Advantech ARK-1124, User Manual

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ARK-1124 User Manual 20
2.5.5 Audio Connector
ARK-1124U offers stereo audio ports by two phone jack connectors of Line Out, Lin
In. The audio chip is controlled by ALC888S, and it’s compliant with Azalea standard.
Figure 2.21 Audio Connector
2.5.6 COM Connector
ARK-1124U provides two 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 find the BIOS manual to change setting.
Figure 2.22 COM Connector
NC represents “No Connection”.
Table 2.9: Audio Connector Pin Definition
Pin Signal Name
1 Line-out
2 Line-in
Table 2.10: COM Connector Pin Definition
RS-232 RS-422 RS-485
Pin 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