KSA 2A fiber optic audio converter provides bidirectional audio transmission over fiber optic cable up to 20km. It uses only 1 fiber (FC/UPC interface) for transmission. The uncompressed transmission is performed in real time, thus ensuring the highest quality of the outgoing audio signal without any distortion. Thanks to bidirectional transmission, it provides the ability of announcing messages from local  operator’s desktops and transmission from loudspeakers of the HUSAR PA system to recorders.