Sharp R-530BW User Manual Page 36

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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
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