Cmos Clear (J1); Watchdog Timer Output (J2) - Advantech PCA-6004V-00A1 Manual

1.7.2 CMOS clear (J1)

The PCA-6004 CPU 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 closed. If you want to reset the CMOS data, set J1 to
2-3 closed for just a few seconds, and then move the jumper back to 1-
2 closed. This procedure will reset the CMOS to its default setting.
Table 1-3: CMOS clear (J1)
Function
* Keep CMOS data
Clear CMOS data
* default setting

1.7.3 Watchdog timer output (J2)

The PCA-6004 contains a watchdog timer that will reset the CPU or
send a signal to IRQ11 in the event the software fails to reset the
watchdog timer. The J2 jumper settings control the outcome of what
the computer will do in the event the watchdog timer is tripped.
Table 1-4: Watchdog timer output (J2)
Function
IRQ11
* Reset
* default setting
PCA-6004 User's Manual
10
Jumper setting
1-2 closed
2-3 closed
Jumper setting
1-2 closed
2-3 closed
1
1
1
1