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1 com3 rs-422 and rs-485 pinouts, Table 4-6: rs-422 pinouts, Table 4-7: rs-485 pinouts – IEI Integration AFL-xxA-N270-Series v2.11 User Manual

Page 53: See figure 4-8

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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

See also other documents in the category IEI Integration Computers: