Cmos Clear (J1); Table 1.5:Cmos (J1); Watchdog Timer Output (J2); Table 1.6:Watchdog Timer Output (J2) - Advantech PCA-6184 User Manual

1.7.2 CMOS clear (J1)

The PCA-6184CPU card contains a jumper that can erase CMOS data
and reset the system BIOS information. Normally this jumper should be
set with pins 1-2 open. If you want to reset the CMOS data, set 1-2 pin for
just a few seconds, and then move the jumper back to 1-2 open. This pro-
cedure will reset the CMOS to its default setting.
Table 1.5: CMOS (J1)
Function
* Keep CMOS data1-2 open
Clear CMOS data 1-2 closed
* default setting

1.7.3 Watchdog timer output (J2)

The PCA-6184 contains a watchdog timer that will reset the CPU or send
a signal to IRQ11 in the event the CPU stops processing. This feature
means the PCA-6184 will recover from a software failure or an EMI
problem. The J2 jumper settings control the outcome of what the com-
puter will do in the event the watchdog timer is tripped.
Table 1.6: Watchdog timer output (J2)
Function
IRQ11
* Reset
* default setting
PCA-6184 User's Manual
Jumper Setting
1-2 closed
2-3 closed
Jumper Setting
12