Kontron COMe Ref. Carrier T2 User Manual
Page 46
COM Express™ miniBaseboard Type 2
/ Connectors and Features
41
16
VCC_RTC
3V-I
3V backup cell input. Should be connected to a 3V backup cell for RTC operation and
storage register non-volatility in the absence of system power. (VBATT = 2.4 – 3.3V)
17
#THRM
3.3V-I
Input from off-module temperature sensor indicating an over temperature situation
18
GND
GND
Ground
19
PWR_OK
3.3V-I
High active input indicating that power from the power supply is ready. It can also
be used as low active reset input signal.
20
GND
GND
Ground
21
#PWRBTN
3.3V-I
Power Button Input. This input is used to support the ACPI Power Button function.
22
GND
GND
Ground
23
#ATA_ACT
3.3V-O
Low active output signal, which indicates activity on IDE interfaces.
24
#CB_RESET
3.3V-O
Low active Reset output from module to carrier board