Advantech AIMB-501 - (Jsetcom3 & Jsetcom7); CN1;CN2: Power Setting for COM1 & COM2; COM3;COM7 RS232;422;485 Mode Selector (JSETCOM3 & JSETCOM7); Table 1.9: CN1;CN2: Power Setting for COM1 & COM2

AIMB-501 User Manual 10
1.8.7 COM3/COM7 RS232/422/485 mode selector (JSETCOM3 &
JSETCOM7)
Users can use JSETCOM3 & JSETCOM7 to select among RS232/422/485 mode for
COM3 & COM7. The default setting is RS232.
1.8.8 CN1/CN2: Power setting for COM1 & COM2
Table 1.8: COM3 & COM7 RS 232/422/485 mode selector (JSETCOM3 &
JSETCOM7)
Function Jumper Setting
*RS232 (5-6) + (7-9) + (8-10) + (13-15) + (14-16) closed
RS422 (3-4) + (9-11) + (10-12) + (15-17) + (16-18) closed
RS-485 (1-2) + (9-11) + (10-12) + (15-17) + (16-18) closed
*: Default
Table 1.9: CN1/CN2: Power setting for COM1 & COM2
Setting Function
1-2 No power
3-4 with 5V
5-6 with 12V