User manual

ARK-3381 User Manual 12
2.3.3 COM2 ~ COM6 Connector
The ARK-3381 provides 6 RS-232/422/485 serial communication interface
ports for COM2, COM3, COM3 COM4, and COM5 by 6 D-sub 9-pin con-
nectors. The default setting of COM2, COM3, COM4 COM5 and COM6 is
RS-232. Please refer to section 3.3 ~ section 3.7 "Jumper Settings" and
Chapter 6 "Full Disassembly Procedure" for set up information
.
Figure 2.7: COM port connector (COM2 ~ COM6)
Note: NC represents “No Connection”
9RI
Table 2.5: COM2~COM6 Serial port pin assignments
RS-232 RS-422 RS-485
Pin Signal Name Signal Name Signal Name
1 DCD Tx- DATA-
2RxDTx+DATA+
3 TxD Rx+ NC
4DTRRx-NC
5 GND GND GND
6 DSR NC NC
7 RTS NC NC
8 CTS NC NC
9RINCNC
Table 2.4: COM1 Serial port pin assignments
Pin
Signal Name
15
9
6
324
78