User manual

11 ARK-3202V User Manual
Chapter 2 Hardware installation
COM Port / COM3~COM5
The ARK-3202V comes with a D-Sub 26-pin connector that carries COM Port signal,
and can support RS-232, RS-422 and RS485 via internal DIP switch.
Pin RS-232 RS-422 RS-485
1DCD3Tx3-D3-
2 RxD3 Tx3+ D3+
3 TxD3 Rx3+
4 DTR3 Rx3-
5DCD5
6RxD5
7GND
8CTS5
9RI5
10 DSR4
11 RTS4
12 CTS4
13 RI4
14 DSR3
15 RTS3
16 CTS3
17 RI3
18 DSR5
19 RTS5
20 TxD5
21 DTR5
22 DCD4 Tx4- D4-
23 RxD4 Tx4+ D4+
24 TxD4 Rx4+
25 DTR4 Rx4-
26 GND