break in the fiber path will cause a loss of fiber alarm to be displayed on an associated monitor. SpectraView is easy to use, always active and eliminates the need for additional test equipment. SpectraView also includes a selectable on-board audio and data test signal generator with built-in local and remote loop-back functions. This card is also capable of data protocol conversions within the link to provide additional data flexibility. If greater diagnostic capability is required, the functionality of FT/ FR-8W1C1G/1C1G-x series is further enhanced by its compatibility with Meridian’s PC based SpectraSmart™, network management and remote diagnostic software system. SpectraSmart super- vises the operating parameters of the transmission system such as status on video levels, sync, carrier detect, voltage, tempera- ture, optical levels, data present etc.