66
13 CONNECTING PERIPHERAL EQUIPMENT
REMOTE CONNECTOR
Pin No.
Pin Name
Function
I/O
1
SPO
Speaker output
O
2
COM
Common terminal
I/O
3
SS
Standby; when grounded, the transceiver enters TX
mode.
• During transmission, the audio input of ACC2 connector
terminal 11 (ANI) and the USB terminal are muted.
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 (approx. -7 V).
I
7
RL
Approx. +12 V DC is output when in TX mode (10 mA
max.).
O
EXT.AT CONNECTOR (for AT-300)
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
MIC CONNECTOR
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
—