4
Board Layout: Jumper and Connector Locations
(Unit: mm)
SW1: Mode selection switch
* ON=0, OFF=1
4-3-2-1 DESCRIPTION
0000
Four RS-422 (default)
0001
COM1 & 2=RS-485, COM3 & 4=RS-422
0010
COM1 & 2=RS-232, COM3 & 4=RS-422
0011
COM1 & 2=shutdown, COM3 & 4=RS-422
0100
COM1 & 2=RS-422, COM3 & 4=RS-485
0101 Four
RS-485
0110
COM1 & 2=RS-232, COM3 & 4=RS-485
0111
COM1 & 2=shutdown, COM3 & 4=RS-485
1000
COM1 & 2=RS-422, COM3 & 4=RS-232
1001
COM1 & 2=RS-485, COM3 & 4=RS-232
1010 Four
RS-232
1011
COM1 & 2=shutdown, COM3 & 4=RS-232
1100
COM1 & 2=RS-422, COM3 & 4=shutdown
1101
COM1 & 2=RS-485, COM3 & 4=shutdown
1110
COM1 & 2=RS-232, COM3 & 4=shutdown
1111 All
shutdown