F - 24 Tait Orca vehicle kit June 2003 IPN: M5000-00-105
MIC-D25 line. Thus whenever the radio is in
the vehicle kit the internal microphone is
disabled.
RS-232 Conversion
An RS-232 level 3 wire serial port is provided at
the DB25 connector (TX-OUT, RX-IN, GND),
for use by devices such as data terminals. The
radio provides CMOS level serial communica-
tions via the RXD and TXD signals. These
signals are converted to full RS-232 voltage
levels (i.e. +10 V for a logic 0, and -10 V for a
logic 1) by IC3.
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