Table 4.5: Dio Connector - Advantech ARK-2231R-S9A1E User Manual

Table 4.5: DIO Connector

Pin Signal Name
1 GPIO_0
3 GPIO_2
5 GPIO_4
7 GPIO_6
9 GND
4.2.6 COM Connector
ARK-2231R provides two D-sub 9-pin connectors, which offers 2 x RS-232/422/485
serial communication ports.
Table 4.6: COM Connector Pin Assignments
Pin
1
2
3
4
5
6
7
8
9
Figure 4.5 DIO Connector
Figure 4.6 COM Port Connector
RS-232
Signal Name
DCD
RxD
TxD
DTR
GND
DSR
RTS
CTS
RI
Pin Signal Name
2 GPIO_1
4 GPIO_3
6 GPIO_5
8 GPIO_7
RS-422
Signal Name
Tx-
Tx+
Rx+
Rx-
GND
NC
NC
NC
NC
23 ARK-2231R User Manual
RS-485
Signal Name
DATA-
DATA+
NC
NC
GND
NC
NC
NC
NC