IEI Integration PICOe-PV-D4251_N4551_D5251 v1.11 User Manual
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PICOe-PV-D4251/N4551/D5251 User Manual
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3.2.14 Serial Port Connectors (COM 1, COM 2 and COM 4) ................................. 28
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4.5.8 COM 3 RS-422 and 485 Termination Select Jumpers ..................................... 51
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