Advantech PCA-684 - 2.6 10;100 Base-T Ethernet Connectors (CN8 and CN34); 2.7 Serial Ports (CN9: COM1; CN10: COM2)

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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.
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 1.3: CMOS (J1)
Function Jumper Setting
* Keep CMOS data1-2 open
Clear CMOS data 1-2 closed
* default setting
Table 1.4:
Watchdog timer output (J2)
Function
Jumper Setting
IRQ11 1-2 closed
* Reset 2-3 closed
* default setting