EMS-SKLU/EMS-SKLU-Marine
2.4.2
COM 1/2 pin 9 signal select (JRI1/2)
JRI1
JRI2
* Default
2.4.3
Serial port 1/2 RS-232/422/485 mode select (JCOM_SEL1/2)
JCOM_SEL1
*Default
28 EMS-SKLU/EMS-SKLU-Marine Quick Reference Guide
JCOM_SEL2
Ring*
RS-232*
RS-422/ 485
+5V
+12V