GOT-2770S User’s Manual
Appendix A
Example Program
The GOT-2770S offers loop back test program for three comports.
Please select the program D:\GOT-2770S\Example\Serial Test.
Serial port loop back test program
Before running the program, you need a RS-232 to RS-485 converter
such as AXIOMTEK I-7520 first. Then, you connect COM2 & COM3 of
the GOT-2770S.
Wiring diagram:
GOT-2770S
Com2[232]
9P D-SUB Female
2 TX
3 RX
5 GND
RS232/485
Converter
232 485
TX
Data-
RX
Data+
GND
GOT-2770S
Com3[485]
9P D-SUB Male
2 RX -
3 RX +
4 TX -
5 TX+
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