Connectors; Ark-2230L External I/O Connectors - Advantech ARK-2230 User Manual

Setting
1*
2
3
2.3

Connectors

2.3.1

ARK-2230L External I/O Connectors

2.3.1.1 COM Connector
ARK-2230 provides four D-sub 9-pin connectors, which offers RS-232 or RS232/422/
485 serial communication interface ports. Default setting is RS-232, if you want to
use RS-422/485, you can find the BIOS setting in Chapter 3.4.2 for ARK-2230L.
The RS-422/485 mode of ARK-2230 COM3~COM4 can be supported via BIOS set-
ting. The setting is under Advanced BIOS Features Setup -> Super IO Configuration.
Table 2.2: COM Connector Pin Assignments
RS-232
Pin Signal Name
1 DCD
2 RxD
3 TxD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
Note! NC represents "No Connection".
ARK-2230 User Manual
Function
NC (Default)
RTC_TEST#
GND (Clear CMOS)
1 2 3 4 5
6 7 8 9
Figure 2.2 COM connector
RS-422
Signal Name
Tx-
Tx+
Rx+
Rx-
GND
NC
NC
NC
NC
10
RS-485
Signal Name
DATA-
DATA+
NC
NC
GND
NC
NC
NC
NC