
2.2 Serial Ports Interface
OPC8190 has four serial ports. COM1 is RS-232/422/485, while
COM2, COM3, and COM4 are RS-232.
The following table shows you the pin assignments of this connector:
Data Carrier Detect (DCD)
Data Terminal Ready (DTR)
In addition, COM1 can be set for RS-232/422/485 by jumper. The
jump setting is listed as below:
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