
3.0 SIGNAL CONNECTION
3.1 CONNECTOR DIAGRAM
The
Each channel has a screw terminal for signal high, signal low and ground.
3.2 ANALOG INPUTS
Analog inputs to the
WARNING - PLEASE READ
Measure the voltage between the grounds at the signal source and the PC. Use a volt meter and place the red probe on the PC ground and the black probe on the signal ground. If there is more than 10 volts, do not connect the
3.3 FLOATING DIFFERENTIAL
A floating differential input is two wires from the signal source and a ground reference resistor (10 Kohms is a typical value) installed at the
The reference resistor is connected between the
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