Sony VAIO PCV-RX590G Reference Manual page 25

Telephone and Line Jacks
The telephone and line jacks are physically identical and have identical
connections. They are standard RJ-11 female phone jacks. However, the
line jack is for connecting to a telephone line that comes from the wall,
and the telephone jack is for connecting the computer to a telephone.
Computers installed with a HomePNA modem have one RJ-11 phone
jack. The modem installed on your computer may differ depending on
the configuration you purchased.
Line Phone
✍
Accidentally plugging a phone line from the wall into the modem's telephone jack, and a
telephone into the line jack does not damage the modem card or telephone equipment.
However, the modem will not work correctly.
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.
Identifying Components
13