ARK-2250 User Manual
14
2.3.1.8
Audio Connector
ARK-2250 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 2.10 Audio Connector
2.3.1.9
COM Connector
ARK-2250 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 and change settings.
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
Note!
NC represents “No Connection”.
