Advantech ARK-2250L-U6A1E User Manual page 43

2.3.1.1 COM Connector
ARK-2250 provides four D-sub 9-pin connectors, which offers RS232/422/485 serial
communication interface ports. Default setting is RS-232, if you want to use RS-422/
485, you can refer to Section 3.4.2 BIOS Setup.
Table 2.3: 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 means no connection.
2.3.1.2 Ethernet Connector (LAN)
ARK-2250 is equipped with two Ethernet controllers that are fully compliant with IEEE
802.3u 10/100/1000 Mbps CSMA/CD standards. LAN1, LAN2 are all equipped with
Intel i219/i210 Ethernet controller. The Ethernet port provides a standard RJ-45 jack
connector with LED indicators on the front side to show its Active/Link status (Green
LED) and Speed status (Yellow LED).
Table 2.4: Ethernet Pin Assignments
Pin
1
2
3
1 2 3 4 5
6 7 8 9
Figure 2.3 COM Connector
RS-422
Signal Name
Tx-
Tx+
Rx+
Rx-
GND
NC
NC
NC
NC
8 1
Figure 2.4 Ethernet Connector
10/100/1000BaseT Signal Name
TX+
TX-
RX+
33
RS-485
Signal Name
DATA-
DATA+
NC
NC
GND
NC
NC
NC
NC
ARK-2250 User Manual