TOSLINK
Clear TOSLINK cable with a round connector.
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| Type | Optical digital audio connector | ||
|---|---|---|---|
| Designer | Toshiba | ||
| Designed | 1983 | ||
| Manufacturer | Toshiba | ||
| Produced | Since 1983 | ||
| Hot pluggable | Yes | ||
| External | Yes | ||
| Audio signal | Digital audio bitstream. Originally limited to 48 kHz at 20 bits. Extended to support all modern formats (Depending on manufacture and specification) | ||
| Cable | Optical fiber, ~10 m (33 ft) maximum | ||
| Pins | 1 | ||
| Connector | JIS F05 (JIS C5974-1993 F05) | ||
| Width | 32-bit audio packets | ||
| Bitrate | Originally 3.1 Mbit/s; now 125 Mbit/s | ||
| Max. devices | 1 | ||
| Protocol | Serial | ||
TOSLINK (from Toshiba Link) is a standardized optical fiber connector system. Also known generically as an "optical audio cable" or just "optical cable", its most common use is in consumer audio equipment (via a "digital optical" socket), where it carries a digital audio stream from components such as CD and DVD players, DAT recorders, computers, and modern video game consoles, to an AV receiver that can decode two channels of uncompressed lossless PCM audio or compressed 5.1/7.1 surround sound such as Dolby Digital Plus or DTS-HD High Resolution Audio. Unlike HDMI, TOSLINK does not have the bandwidth to carry the lossless versions of Dolby TrueHD, DTS-HD Master Audio, or more than two channels of PCM audio.
Although TOSLINK supports several different media formats and physical standards, digital audio connections using the rectangular EIAJ/JEITA RC-5720 (also CP-1201 and JIS C5974-1993 F05) connector are by far the most common. The optical signal is a red light with a peak wavelength of 650 nm. Depending on the type of modulated signal being carried, other optical wavelengths may be present. A less common format is a coaxial cable ending in RCA jacks, which is found on some receivers.
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