Owner's manual

AFL-W19A/W19B/17D/W15A-N270 Panel PC
Page 26
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
2.5.8.1 COM3 RS-422 and RS-485 Pinouts
The pinouts for RS-422 and RS-485 operation of external serial port COM 3 are detailed
below.
COM 3 RS-422 Description
Pin 1 TX-
Pin 2 TX+
Pin 6 RX-
Pin 7 RX+
Table 2-11: RS-422 Pinouts