Chapter 3 The Engine of PPC-A84/A120 43
3.4 Wake on LAN Selection (Reserved) (JP1)
The PCM-5821 provides Wake-on LAN function when ATX power is
used. To enable Wake-on LAN function, the JP1 should be set as
shown below:
Table 3-3: Wake-on LAN selection (JP1)
*Normal Power Wake-on LAN
* default setting
3.5 CMOS Clear (JP2)

Warning: To avoid damaging the computer , alw ays turn off the

power supply before setting "Clear CMOS". Set the

jumper back to "Normal operation" before turning on

the power supply.

Table3-4: Clear CMOS/External RTC (JP2)
*Normal operation Clear CMOS
* default setting
3.6 Watchdog Timer Configuration
An onboard watch timer reduces the chance of disruptions which EMP
(electromagnetic pulse) interference can cause. This is an invaluable
protective device for standalone or unmanned applications. Setup
involves one jumper and running the control software. (Refer to
Appendix A.)
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4
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