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Pin No. Pin Name Function I/O
1 SPO Speaker output O
2 COM Common terminal I/O
3SS
Standby; when grounded, the transceiver enters TX
mode.
I
4 MKE
When connected with the common terminal, the amplifier
enters TX mode.
I/O
5 BRK
When connected with the common terminal, the amplifier
enters RX mode.
I/O
6 ALC ALC input from the amplifier I
7RL
Approx. +12 V DC is output when in TX mode (10 mA
max.).
O
(;7$7&211(&725IRU$7
Pin No. Pin Name Function I/O
1 GND Ground
—
2 TT AT-300 control input/ output I/O
3 GND Ground
—
4 NC No connection
—
5 TS AT-300 control input/ output I/O
6 14S Power supply for EXT.AT Switched 13.8V. O
0,&&211(&725
Pin No. Pin Name Function I/O
1 MIC MIC signal input I
2 SS MIC standby (PTT) control I
3 MD MIC Down control I
4 MU MIC UP control I
5 8A Switched 8V O
6 NC No connection
—
7 MSG MIC GND
—
8 MCG GND
—