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RST980
INSTALLATION
&
USER
MANUAL
29
Using the Line In/Out
The
Line In/Out
pluggable screw-terminal allows interfacing to the vehicles’ existing
communications system. The Line audio level of this interface is that of typical
equipment being -10dBV, which is about 0.3V.
Pinout:
1 (left) = Line In (uplink audio)
2 (middle) = ground
3.(right) = Line Out (downlink audio)
,
NOTE:
It is recommended to use screened 2-core audio cable in making the plug. It
may be required to adjust the gains of the communications system that is being
interfaced in order to achieve optimum levels.
,
NOTE:
The
microphone port
needs to be disabled if using the
line-In,
by switching the
slide switch to the RIGHT. Use the tip of a pen to
gently
click the slide switch over to the
RIGHT.
Line In/Out
Slide Switch