Copyright © Vecow Co., Ltd. All Rights Reserved. SPC-2000 Series Ultra-compact Embedded System User
Manual
The pin assignments are shown in the following table:
Serial Port Pin Number
RS-232 RS-422
(5-wire)
RS-422
(9-wire)
RS-485
(3-wire)
1~4
1
DCD
TXD-
TXD-
DATA-
2
RXD
TXD+
TXD+
DATA+
3
TXD
RXD+
RXD+
-----------
4
DTR
RXD-
RXD-
-----------
5
GND
GND
GND
GND
6
DSR
----------- RTS-
-----------
7
RTS
----------- RTS+
-----------
8
CTS
----------- CTS+
-----------
9
RI
----------- CTS-
-----------
2.13
Audio Out Connector
The SPC-2000 offers stereo audio connector of Line-Out. The audio chip controller is by ALC892
which is compliant with the Intel Azalia standard. To utilize the audio function in Windows, you
need to install corresponding drivers for Realtek ALC892 codec.
