Advantech ARK-3381 - Figure 2.8:COM3 ~ COM6 Connector; COM7 Connector; Figure 2.9:COM7 Connector; Table 2.7:COM 7 Serial Port Pin Assignments

13 Chapter 2
Figure 2.8: COM3 ~ COM6 connector
Note: NC represents “No Connection”
2.3.4 COM7 Connector
The ARK-3381 provides a D-sub 9-pin connector, which offers one RS-
232 serial communication interface port of COM7; it comes with func-
tions of Rx and Tx only but without handshaking. Please refer to section
3.8 "Jumper Settings" and Chapter 6 "Full Disassembly Procedure" set up
information.
Figure 2.9: COM7 Connector
Table 2.6: COM 3~COM 6 Serial port pin assignments
RS-232 RS-422 RS-485
Pin Signal Name Signal Name Signal Name
1DCD Rx- NC
2 RxD Rx+ NC
3TxD Tx+ DATA+
4DTR Tx- DATA-
5 GND GND GND
6 DSR NC NC
7 RTS NC NC
8 CTS NC NC
9RI NC NC
Table 2.7: COM 7 Serial port pin assignments
RS-232
Pin Signal Name
1 DCD (optional)
15
9
6
324
78
15
9
6
324
78