Advantech ARK-2232, User Manual

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ARK-2232 User Manual 16
2.3.1.8 Audio Connector
ARK-2232 offers stereo audio ports by two phone jack connectors of Line_Out,
Mic_In. The audio chip is controlled by ALC888S, and it's compliant with Azalea stan-
dard.
Figure 2.11 Audio Connector
2.3.1.9 COM Connector
ARK-2232 provides four COM ports by four D-sub 9-pin connectors. Com1/Com2
only support RS232. Com3/Com4 offers RS232/422/485 serial communication inter-
face ports. COM3/Com4 default setting is RS-232, if you want to use RS-422/485,
you can find the BIOS manual to change setting.
Figure 2.12 COM Connector
NC represents "No Connection".
Pin Audio Signal Name
1 Line out
2 Mic in
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