IBASE IP402 - Manual (Page 12)

INSTALLATIONS
8 IP402 User’s Manual
JP1, JP2, JP3: RS232/422/485 (COM1) Selection
COM2~COM4 are fixed for RS-232 use only.
COM1 is selectable for RS232, RS-422 and RS-485.
The following table describes the jumper settings for COM1
selection.
COM1
Function
RS-232 RS-422 RS-485
Jumper
Setting
(pin closed)
JP1:
3-5 & 4-6
JP3:
3-5 & 4-6
JP2:
1-2
JP1:
1-3 & 2-4
JP3:
1-3 & 2-4
JP2:
3-4
JP1:
1-3 & 2-4
JP3:
1-3 & 2-4
JP2:
5-6