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www.sea-technology.com July 2015 / st 31 Detected ordnance derived from an in- strument verifcation strip (IVS). ability to send back imagery data; a capability not possible with previous multiplexers. In addition, the TEMA was designed with the goal of inter- changing various sensors and monitor- ing equipment that are all compatible with the high-speed bus provided by the SeaView multiplexer. This includes a second altimeter and the addition of live HD video and real-time upload of 12-megapixel DSLR stills. An example of the sort of analysis enabled by TEMA with the SeaView multiplexer is detailed mapping of sub- merged metal features for identifying unexploded ordnance. Because of the detailed sensor data from TEMA, a post-survey analysis can identify and predict the nature of individual features in the map area of the survey with great precision. Upgrade Path for Legacy Systems In addition to providing en- hanced capabilities for custom designs such as the TEMA ve- hicle, the SeaView multiplexer is designed as a pin-compatible upgrade to the multiplexers al- ready deployed in a number of legacy systems. This enables an easy upgrade path for hundreds of legacy ROVs that were built in a less-data-intensive era. The enhanced data capabilities pro- vided by the SeaView stack offer the fexibility to manage a wide range of sensors and the band- width to future-proof many ex- isting ROV platforms. The multiplexer's cards are designed to the PC-104 stan- dard used in numerous existing ROV designs. This makes it easy to swap out the existing card for the pin-compati- ble upgrade and breathe new life into legacy equipment. Instead of acquiring a whole new ROV platform to support HD video or other applications, the SeaView multiplexer can be swapped into an existing system and add the necessary data capability for HD video and a host of other sensors. Tech Specs Enhance Flexibility The SeaView Systems SVS-509 Om- niData Multiplexer consists of a suite of three optical video and data transmis- sion cards, each available separately and built to the standard PC-104 form factor with a fexible set of ports: the underwater munitions sites, the TEMA has provided Tetra Tech with a fully operational platform, tested and ready to survey in water depths from centi- meters to more than 100 meters, and fexible enough to adapt to each new deployment. A key element of the TEMA's design is an array of three high-sensitivity met- al detectors. The arrayed design allows for the detection of ferrous and nonfer- rous metals, even in close proximity to piers and other structures where mag- netometers fail. Thanks to the fexibility of the SeaView multiplexer, Tetra Tech was able to design the TEMA with the