IBASE MB950 User Manual
Page 14
INSTALLATIONS
10
MB950 User’s Manual
JP1, JP2, JP3: RS232/RS422/RS485 (COM1) Selection
COM1
Function
RS-232
RS-422
RS-485
Jumper
Setting
(pin closed)
JP2:
1-2
JP1:
3-5 & 4-6
JP3:
3-5 & 4-6
JP2:
3-4
JP1:
1-3 & 2-4
JP3:
1-3 & 2-4
JP2:
5-6
JP1:
1-3 & 2-4
JP3:
1-3 & 2-4
JP4: COM1 RS232 RI/+5V/+12V Power Setting
JP4
Setting
Function
Pin 1-2
Short/Closed
+12V
Pin 3-4
Short/Closed
RI
Pin 5-6
Short/Closed
+5V
JP5: COM3 RS232 RI/+5V/+12V Power Setting
JP5
Setting
Function
Pin 1-2
Short/Closed
+12V
Pin 3-4
Short/Closed
RI
Pin 5-6
Short/Closed
+5V
JP9: COM4 RS232 RI/+5V/+12V Power Setting
JP9
Setting
Function
Pin 1-2
Short/Closed
+12V
Pin 3-4
Short/Closed
RI
Pin 5-6
Short/Closed
+5V