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COM 4 RS232/422/485 Select
COM 4:
RS232/422/485
2
1
9
JP22, JP23 and JP25 are used to configure the COM port 4 to RS232, RS422 (Full Duplex) or
RS485. The pin functions of the COM port 4 will vary according to these jumpers' setting.
2
4
6
1
3
5
1-2 On: RS232
(default)
2
2
9
1
1
RS232
Chapter 2 Hardware Installation
2
4
1
3
1-3, 2-4 On:
RS232 (default)
2
4
JP23
1
3
JP25
3-5, 4-6 On:
RS422 Full Duplex/RS485
JP22
JP22
2
4
6
2
4
6
1
3
5
1
3
5
3-4 On: RS422
5-6 On: RS485
Full Duplex
COM 4
2
9
9
1
RS422
RS485
Full Duplex
Chapter 2
Note:
When COM 4 RS232/422/485 is selected, JP23 and JP25 must be set in accordance to
JP22.
6
5
6
5
15
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