IEI Integration AFL-W19A_W19B_17D_W15A-N270 v1.06 - Manual (Page 37)

AFL-W19A/W19B/17D/W15A-N270 Panel PC
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Figure 2-12: COM3 TX Function Select Jumper Pinout Locations
2.5.8 COM3 RS-232/422/485 Serial Port Select Jumper
Jumper Label: JP10
Jumper Type: 12-pin header (four 3-pin headers combined)
Jumper Settings:
See Table 2-10
Jumper Location: See Figure 2-13
The COM3 RS-232/422/485 Serial Port Select jumper sets the communication protocol
used by the second serial communications port (COM3) as RS-232, RS-422 or RS-485.
The COM3 RS-232/422/485 Serial Port Select settings are shown in Table 2-10.
RS-232/485 Select Description
Short 1-2 RS-232
Short 4-5 RS-232
Short 7-8 RS-232
Short 10-11 RS-232
Short 2-3 RS-422/485