Table 2.2: Com Connector Pin Assignments - Advantech MIC-770 User Manual

2.3.1.1 COM connector
MIC-770 provides four 9-pin D-sub connectors, two of which offer RS-232/422/485
and the other two offer RS-232 serial communication interface ports. Default setting is
RS-232, but this can be modified by BIOS setting. You can find detailed setting meth-
ods in Chapter 3.

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".
2.3.1.2 Ethernet connector (LAN)
MIC-770 is equipped with two Ethernet controllers that are fully compliant with IEEE
802.3u 10/100/1000 Mbps CSMA/CD standards. LAN1 is equipped with Intel i219
and LAN2 is equipped with Intel i210. The Ethernet port provides a standard RJ45
jack connector with LED indicators on the front side to show its Active/Link status and
Speed status.
Table 2.3: Ethernet Connector Pin Assignments
Pin
1
2
3
4
5
6
7
8
RS-422
Signal Name
Tx-
Tx+
Rx+
Rx-
GND
NC
NC
NC
NC
8 1
Figure 2.2 Ethernet Connector
10/100/1000BaseT Signal Name
TX+
TX-
RX+
MDI2+
MDI2-
RX-
MDI3+
MDI3-
11
RS-485
Signal Name
DATA-
DATA+
NC
NC
GND
NC
NC
NC
NC
MIC-770 User Manual