Sony PCV-RXP-RZP - Manual (Page 26)

VAIO Digital Studio System Reference Manual 12
Microphone, Headphones, and Line In Jacks
The microphone, headphones, and line in jacks are physically identical,
but have different connections. They are standard 3.5 mm stereo
mini-jacks.
Telephone and Modem Line Jacks
The telephone and modem line jacks are physically identical and have
identical connections. They are standard RJ-11 female phone jacks.
However, the line jack is for connecting a telephone line that comes from
the wall to the computer, and the telephone jack is for connecting the
telephone to a computer.
S/P DIF Optical Out Port
The Plastic Optical Fiber (POF) output port for the Sony®/Phillips
Digital Interface (S/P DIF) can be used to connect compatible audio or
video equipment, such as CD/DVD players or MiniDisc recorders.
Connector Description
Microphone Electret condenser microphone input.
Headphones 1.0 Vrms (typical).
Line In 1.0 Vrms (typical), 10 Kohm impedance.
Headphones Line In Microphone
Modem Telephone
Line Line