User’s Manual
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ROBO-503/ROBO-503N User’s Manual
3.6.4 COM2 RS-232/422/485 Select (J3, J4)
The ROBO-503 COM2 serial port can be selected as RS-232, RS-422, or RS-485 by
setting J3 & J4.
COM2 RS-232/422/485 Select (J3, J4)
RS-232* RS-422 RS-485
* default
2
4
6
1
3
5
J3
2
4
6
1
3
5
2
4
6
1
3
5
1
4
7
10
3
6
9
12
J4
1
4
7
10
3
6
9
12
1
4
7
10
3
6
9
12