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6
CONNECTION AND INSTALLATION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
Quic
k Ref
erence
DATA
Pin Pin name
Description
1
5
6
9
1
NC
No connection.
2
TXD
Output terminal for transmit data.
3
RXD
Input terminal for receive data.
4
DTR
Output for data terminal ready signal.
5
GND
Connect to ground.
6
NC
No connection.
7
CTS
Input terminal for clear-to-send data.
8
RTS
Output for request-to-send data.
9
NC
No connection.
EXT. MODEM
Pin Pin name
Description
Specification
1
8
1
TXD
Output terminal for receive data.
RS-232C
2
RXD
Input terminal for transmit data.
RS-232C
3
GND
Connect to ground.
—
4
PTT
PTT input terminal.
When grounded, transmits.
0 V: transmit, 5 V: receive
5
AF GND
Ground line for the AF signal.
6
AF OUT
Output terminal for the AF signal.
Output impedance : 1 k
Ω
Output level
: 200 to 400 mVrms
7
AF IN
Input terminal for the AF signal.
Input impedance : 1 k
Ω
Input level
: 200 to 800 mVrms
8
NC
No connection.
—