Codecs usually come in two types of units: rackmount for the studio and portable for the remote. Audio can be sent in either direction, and most can also pass low-speed non-audio data, allowing the remote DJ to control broadcast automation or other studio equipment via RS-232.
Codecs typically come in two forms: rackmount for the studio and portable for the distant location. Audio signals can flow in either direction, and most can also transmit low-speed non-audio data, enabling the remote DJ to control broadcast automation or other studio equipment via RS-232.