Apple Logic Pro 9 - Manual (Page 37)

1/4-inch (6.35 mm) Audio
1/4-inch (6.35 mm) connectors (sometimes called phono or phone plugs) are used on a
wide variety of professional and consumer musical equipment, including musical
instruments and amplifiers, speakers, and external effects devices. They can be either
balanced or unbalanced. Some devices require Tip-Ring-Sleeve (TRS) connectors. These
three-contact connectors are used for balanced mono signals and unbalanced stereo
signals.
1/4-inch Tip-Ring Sleeve (TRS) connector
1/4-inch Tip-Sleeve (TS) connector
1/8-inch (3.5 mm) Miniplug
Miniplug connectors are used for audio input and output to computers, and on some
consumer electronic devices, particularly portable ones.
Stereo miniplug connector (unbalanced)
RCA (Cinch)
RCA connectors are used on consumer audio equipment such as home stereo systems
and videocassette recorders.
RCA connector (unbalanced)
S/PDIF
Sony/Philips Digital Interface Format is a consumer-level variation of the AES/EBU digital
audio protocol. S/PDIF audio data can be transmitted several ways, including:
• Via coaxial cables with an RCA connector
• Via optical TOSLINK
Connectors for S/PDIF signals are found on most consumer digital equipment, such as
DAT (digital audio tape) recorders, CD players, DVD players, MiniDisc equipment, and
some audio interfaces.
S/PDIF optical digital connector
37 Chapter 2 Setting Up Your System