Advantech PCA-6179, User Manual

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Chapter 1 Hardware Configuration 1 5
1.8.4 CMOS clear (J1)
The PCA-6179 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 1-5: CMOS clear (J1)
Function Jumper setting
* Keep CMOS data 1-2 closed
Clear CMOS data 2-3 closed
* default setting
1.8.5 Watchdog timer output (J2)
The PCA-6179 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-6179 will recover from a software failure or an
EMI problem. The J2 jumper settings control the outcome of what the
computer will do in the event the watchdog timer is tripped.
Table 1-6: Watchdog timer output (J2)
Function Jumper setting
IRQ11 1-2 closed
* Reset 2-3 closed
* default setting
1
1
1
1
1
1