SBC82400 ISA Half-Size CPU Board Series User’s Manual
Jumpers and Connectors
10
2.3.5 COM2 RS-232/422/485 Selection: JP9, JP10,
JP11
COM2 JP9
JP10
JP11
RS-232 (default)
1-2
3-5, 4-6
3-5, 4-6
RS-422
3-4
1-3, 2-4
1-3, 2-4
RS-485
5-6, 7-8
1-3, 2-4 1-3,
2-4
2
4
6
1
3
5
7
8
JP9
2
4
6
1
3
5
JP10/11
2.3.6 CMOS Clear Jumper: JP13
Options Setting
Normal
Short 1-2 (default)
Clear CMOS
Short 2-3
JP13
1
2
3
2.3.7 Compact Flash Voltage Selection: JP14
Options Setting
5V
Short 1-2 (default)
3.3V
Short 2-3
JP9
1
2
3
2.3.8 Compact Flash Master/Slave Selection: JP15
Options Setting
Master
Close
Slave
Open (default)
