63 Appx. A
A.13 COM port 3, 4 Connector (CN9)
Table A.13: COM port 3,4 Connector(CN9)
Pin Signal Pin Signal
1 DCD3 2 DSR3
3SIN3 4RTS3
5 SOUT3 6 CTS3
7DTR3 8RI3
9GND 10GND
11 DCD4 12 DSR4
13 SIN4 14 RTS4
15 SOUT4 16 CTS4
17 DTR4 18 RI4
19 GND 20 GND
171
218
3
420
19