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USB Port Pin-out (Face-In)
Pin1: External Power Supply (+5 VDC)
Pin2: Logger Communications Receiver Line (RX)
Pin3: Logger Communications Transmitter Line (TX)
Pin4: Common Ground (COM , GND)
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Most of iLog data loggers have one on-board thermistor located beside the status LED.
All "COM" terminals are connected together and should be connected to the common ground of
the process signals.
iLog Voltage Data Logger, Model: iVDC-10
Besides the on-board thermistor channel, the logger has one external voltage DC channel used
to measure single-ended voltage DC signal maximum of 10 volt. The following figure
illustrates the correct input connections:
Note: All inputs must share the same common ground.
iLog Data Loggers User's Manual
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Voltage External Input Connections
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