IBASE IB905 - Manual (Page 15)

INSTALLATIONS
IB905 User’s Manual 11
JP5, JP6, JP8: RS232/RS422/RS485 (COM2) Selection
COM2
Function
RS-232 RS-422 RS-485
Jumper
Setting
(pin closed)
JP5:
3-5&4-6
JP8:
1-2
JP6:
3-5 & 4-6
JP5:
1-3&2-4
JP8:
3-4
JP6:
1-3 & 2-4
JP5:
1-3&2-4
JP8:
5-6
JP6:
1-3 & 2-4
JP9: COM2 RS232 RI/+5V/+12V Power Setting
JP9 Setting Function
Pin 1-2
Short/Closed
+5V
Pin 3-4
Short/Closed
RI
Pin 5-6
Short/Closed
+12V