IBASE MB941 - Manual (Page 14)

INSTALLATIONS
10 MB941 User’s Manual
JP2, JP1, JP7, JP6: COM1/2/3/4 RS232 +5V/+12V Power
Setting
JP4/JP6 Setting Function
Pin 1-2
Short/Closed
+12V
Pin 3-4
Short/Closed
Normal
Pin 5-6
Short/Closed
+5V
JP3, JP4, JP5: RS232/422/485 (COM1) Selection
COM1 is selectable for RS232, RS-422 and RS-485.
COM1
Function
RS-232 RS-422 RS-485
Jumper
Setting
(pin closed)
JP3:
1-2
JP4:
3-5 & 4-6
JP5:
3-5 & 4-6
JP3:
3-4
JP4:
1-3 & 2-4
JP5:
1-3 & 2-4
JP3:
5-6
JP4:
1-3 & 2-4
JP5:
1-3 & 2-4
JP8: Clear CMOS Contents
Use JP8, a 3-pin header, to clear the CMOS contents.
Note that the ATX-power connector should be disconnected from the
motherboard before clearing CMOS.
JP8 Setting Function
Pin 1-2
Short/Closed
Normal
Pin 2-3
Short/Closed
Clear CMOS