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Identifying Components
11
MIC, LINE IN, and HEADPHONES
The MIC, LINE IN, and HEADPHONES jacks are physically identical,
but have different connections. They are standard 3.5 mm stereo mini-
jacks.
TELEPHONE and LINE
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.
Connector Description
HEADPHONES 1.0 Vrms (typical).
MIC Electret condenser microphone input.
LINE IN 1.0 Vrms (typical), 10 Kohm impedance.
✍
Accidentally plugging a phone line from the wall into the modem’s
TELEPHONE jack, and a telephone into the LINE jack, will not damage the
modem card or telephone equipment. However, the modem will not work
correctly.
HEADPHONES LINE IN MIC
KY0013.VSD
LINE PHONE
KY0014.VSD
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