Com1 Rs-232/422/485 Mode Setting (Jp8, Jp9, Jp10); Com4 Data/Power Selection (Jp11); Com3 Data/Power Selection (Jp12); Com2 Data/Power Selection (Jp13) - AXIOMTEK CAPA831 User Manual

2.3.5

COM1 RS-232/422/485 Mode Setting (JP8, JP9, JP10)

Use these jumpers to set COM1 port to operate as RS-232, RS-422 or RS-485
communication mode. When these jumpers are set to operate as RS-422 or RS485,
please make sure COM1 is on data mode (see section 2.3.10)
Function
RS-232 mode
(Default)
RS-422 mode
RS-485 mode
2.3.6

COM4 Data/Power Selection (JP11)

The COM4 port has +5V level power capability on DCD and +12V level on RI by setting
this jumper.
Function
Power: Set CN9 pin 11 to +5V level
Data: Set CN9 pin 11 to DCD (Default)
Power: Set CN9 pin 18 to +12V level
Data: Set CN9 pin 18 to RI (Default)
2.3.7

COM3 Data/Power Selection (JP12)

The COM3 port has +5V level power capability on DCD and +12V level on RI by setting
this jumper.
Function
Power: Set CN9 pin 1 to +5V level
Data: Set CN9 pin 1 to DCD (Default)
Power: Set CN9 pin 8 to +12V level
Data: Set CN9 pin 8 to RI (Default)
2.3.8

COM2 Data/Power Selection (JP13)

The COM2 port has +5V level power capability on DCD and +12V level on RI by setting
this jumper. When this port is set to +5V or +12V level, please make sure its
communication mode is RS-232 (see section 2.3.4).
Function
Power: Set CN11 pin 1 to +5V level
Data: Set CN11 pin 1 to DCD (Default)
Power: Set CN11 pin 8 to +12V level
Data: Set CN11 pin 8 to RI (Default)
Board and Pin Assignments
®
CAPA831 Intel Atom
Setting
JP8 1-2 close
JP9 3-5, 4-6 close
JP10 3-5, 4-6 close
JP8 3-4 close
JP9 1-3, 2-4 close
JP10 1-3, 2-4 close
JP8 5-6 close
JP9 1-3, 2-4 close
JP10 1-3, 2-4 close
TM
D2550/N2800/N2600 Processor 3.5" SBC
Setting
1-3 close
3-5 close
2-4 close
4-6 close
Setting
1-3 close
3-5 close
2-4 close
4-6 close
Setting
1-3 close
3-5 close
2-4 close
4-6 close
11