User`s manual

SBC81206 PICMG 1.0 SBC User’s Manual
Jumpers and Connectors
8
2.3.1 COM2 Mode Select for Type Jumpers (JP1, JP2,
JP3)
These jumpers select the COM2 port’s communication mode to
operate RS-232 or RS-422/485.
Description Function Jumper Setting
RS-232
(Default)
JP3 JP2 JP1
RS-422
JP3 JP2 JP1
COM2 Mode
Select
RS-485
JP3 JP2 JP1