Circa manufactures, markets, and sells surge protection and related equipment to the telecommunications industry in the United States and Canada. The company offers indoor and outdoor building entrance terminals, central office connectors, various surge protection modules, station protection enclosures, outdoor cabinets, high density protection devices, category 5 protection devices, and 5 pin module testers. Its products provide primary protection against voltage surges to telephone systems and other data transmission systems.
Circa provides a wide selection of protection panels which are used to house multiple protectors. Panels and terminals for 6, 12, 25, 50, 100 pairs and beyond are available with an impressive array of customer connection and termination options.