Analog Voltage Output Terminals (Vout0 To Vout15); Digital I/O Terminals (Dio0 To Dio7) - Measurement Computing USB-3100 Series User Manual

USB-3105 User's Guide

Analog voltage output terminals (VOUT0 to VOUT15)

The screw terminal pins labeled
output range for each channel is software-programmable for either bipolar or unipolar. The bipolar range is
±10 V, and the unipolar range is 0 to 10 V. The channel outputs may be updated individually or simultaneously.

Digital I/O terminals (DIO0 to DIO7)

You can connect up to eight digital I/O lines to the screw terminals labeled
You can configure each digital bit for either input or output.
When you configure the digital bits for input, you can use the digital I/O terminals to detect the state of any TTL
level input. Refer to the switch shown in Figure 6 and the schematic shown in Figure 7. When the switch is set to
the +5 V USER input, DIO7 reads TRUE (1). If you move the switch to DGND, DIO7 reads FALSE (0).
Pin 56
Pin 28
+5V
DIO7
Figure 6. DIO7 detecting the state of a switch
Figure 5. USB-3105 signal pin out
VOUT0 to VOUT15 are voltage output terminals (see Figure 5). The voltage
Pin 53
DGND
Figure 7. Schematic showing DIO7 detecting the state of
14
to (pins 21 through 28).
DIO0 DIO7
DIO7
DGND +5V
a switch
Functional Details