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COM1/COM2 RS232/RS422/RS485 Select
COM 1
JP4 (for COM1) and JP5 (for COM2) are used to confi gure the COM ports to
RS232, RS422 (Full Duplex) or RS485.
The pin function of the COM ports will vary according to the jumper's setting.
2
4
6
1
3
5
1-2 On: RS232
(default)
1 2 3 4 5
6 7 8 9
RS232
JP4
JP4/JP5
2
4
6
1
3
5
3-4 On: RS422
Full Duplex
COM 1
1 2 3 4 5
6 7 8 9
RS422
Full Duplex
Hardware Installation
COM 2
JP5
2
4
6
1
3
5
5-6 On: RS485
1 2 3 4 5
6 7 8 9
RS485
2
27
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