ADLINK NuPRO-A40H - Manual (Page 39)

Hardware Information 25
NuPRO-A40H
Clear RTC Jumper (CN29) .
To clear the BIOS settings and data/time (SRTCRST# and
RTCRST# assert):
1. Power down and disconnect power from the system.
2. Short pins 2-3 on JP1.
3. Reconnect power and power up the system.
After power up, remove the jumper cap from pins 2-3 and reinstall it to
pins 1-2.
COM1 Mode Jumper Settings (CN16, CN31)
Short the jumper pins according to the following settings to set
COM1 to RS-232/422/485 mode:
CMOS Status Connection JBAT1
Normal 1 – 2
Clear CMOS 2 – 3
RS-232 RS-422 RS-485
CN16
On On Off
CN31
Off On On