Acrosser AR-B6003 - Manual (Page 12)

8. COM3_COM4 ( for COM3,COM4 use ) 9. SW2 ( RS-422,RS-485 function
select )
Pin SIGNAL
1 DCD
2 SIN
3 SOUT
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
SW2, DIP Switch
For RS-422,RS-485 Function
select(Default: All OFF For
RS-232)
RS-422 setting:
1 OFF
2 ON
3 OFF
4 ON
RS-485 setting:
1
ON
2
ON
3 OFF
4 ON
10. SW4 ( RS-422/485 TX Terminator resistor
selection )
11 GPIO_COM1 (For COM1 RS-232,
External GPIO control)
SW4 DIP Switch
For RS-422/485 TX Terminator resistor
selection)
(Default: all OFF)
GPIO Pin Define:
PIN SIGNAL PIN SIGNAL
1 GPO0 2 GPO1
3 GPO2 4 GPO3
5 GND 6 GND
7 GND 8 GND
9 GND 10 GND
11 GPI4 12 GPI5
13 GPI6 14 GPI7
15 VCC12A
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