1.8.4 COM2 RS 232/422/485 mode selector (J2)

Users can use J2 to select among RS 232/422/485 modes for COM2. The default setting is RS 232.

Table 1.6: COM2 RS 232/422/485 mode selector (J2)

Function

Jumper Setting

 

 

RS232

(5-6) + (7-9) + (8-10) + (13-15) + (14-16) closed

 

 

RS422

(3-4) + (9-11) + (10-12) + (15-17) + (16-18) closed

 

 

RS485

(1-2) + (9-11) + (10-12) + (15-17) + (16-18) closed

 

 

1.8.5 LVDS Power 3.3V/5V selector (J6)

Table 1.7: LVDS Power 3.3V/5V selector (J6)

Function

Jumper Setting

5V

1

 

1-2 closed

*3.3V

1

 

2-3 closed

*default setting

 

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Advantech DVMB-554E user manual 4 COM2 RS 232/422/485 mode selector J2, Lvds Power 3.3V/5V selector J6