Advantech ARK-3400, User Manual, Page: 22 / 87

ARK-3400 User Manual 10
2.2.5 COM Connector
ARK-3400 provides four D-sub 9-pin connectors that are serial communication inter-
face ports. The COM1/2 in the rear side support RS-232/422/485 by jumper setting,
the COM3/4 in the front side support RS-232 only. Default setting of these four ports
are RS-232.
Figure 2.7 COM port connector
2.2.6 eSATA Connector
ARK-3400 has a 7 pin external connector for eSATA device. That is fully compliant
with SATA I/SATA II standards, its can be access with external SATA I/SATA II device
then up to 300MB/sec.
Figure 2.8 eSATA connector
Table 2.1: COM standard serial port pin assignments
RS-232 RS-422 RS-485
Pin Signal Name Signal Name Signal Name
1 DCD Tx- DATA-
2 RxD Tx+ DATA+
3 TxD Rx+ NC
4 DTR Rx- NC
5 GND GND GND
6 DSR NC NC
7 RTS NC NC
8 CTS NC NC
9 RI NC NC
Note: NC represents “No Connection”.