Com1 Mode Select (Jp3, Jp5, Jp6); Com1 Data/Power Select (Jp4); Com2 Data/Power Select (Jp8) - AXIOMTEK IMB502 User Manual

2.3.3

COM1 Mode Select (JP3, JP5, JP6)

Use these jumpers (3x2-pin p=2.54mm) to set COM1 port to operate in RS-232, RS-422
or RS-485 communication mode.
Function
RS-232 mode
(Default)
RS-422 mode
RS-485 mode
2.3.4

COM1 Data/Power Select (JP4)

The COM1 port has +5V power capability on DCD# and +12V on RI# by setting this
jumper (3x2-pin p=2.54mm).
Function
Power: Set COM1 pin 1 to +5V
Data: Set COM1 pin 1 to DCD# (Default)
Power: Set COM1 pin 9 to +12V
Data: Set COM1 pin 9 to RI# (Default)
2.3.5

COM2 Data/Power Select (JP8)

The COM2 port has +5V power capability on DCD# and +12V on RI# by setting this
jumper (3x2-pin p=2.54mm).
Function
Power: Set COM2 pin 1 to +5V
Data: Set COM2 pin 1 to DCD# (Default)
Power: Set COM2 pin 8 to +12V
Data: Set COM2 pin 8 to RI# (Default)
Board and Pin Assignments
Setting
JP3 1-2 close
JP5 3-5, 4-6 close
JP6 3-5, 4-6 close
JP3 3-4 close
JP5 1-3, 2-4 close
JP6 1-3, 2-4 close
JP3 5-6 close
JP5 1-3, 2-4 close
JP6 1-3, 2-4 clos
IMB502 LGA1151 ATX Motherboard
JP3
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
JP5 JP6
9