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Hardware Installation
2.4.5 COM 4 RS232/RS485/AUX Select
JP8 is used to select COM 4’s protocol. If this jumper sets COM
4 to RS232, COM 4 can also serve as an auxiliary power by
setting JP9 appropriately. Refer to the table below for the jumper
settings.
X
JP8, JP9
JP8
1
3
1
2
3
4
9 10 11 12
JP9
JP9
1-5, 2-6 On
5-9, 6-10 On
7-11, 8-12 On
COM 4 RS232/RS485/AUX Select
RS232
RS485
Auxiliary power
JP8
1-2 On
2-3 On
1-2 On