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©Vecow ECX-1200/1100 User Manual
GETTING TO KNOW YOUR ECX-1200/1100
2.5.3 JP2, JP3 : COM Port RI pin Select
JP2
JP3
Pin Header
Pin No.
Description
COM1 to COM2
JP2
1 - 2
+5V (1A max.)
3 - 4
+12V (0.5A max.)
5 - 6
RI (Default)
7 - 8
+5V (1A max.)
9 - 10
+12V (0.5A max.)
11 - 12
RI (Default)
Pin Header
Pin No.
Description
COM3 to COM4
JP3
1 - 2
+5V (1A max.)
3 - 4
+12V (0.5A max.)
5 - 6
RI (Default)
7 - 8
+5V (1A max.)
9 - 10
+12V (0.5A max.)
11 - 12
RI (Default)