Owner's manual

Table Of Contents
AFL-xxA-N270 Series Panel PC
Page 39
The COM1 and COM3 Pin 9 Setting jumper locations are shown in Figure 4-8 below.
Figure 4-8: COM1 and COM3 Pin 9 Setting Jumper Locations
4.9.4.1 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 4-6: RS-422 Pinouts
COM 3 RS-485 Description
Pin 1 Data-
Pin 2 Data+
Table 4-7: RS-485 Pinouts