Digital Recorder
61
11.4.5 PSTN Modem
Physical:
9-way D-type (female)
Electrical: RS232
5
4
9
3
8
2
1
7
6
Pin Number
Signal
In/Out
1 DCD
In
2 RXD
3 TXD
Out
4 DTR
5 GND
6 +8V
7 RTS
8 CTS
9 RI