ARK-1124 User Manual 24
2.6.5 Audio Connector
ARK-1124C 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 stan-
dard.
Figure 2.30 Audio Connector
2.6.6 COM Connector
ARK-1124C provides four 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 2.31 COM Connector
NC represents “No Connection”.
Table 2.14: Audio Connector Pin Definition
Pin Signal Name
1 Line-out
2 Line-in
Table 2.15: COM Connector Pin Definition
RS-232 RS-422 RS-485
Pin Signal Name
1DCD Tx- DATA-
2RxD Tx+ DATA+
3 TxD Rx+ NC
4DTR Rx- NC
5 GND GND GND
6DSR NC NC
7RTS NC NC
8CTS NC NC
9RI NC NC
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