Advantech ARK-3440 Series, Руководство пользователя

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ARK-3440 User Manual 10
2.2.5 COM Connector
ARK-3440 provides 6 D-sub 9-pin connectors that are serial communication interface
ports. The COM1 on the rear panel supports RS-232/422/485 mode by BIOS selec-
tion; COM2 and 3 on the front panel and COM5 and 6 on the internal header only.
The COM1 and COM4 default settings are RS-232; if you want to use RS-422/485,
make the change in BIOS setup.
Figure 2.7 COM port connector
2.2.6 eSATA Connector
ARK-3440 has a 7-pin external connector for an eSATA device. It is fully compliant
with SATA I/SATA II standards, and supports external SATA I/SATA II devices 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”.