1 com3 rs-422 and rs-485 pinouts, Table 3-7: rs-422 pinouts, Table 3-8: rs-485 pinouts – IEI Integration IBX-530B-N270 User Manual

Page 36: See figure 3-5, Figure 3-5

IBX-530B-270 Embedded System

Page 24

Figure 3-5: COM1 and COM3 Pin 9 Setting Jumper Locations

3.5.5.1 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 3-7: RS-422 Pinouts

COM 3

RS-485 Description

Pin 1

Data-

Pin 2

Data+

Table 3-8: RS-485 Pinouts