User manual RANE RC 24A

[. . . ] Set the INPUT SELECT switch to AES/EBU or SPDIF for the appropriate input. Connect the AES/EBU OUTPUT on the rear of the RC-24A to whatever is receiving the 24-bit digital audio signal during playback (and monitoring). Connect the supplied Rane RS-1 remote power supply to the red POWER jack on the rear of RC-24A. [. . . ] These LEDs indicate the word length (in bits) of the AES/EBU (or SPDIF) source (sync) input. This switch engages 16-bit dithering and truncation on the AES/ EBU OUTPUT. Dither should be engaged when the AES/EBU OUTPUT is feeding a device that truncates the signal to 16 bits (e. g. DAT recorder, digital signal processors, and so on). REAR PANEL DESCRIPTION 1. The AES/EBU OUTPUT transmits digital audio conforming to the AES/EBU standard. Digital audio exiting this Output is identical to the original digital audio fed to the AES/EBU (or SPDIF) INPUT and recorded onto the ADAT. This Output is typically connected to a D/A converter, hard disk recorder or a CD mastering system. The AES/EBU OUTPUT follows international conventions, with pin 2 hot, pin 3 negative, and pin 1 tied to chassis ground. This Input is typically connected to a digital audio source, such as an A/D convertor or the output of a digital mixer. The SPDIF INPUT is just like the AES/EBU INPUT, except data received here receives digital audio formatted with the consumer "Sony Philips Digital Interface Format". This switch allows you to select the desired Input (SPDIF or AES/EBU). Another way of putting it is: you must select the proper Input (the one you plugged a cable into). This interface connects the RC-24A to a device equipped with the ADAT OPTICAL INTERFACE (e. g. Caution: Never connect anything except the Rane RS 1 AC power supply (enclosed with the unit) to the thing that looks like a red telephone jack on the rear of the RC-24A. This is a low-voltage AC power input, and connecting it to telephones, computer keyboards, or other devices will result in unpredictable, and potentially catastrophic, results. If you want to destroy your RC-24A, we suggest wiring it to the output of a power amplifier, or dropping it out of an airplane. IMPORTANT NOTE FCC & VDE NOTICE This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules, and similar requirements found in European specifications VDE 0871/0875. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. [. . . ] The 24-bit files can be backed up through a PAQRAT to maintain the highest quality in the audio data. When mastering a project that was mixed 16-bit, use the PAQRAT to make an EQ safety. The output from digital mastering consoles is usually 24-bit (the 24-bits is generated by the math used to perform digital EQ, limiting, compression and level changes). [. . . ]