DFI-ITOX G4M300-M12 User Manual page 29

COM 4 RS232/RS485/AUX Select
2
1
1-3, 2-4, 7-9, 8-10 On:
RS232
(default)
JP13 is used to set COM 4 to RS-232 or RS-485. If the serial
device connected to this port requires 5V/12V power from the
system board, set JP13 pins 9-11 and 10-12 to On. This setting
automatically sets COM 4 at RS-232.
12
2
1
11
3-5, 4-6, 7-9, 8-10 On:
RS485
Hardware Installation
2
JP13
1
12
2
11
1
9-11 (12V),
10-12 (5V) On:
Auxiliary power
2
12
11
12
11
29