Advantech PCM-3353, User Manual

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PCM-3353 User Manual 14
Momentarily pressing the reset button will activate a reset. The switch
should be rated for 10 mA, 5 V.
2.11 Audio interfaces (CN34/35)
2.11.1 Audio connector Audio-out(CN35), Audio-
in(CN34)
The board provides all major audio signals on a 8-pin cable connector,
These audio signals include Microphone in (mono), Line in (stereo) and
Line out (stereo).
2.12 COM port connector (CN20,CN30)
The board provides four serial ports: Four serial RS-232 ports in one 40
pin connector (CN30: COM1/2/3/4). It provides connections for serial
devices or a communication network. You can find the pin assignments
for the COM port connector in Appendix C.
2.12.1 Serial Port RS-422/485 (CN20)
Serial port can be configured to operate in RS-422 and RS-485 mode. RS-
422 and RS-485 in one pinheader (CN20) and can be configured via
CN39 connector.
2.13 VGA/LCD interface connections
The board’s PCI SVGA interface can drive conventional CRT displays
and is capable of driving a wide range of flat panel displays.
2.13.1 CRT display connector (CN27)
The CRT display connector is a 15-pin D-SUB connector used for con-
ventional CRT displays.
2.13.2 TTL TFT LCD connector (CN4)
Table 2.3: Serial Port RS-422/485 (CN39)
Setting Function
1-2 RS-232
3-4 RS-485
5-6 RS-422