ARK-1123 User Manual 22
2.5.6 Audio Connector
ARK-1123L offers stereo audio ports by two 3.5 ear phone jack connectors of
Line_out and Line_in. The audio chip controller is ALC-888S which is compliant with
the Azalea standard.
Figure 2.26 Audio Connector
2.5.7 COM Connector
ARK-1123L provides two D-sub 9-pin connectors, which offers 1 x RS-232 & 1 x RS-
232/422/485 (BIOS Selectable) serial communication interface.
Figure 2.27 COM Port Connector
Table 2.16: Audio Connector Pin Assignments
Pin Signal Name
1 Line-out
2 Line-in
Table 2.17: COM Connector 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 means “No Connection”.
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