R o b u s t P a n e l P C A P C - 8 1 2 2Chapter 2 Hardware Installation 2 - 72.6 Clear CMOS (JP1)Warning:To avoid damaging the computer, always turn off the powersupply before setting “ Clear CMOS.” Before turning on thepower supply, set the jumper back to “Normal.”JP1 Function1-2 Active (Default)2-3 Clear2.7 Audio Out Select (JP2)JP2 Function1-3, 2-4 W/O Amplifier (Default)3-5, 4-6 W/ Amplifier2.8 COM2 Ring/+5V/+12V Selection (JP3)JP3 Function1-2 +12V3-4 +5V5-6 Ring (Default)2.9 COM2 RS-232/422/485 Select (JP4&JP5)JP4 JP5 Function1-2, 4-5, 7-8, 10-11 1-2 RS-232 (Default)2-3, 5-6, 8-9, 11-12 3-4 RS-4222-3, 5-6, 8-9, 11-12 5-6 RS-485
