The most well-known applications for Toslink connectors are optical networks, industrial electronics, and consumer electronics.
“Toslink” is the leading brand for F05 and F07 connectors according to the Japanese industry standard (JIS). There they were developed in the 1980s for the digital transmission of audio signals.
These connectors have a ferrule diameter of 2.5 mm and are used exclusively for SI 200/230 μm and 1 mm plastic fibers.