ADLINK NuPRO-E340 - Manual (Page 35)

Hardware Information 21
NuPRO-E340
2.4 Jumpers
Clear CMOS (JBAT1)
The CMOS RAM data contains the date / time and BIOS setting
information. CMOS is powered by the onboard button cell battery.
To erase the CMOS RAM data:
1. Power down and disconnect power from the system.
2. Short pins 2-3 on JP1.
3. Reconnect power and power up the system.
4. After power up, remove the jumper cap from pins 2-3
and reinstall it to pins 1-2.
COM1 Mode Jumper Settings (JP1-4)
Short the jumper pins according to the following settings to set
COM1 to RS-232/422/485/485+ mode:
RTC status Connection JBAT1
Normal 1 – 2
Clear CMOS 2 – 3
RS-232 RS-422 RS-485 RS-485+
JP1 1-2 3-4 5-6 5-6
JP2 1-3, 2-4 3-5, 4-6 3-5, 4-6 3-5, 4-6
JP3 1-3, 2-4 3-5, 4-6 3-5, 4-6 3-5, 4-6
JP4 – 1-3, 2-4 1-3, 2-4 3-5, 4-6