The standard 1200 system is designed to transport four (4) channel AES/EBU serial digital audio signals over long distance through either singlemode or multimode fiber.

The 1200 Series is a high performance, yet affordable, Fiber Optic Serial Digital Audio Transport System. The 1200 design will only accept synchronous AES/EBU channels of 44.1 or 48 kHz frequency. Because of the use of advanced digital, fiber optic transmission technology, no user adjustments are required in the 1200 system, enabling quick setup and trouble-free operation. The 1200 is designed for compliance with AES3-1992 (ANSI S4.40-1992, IEC 958), a standard format and protocol for serial transmission of digital audio. The 1200 Series comes with two packaging options: a rugged, standalone, and compact unit, or a plug-in card for a card cage system. Panel connectors are provided for digital serial audio (BNC connector) and fiber connection (FC-type for the singlemode version, or ST-type for the multimode version). The 1200 Series is easily monitored through front panel LED indicators for power, optical link, and channel activity. The 1200 design is capable of addressing a variety of non-standard configurations.