IBASE MI889 - Manual (Page 13)

INSTALLATIONS
JP1: LCD Panel Power Selection
JP2 LCD Panel Power
3.3V
5V
JP3, JP4, JP5: RS232/422/485 (COM1) Selection
COM1
Function
RS-232 RS-422 RS-485
Jumper
Setting
(pin closed)
JP5:
1-2
JP3:
3-5 & 4-6
JP4:
3-5 & 4-6
JP5:
3-4
JP3:
1-3 & 2-4
JP4:
1-3 & 2-4
JP5:
5-6
JP3:
1-3 & 2-4
JP4:
1-3 & 2-4
JP6: COM1 RS232 RI/+5V/+12V Power Setting
JP6 Setting Function
Pin 1-2
Short/Closed
+12V
Pin 3-4
Short/Closed
RI
Pin 5-6
Short/Closed
+5V
JP8: COM4 RS232 RI/+5V/+12V Power Setting
JP8 Setting Function
Pin 1-2
Short/Closed
+12V
Pin 3-4
Short/Closed
RI
Pin 5-6
Short/Closed
+5V
MI889 User’s Manual 9