The F-XXA-TX-YY-ZZ is an Analog Audio over one fiber transmitter and receiver kit helps solve sending unbalanced audio over long distances using fiber. We have several different models supporting 2, 4, 8,16 and 32 analog audios. The audio fiber optic transmitter, converts analog Audio 20hz to 20Khz fiber optic modulated digital stream so it could be transported over single mode or multimode fiber. (long haul available) The optical receiver converts the optical signal back to its original analog wave form. Offers very low latency 1ms so it's perfect for live events, shows, concerts, auditoriums, etc. The small and compact form factor means it could be used for any applications where copper has a limited distance or noise issues.