Extron is now shipping its new FOX RS 104, a four port RS232 inserter for long-haul transmission of control signals to remote source and destination equipment over fiber optic cabling. Each port provides a bidirectional fiber optic connection to an Extron FOX Series transmitter or receiver for the insertion and extraction of control data, while maintaining a continuous pass-through link for video and audio.
RS232 data from the Ethernet port is inserted onto one or more of the fiber optic outputs, providing remote monitoring and control. Reclocking on the unit’s buffered fiber optic outputs ensures signal integrity and transmits the fiber optic signal at its original power level. The FOX RS 104 maintains the performance of the optical signal transmission while providing bidirectional control from a control processor, eliminating the need for separate control system wiring to remote devices. Available in multimode andsinglemode models, it is compatible with the extensive line of FOX Series extenders, distribution amplifiers, switchers, and matrix switchers.
Here are all the specs: http://www.extron.com/product/product.aspx?id=foxrs104&s=5