IEI Integration AFL-W19A_17D_W15A-N270 v3.00 - Manual (Page 35)

AFL-W19A/17D/W15A-N270 Panel PC
Page 24
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
Short 5-6 RS-422/485
Short 8-9 RS-422/485
Short 11-12 RS-422/485
Table 2-10: COM3 RS-232/422/485 Serial Port Select Jumper Settings
The COM3 RS-232/422/485 Serial Port Select jumper location is shown in Figure 2-13.
Figure 2-13: COM3 RS-232/422/485 Serial Port Select Jumper Location