IMB500 LGA1151 ATX Motherboard
Board and Pin Assignments
9
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.
JP3 JP5 JP6
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).
2.3.5
COM2 Mode Select (JP7, JP9, JP10)
Use these jumpers (3x2-pin p=2.54mm) to set COM2 port to operate in RS-232, RS-422
or RS-485 communication mode.
JP7 JP9 JP10
2.3.6
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
Setting
RS-232 mode
(Default)
JP3 1-2 close
JP5 3-5, 4-6 close
JP6 3-5, 4-6 close
RS-422 mode
JP3 3-4 close
JP5 1-3, 2-4 close
JP6 1-3, 2-4 close
RS-485 mode
JP3 5-6 close
Function
Setting
Power: Set COM1 pin 1 to +5V
1-3 close
Data: Set COM1 pin 1 to DCD# (Default) 3-5 close
Power: Set COM1 pin 9 to +12V
2-4 close
Data: Set COM1 pin 9 to RI# (Default)
4-6 close
Function
Setting
RS-232 mode
(Default)
JP7 1-2 close
JP9 3-5, 4-6 close
JP10 3-5, 4-6 close
RS-422 mode
JP7 3-4 close
JP9 1-3, 2-4 close
JP10 1-3, 2-4 close
RS-485 mode
JP7 5-6 close
Function
Setting
Power: Set COM2 pin 1 to +5V
1-3 close
Data: Set COM2 pin 1 to DCD# (Default) 3-5 close
Power: Set COM2 pin 8 to +12V
2-4 close
Data: Set COM2 pin 8 to RI# (Default)
4-6 close
Содержание imb500
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