IEI Integration AFL-W10A-N270 v3.20 - Manual (Page 37)

AFL-W10A-N270 User Manual
Page 23
Figure 2-6: COM1 and COM3 Pin 9 Setting Jumper Locations
2.5.4.1 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 2-6: RS-422 Pinouts
COM 3 RS-485 Description
Pin 1 Data-
Pin 2 Data+
Table 2-7: RS-485 Pinouts
2.5.5 COM3 RX Function Select Jumper
Jumper Label: JP9
Jumper Type: 8-pin header
Jumper Settings: See
76
Table 2-8
Jumper Location: See
76
Figure 2-7