Advantech SPC-57 - Manual (Page 27)

Audio
AC’97 Stereo Audio w/ 2W Amp.
- Line-In, Line-Out, Speaker-out and Mic-In
SM Bus
For sensing DC power and battery status. 2x2 2.00mm pin
header
Backup
Battery
For RTC
LED Indicator
On board : IO_VCC3P3 indicator(beside CN12), CF interface
busy indicator(beside CN20).
Pin header: SYS_VCC3P3, CF card busy indicator, PCMCIA
card busy indicator, battery status indicator, LAN link, LAN
speed 10/100 indicator.
SW reset Through system configurator to execute the SW reset
Operating
Temperature
0~50°C (32°~140°F)
Environ-
ment Operating
Humidity
0%~90% Relative Humidity