Advantech ARK-2250L User Manual page 27

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".
2.3.1.10 GPIO Connector
ARK-2250 provides 8-bit GPIO, please refer to the pin definition.
Pin
1
2
3
4
5
6
7
8
9
RS-422
Signal Name
Tx-
Tx+
Rx+
Rx-
GND
NC
NC
NC
NC
Figure 2.11 GPIO Connector
Signal
DIO bit 0
DIO bit 1
DIO bit 2
DIO bit 3
DIO bit 4
DIO bit 5
DIO bit 6
DIO bit 7
GND
15
RS-485
Signal Name
DATA-
DATA+
NC
NC
GND
NC
NC
NC
NC
ARK-2250 User Manual